JQuery实例入门(添加鼠标事件)

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11.html 来自:http://blog.csdn.net/greatverve/archive/2008/11/04/3219473.aspx

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>无标题页</title>
<script type="text/javascript" src="jquery-latest.js"></script>

<style type="text/css">
.over {
background:Red; /*这个将是鼠标高亮行的背景色*/
}
.color{
background:Green;
}
</style>

<script type="text/javascript">
$(document).ready(function() {
$("#user").mouseover(function(){
$(this).removeClass("color").addClass("over");
$(this).attr("height","100px");
})
.mouseout(function(){
$(this).removeClass("over").addClass("color");
});
})
</script>
</head>
<body>
<div id="user" class="color">鼠标移动过来</div>
</body>
</html>
jquery-latest.js======================

/* prevent execution of jQuery if included more than once */
if(typeof window.jQuery == "undefined") {
/*
* jQuery 1.1.2 - New Wave Javascript
*
* Copyright (c) 2007 John Resig (jquery.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2007-02-28 12:03:00 -0500 (Wed, 28 Feb 2007) $
* $Rev: 1465 $
*/

// Global undefined variable
window.undefined = window.undefined;
var jQuery = function(a,c) {
// If the context is global, return a new object
if ( window == this )
return new jQuery(a,c);

// Make sure that a selection was provided
a = a || document;

// HANDLE: $(function)
// Shortcut for document ready
if ( jQuery.isFunction(a) )
return new jQuery(document)[ jQuery.fn.ready ? "ready" : "load" ]( a );

// Handle HTML strings
if ( typeof a == "string" ) {
// HANDLE: $(html) -> $(array)
var m = /^[^<]*(<(.|/s)+>)[^>]*$/.exec(a);
if ( m )
a = jQuery.clean( [ m[1] ] );

// HANDLE: $(expr)
else
return new jQuery( c ).find( a );
}

return this.setArray(
// HANDLE: $(array)
a.constructor == Array && a ||

// HANDLE: $(arraylike)
// Watch for when an array-like object is passed as the selector
(a.jquery || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType) && jQuery.makeArray( a ) ||

// HANDLE: $(*)
[ a ] );
};

// Map over the $ in case of overwrite
if ( typeof $ != "undefined" )
jQuery._$ = $;

// Map the jQuery namespace to the '$' one
var $ = jQuery;

jQuery.fn = jQuery.prototype = {
jquery: "1.1.2",

size: function() {
return this.length;
},

length: 0,

get: function( num ) {
return num == undefined ?

// Return a 'clean' array
jQuery.makeArray( this ) :

// Return just the object
this[num];
},
pushStack: function( a ) {
var ret = jQuery(a);
ret.prevObject = this;
return ret;
},
setArray: function( a ) {
this.length = 0;
[].push.apply( this, a );
return this;
},
each: function( fn, args ) {
return jQuery.each( this, fn, args );
},
index: function( obj ) {
var pos = -1;
this.each(function(i){
if ( this == obj ) pos = i;
});
return pos;
},

attr: function( key, value, type ) {
var obj = key;

// Look for the case where we're accessing a style value
if ( key.constructor == String )
if ( value == undefined )
return this.length && jQuery[ type || "attr" ]( this[0], key ) || undefined;
else {
obj = {};
obj[ key ] = value;
}

// Check to see if we're setting style values
return this.each(function(index){
// Set all the styles
for ( var prop in obj )
jQuery.attr(
type ? this.style : this,
prop, jQuery.prop(this, obj[prop], type, index, prop)
);
});
},

css: function( key, value ) {
return this.attr( key, value, "curCSS" );
},

text: function(e) {
if ( typeof e == "string" )
return this.empty().append( document.createTextNode( e ) );

var t = "";
jQuery.each( e || this, function(){
jQuery.each( this.childNodes, function(){
if ( this.nodeType != 8 )
t += this.nodeType != 1 ?
this.nodeValue : jQuery.fn.text([ this ]);
});
});
return t;
},

wrap: function() {
// The elements to wrap the target around
var a = jQuery.clean(arguments);

// Wrap each of the matched elements individually
return this.each(function(){
// Clone the structure that we're using to wrap
var b = a[0].cloneNode(true);

// Insert it before the element to be wrapped
this.parentNode.insertBefore( b, this );

// Find the deepest point in the wrap structure
while ( b.firstChild )
b = b.firstChild;

// Move the matched element to within the wrap structure
b.appendChild( this );
});
},
append: function() {
return this.domManip(arguments, true, 1, function(a){
this.appendChild( a );
});
},
prepend: function() {
return this.domManip(arguments, true, -1, function(a){
this.insertBefore( a, this.firstChild );
});
},
before: function() {
return this.domManip(arguments, false, 1, function(a){
this.parentNode.insertBefore( a, this );
});
},
after: function() {
return this.domManip(arguments, false, -1, function(a){
this.parentNode.insertBefore( a, this.nextSibling );
});
},
end: function() {
return this.prevObject || jQuery([]);
},
find: function(t) {
return this.pushStack( jQuery.map( this, function(a){
return jQuery.find(t,a);
}), t );
},
clone: function(deep) {
return this.pushStack( jQuery.map( this, function(a){
var a = a.cloneNode( deep != undefined ? deep : true );
a.$events = null; // drop $events expando to avoid firing incorrect events
return a;
}) );
},

filter: function(t) {
return this.pushStack(
jQuery.isFunction( t ) &&
jQuery.grep(this, function(el, index){
return t.apply(el, [index])
}) ||

jQuery.multiFilter(t,this) );
},

not: function(t) {
return this.pushStack(
t.constructor == String &&
jQuery.multiFilter(t, this, true) ||

jQuery.grep(this, function(a) {
return ( t.constructor == Array || t.jquery )
? jQuery.inArray( a, t ) < 0
: a != t;
})
);
},

add: function(t) {
return this.pushStack( jQuery.merge(
this.get(),
t.constructor == String ?
jQuery(t).get() :
t.length != undefined && (!t.nodeName || t.nodeName == "FORM") ?
t : [t] )
);
},
is: function(expr) {
return expr ? jQuery.filter(expr,this).r.length > 0 : false;
},

val: function( val ) {
return val == undefined ?
( this.length ? this[0].value : null ) :
this.attr( "value", val );
},

html: function( val ) {
return val == undefined ?
( this.length ? this[0].innerHTML : null ) :
this.empty().append( val );
},
domManip: function(args, table, dir, fn){
var clone = this.length > 1;
var a = jQuery.clean(args);
if ( dir < 0 )
a.reverse();

return this.each(function(){
var obj = this;

if ( table && jQuery.nodeName(this, "table") && jQuery.nodeName(a[0], "tr") )
obj = this.getElementsByTagName("tbody")[0] || this.appendChild(document.createElement("tbody"));

jQuery.each( a, function(){
fn.apply( obj, [ clone ? this.cloneNode(true) : this ] );
});

});
}
};

jQuery.extend = jQuery.fn.extend = function() {
// copy reference to target object
var target = arguments[0],
a = 1;

// extend jQuery itself if only one argument is passed
if ( arguments.length == 1 ) {
target = this;
a = 0;
}
var prop;
while (prop = arguments[a++])
// Extend the base object
for ( var i in prop ) target[i] = prop[i];

// Return the modified object
return target;
};

jQuery.extend({
noConflict: function() {
if ( jQuery._$ )
$ = jQuery._$;
return jQuery;
},

// This may seem like some crazy code, but trust me when I say that this
// is the only cross-browser way to do this. --John
isFunction: function( fn ) {
return !!fn && typeof fn != "string" && !fn.nodeName &&
typeof fn[0] == "undefined" && /function/i.test( fn + "" );
},

// check if an element is in a XML document
isXMLDoc: function(elem) {
return elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
},

nodeName: function( elem, name ) {
return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
},
// args is for internal usage only
each: function( obj, fn, args ) {
if ( obj.length == undefined )
for ( var i in obj )
fn.apply( obj[i], args || [i, obj[i]] );
else
for ( var i = 0, ol = obj.length; i < ol; i++ )
if ( fn.apply( obj[i], args || [i, obj[i]] ) === false ) break;
return obj;
},

prop: function(elem, value, type, index, prop){
// Handle executable functions
if ( jQuery.isFunction( value ) )
value = value.call( elem, [index] );

// exclude the following css properties to add px
var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;

// Handle passing in a number to a CSS property
return value && value.constructor == Number && type == "curCSS" && !exclude.test(prop) ?
value + "px" :
value;
},

className: {
// internal only, use addClass("class")
add: function( elem, c ){
jQuery.each( c.split(//s+/), function(i, cur){
if ( !jQuery.className.has( elem.className, cur ) )
elem.className += ( elem.className ? " " : "" ) + cur;
});
},

// internal only, use removeClass("class")
remove: function( elem, c ){
elem.className = c ?
jQuery.grep( elem.className.split(//s+/), function(cur){
return !jQuery.className.has( c, cur );
}).join(" ") : "";
},

// internal only, use is(".class")
has: function( t, c ) {
t = t.className || t;
// escape regex characters
c = c.replace(/([/.///+/*/?/[/^/]/$/(/)/{/}/=/!/</>/|/:])/g, "//$1");
return t && new RegExp("(^|//s)" + c + "(//s|$)").test( t );
}
},
swap: function(e,o,f) {
for ( var i in o ) {
e.style["old"+i] = e.style[i];
e.style[i] = o[i];
}
f.apply( e, [] );
for ( var i in o )
e.style[i] = e.style["old"+i];
},

css: function(e,p) {
if ( p == "height" || p == "width" ) {
var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];

jQuery.each( d, function(){
old["padding" + this] = 0;
old["border" + this + "Width"] = 0;
});

jQuery.swap( e, old, function() {
if (jQuery.css(e,"display") != "none") {
oHeight = e.offsetHeight;
oWidth = e.offsetWidth;
} else {
e = jQuery(e.cloneNode(true))
.find(":radio").removeAttr("checked").end()
.css({
visibility: "hidden", position: "absolute", display: "block", right: "0", left: "0"
}).appendTo(e.parentNode)[0];

var parPos = jQuery.css(e.parentNode,"position");
if ( parPos == "" || parPos == "static" )
e.parentNode.style.position = "relative";

oHeight = e.clientHeight;
oWidth = e.clientWidth;

if ( parPos == "" || parPos == "static" )
e.parentNode.style.position = "static";

e.parentNode.removeChild(e);
}
});

return p == "height" ? oHeight : oWidth;
}

return jQuery.curCSS( e, p );
},

curCSS: function(elem, prop, force) {
var ret;

if (prop == "opacity" && jQuery.browser.msie)
return jQuery.attr(elem.style, "opacity");

if (prop == "float" || prop == "cssFloat")
prop = jQuery.browser.msie ? "styleFloat" : "cssFloat";

if (!force && elem.style[prop])
ret = elem.style[prop];

else if (document.defaultView && document.defaultView.getComputedStyle) {

if (prop == "cssFloat" || prop == "styleFloat")
prop = "float";

prop = prop.replace(/([A-Z])/g,"-$1").toLowerCase();
var cur = document.defaultView.getComputedStyle(elem, null);

if ( cur )
ret = cur.getPropertyValue(prop);
else if ( prop == "display" )
ret = "none";
else
jQuery.swap(elem, { display: "block" }, function() {
var c = document.defaultView.getComputedStyle(this, "");
ret = c && c.getPropertyValue(prop) || "";
});

} else if (elem.currentStyle) {

var newProp = prop.replace(//-(/w)/g,function(m,c){return c.toUpperCase();});
ret = elem.currentStyle[prop] || elem.currentStyle[newProp];

}

return ret;
},

clean: function(a) {
var r = [];

jQuery.each( a, function(i,arg){
if ( !arg ) return;

if ( arg.constructor == Number )
arg = arg.toString();

// Convert html string into DOM nodes
if ( typeof arg == "string" ) {
// Trim whitespace, otherwise indexOf won't work as expected
var s = jQuery.trim(arg), div = document.createElement("div"), tb = [];

var wrap =
// option or optgroup
!s.indexOf("<opt") &&
[1, "<select>", "</select>"] ||

(!s.indexOf("<thead") || !s.indexOf("<tbody") || !s.indexOf("<tfoot")) &&
[1, "<table>", "</table>"] ||

!s.indexOf("<tr") &&
[2, "<table><tbody>", "</tbody></table>"] ||

// <thead> matched above
(!s.indexOf("<td") || !s.indexOf("<th")) &&
[3, "<table><tbody><tr>", "</tr></tbody></table>"] ||

[0,"",""];

// Go to html and back, then peel off extra wrappers
div.innerHTML = wrap[1] + s + wrap[2];

// Move to the right depth
while ( wrap[0]-- )
div = div.firstChild;

// Remove IE's autoinserted <tbody> from table fragments
if ( jQuery.browser.msie ) {

// String was a <table>, *may* have spurious <tbody>
if ( !s.indexOf("<table") && s.indexOf("<tbody") < 0 )
tb = div.firstChild && div.firstChild.childNodes;

// String was a bare <thead> or <tfoot>
else if ( wrap[1] == "<table>" && s.indexOf("<tbody") < 0 )
tb = div.childNodes;

for ( var n = tb.length-1; n >= 0 ; --n )
if ( jQuery.nodeName(tb[n], "tbody") && !tb[n].childNodes.length )
tb[n].parentNode.removeChild(tb[n]);

}

arg = [];
for (var i=0, l=div.childNodes.length; i<l; i++)
arg.push(div.childNodes[i]);
}

if ( arg.length === 0 && !jQuery.nodeName(arg, "form") )
return;

if ( arg[0] == undefined || jQuery.nodeName(arg, "form") )
r.push( arg );
else
r = jQuery.merge( r, arg );

});

return r;
},

attr: function(elem, name, value){
var fix = jQuery.isXMLDoc(elem) ? {} : {
"for": "htmlFor",
"class": "className",
"float": jQuery.browser.msie ? "styleFloat" : "cssFloat",
cssFloat: jQuery.browser.msie ? "styleFloat" : "cssFloat",
innerHTML: "innerHTML",
className: "className",
value: "value",
disabled: "disabled",
checked: "checked",
readonly: "readOnly",
selected: "selected"
};

// IE actually uses filters for opacity ... elem is actually elem.style
if ( name == "opacity" && jQuery.browser.msie && value != undefined ) {
// IE has trouble with opacity if it does not have layout
// Force it by setting the zoom level
elem.zoom = 1;

// Set the alpha filter to set the opacity
return elem.filter = elem.filter.replace(/alpha/([^/)]*/)/gi,"") +
( value == 1 ? "" : "alpha(opacity=" + value * 100 + ")" );

} else if ( name == "opacity" && jQuery.browser.msie )
return elem.filter ?
parseFloat( elem.filter.match(/alpha/(opacity=(.*)/)/)[1] ) / 100 : 1;

// Mozilla doesn't play well with opacity 1
if ( name == "opacity" && jQuery.browser.mozilla && value == 1 )
value = 0.9999;

// Certain attributes only work when accessed via the old DOM 0 way
if ( fix[name] ) {
if ( value != undefined ) elem[fix[name]] = value;
return elem[fix[name]];

} else if ( value == undefined && jQuery.browser.msie && jQuery.nodeName(elem, "form") && (name == "action" || name == "method") )
return elem.getAttributeNode(name).nodeValue;

// IE elem.getAttribute passes even for style
else if ( elem.tagName ) {
if ( value != undefined ) elem.setAttribute( name, value );
if ( jQuery.browser.msie && /href|src/.test(name) && !jQuery.isXMLDoc(elem) )
return elem.getAttribute( name, 2 );
return elem.getAttribute( name );

// elem is actually elem.style ... set the style
} else {
name = name.replace(/-([a-z])/ig,function(z,b){return b.toUpperCase();});
if ( value != undefined ) elem[name] = value;
return elem[name];
}
},
trim: function(t){
return t.replace(/^/s+|/s+$/g, "");
},

makeArray: function( a ) {
var r = [];

if ( a.constructor != Array )
for ( var i = 0, al = a.length; i < al; i++ )
r.push( a[i] );
else
r = a.slice( 0 );

return r;
},

inArray: function( b, a ) {
for ( var i = 0, al = a.length; i < al; i++ )
if ( a[i] == b )
return i;
return -1;
},
merge: function(first, second) {
var r = [].slice.call( first, 0 );

// Now check for duplicates between the two arrays
// and only add the unique items
for ( var i = 0, sl = second.length; i < sl; i++ )
// Check for duplicates
if ( jQuery.inArray( second[i], r ) == -1 )
// The item is unique, add it
first.push( second[i] );

return first;
},
grep: function(elems, fn, inv) {
// If a string is passed in for the function, make a function
// for it (a handy shortcut)
if ( typeof fn == "string" )
fn = new Function("a","i","return " + fn);

var result = [];

// Go through the array, only saving the items
// that pass the validator function
for ( var i = 0, el = elems.length; i < el; i++ )
if ( !inv && fn(elems[i],i) || inv && !fn(elems[i],i) )
result.push( elems[i] );

return result;
},
map: function(elems, fn) {
// If a string is passed in for the function, make a function
// for it (a handy shortcut)
if ( typeof fn == "string" )
fn = new Function("a","return " + fn);

var result = [], r = [];

// Go through the array, translating each of the items to their
// new value (or values).
for ( var i = 0, el = elems.length; i < el; i++ ) {
var val = fn(elems[i],i);

if ( val !== null && val != undefined ) {
if ( val.constructor != Array ) val = [val];
result = result.concat( val );
}
}

var r = result.length ? [ result[0] ] : [];

check: for ( var i = 1, rl = result.length; i < rl; i++ ) {
for ( var j = 0; j < i; j++ )
if ( result[i] == r[j] )
continue check;

r.push( result[i] );
}

return r;
}
});

/*
* Whether the W3C compliant box model is being used.
*
* @property
* @name $.boxModel
* @type Boolean
* @cat JavaScript
*/
new function() {
var b = navigator.userAgent.toLowerCase();

// Figure out what browser is being used
jQuery.browser = {
safari: /webkit/.test(b),
opera: /opera/.test(b),
msie: /msie/.test(b) && !/opera/.test(b),
mozilla: /mozilla/.test(b) && !/(compatible|webkit)/.test(b)
};

// Check to see if the W3C box model is being used
jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
};

jQuery.each({
parent: "a.parentNode",
parents: "jQuery.parents(a)",
next: "jQuery.nth(a,2,'nextSibling')",
prev: "jQuery.nth(a,2,'previousSibling')",
siblings: "jQuery.sibling(a.parentNode.firstChild,a)",
children: "jQuery.sibling(a.firstChild)"
}, function(i,n){
jQuery.fn[ i ] = function(a) {
var ret = jQuery.map(this,n);
if ( a && typeof a == "string" )
ret = jQuery.multiFilter(a,ret);
return this.pushStack( ret );
};
});

jQuery.each({
appendTo: "append",
prependTo: "prepend",
insertBefore: "before",
insertAfter: "after"
}, function(i,n){
jQuery.fn[ i ] = function(){
var a = arguments;
return this.each(function(){
for ( var j = 0, al = a.length; j < al; j++ )
jQuery(a[j])[n]( this );
});
};
});

jQuery.each( {
removeAttr: function( key ) {
jQuery.attr( this, key, "" );
this.removeAttribute( key );
},
addClass: function(c){
jQuery.className.add(this,c);
},
removeClass: function(c){
jQuery.className.remove(this,c);
},
toggleClass: function( c ){
jQuery.className[ jQuery.className.has(this,c) ? "remove" : "add" ](this, c);
},
remove: function(a){
if ( !a || jQuery.filter( a, [this] ).r.length )
this.parentNode.removeChild( this );
},
empty: function() {
while ( this.firstChild )
this.removeChild( this.firstChild );
}
}, function(i,n){
jQuery.fn[ i ] = function() {
return this.each( n, arguments );
};
});

jQuery.each( [ "eq", "lt", "gt", "contains" ], function(i,n){
jQuery.fn[ n ] = function(num,fn) {
return this.filter( ":" + n + "(" + num + ")", fn );
};
});

jQuery.each( [ "height", "width" ], function(i,n){
jQuery.fn[ n ] = function(h) {
return h == undefined ?
( this.length ? jQuery.css( this[0], n ) : null ) :
this.css( n, h.constructor == String ? h : h + "px" );
};
});
jQuery.extend({
expr: {
"": "m[2]=='*'||jQuery.nodeName(a,m[2])",
"#": "a.getAttribute('id')==m[2]",
":": {
// Position Checks
lt: "i<m[3]-0",
gt: "i>m[3]-0",
nth: "m[3]-0==i",
eq: "m[3]-0==i",
first: "i==0",
last: "i==r.length-1",
even: "i%2==0",
odd: "i%2",

// Child Checks
"nth-child": "jQuery.nth(a.parentNode.firstChild,m[3],'nextSibling',a)==a",
"first-child": "jQuery.nth(a.parentNode.firstChild,1,'nextSibling')==a",
"last-child": "jQuery.nth(a.parentNode.lastChild,1,'previousSibling')==a",
"only-child": "jQuery.sibling(a.parentNode.firstChild).length==1",

// Parent Checks
parent: "a.firstChild",
empty: "!a.firstChild",

// Text Check
contains: "jQuery.fn.text.apply([a]).indexOf(m[3])>=0",

// Visibility
visible: 'a.type!="hidden"&&jQuery.css(a,"display")!="none"&&jQuery.css(a,"visibility")!="hidden"',
hidden: 'a.type=="hidden"||jQuery.css(a,"display")=="none"||jQuery.css(a,"visibility")=="hidden"',

// Form attributes
enabled: "!a.disabled",
disabled: "a.disabled",
checked: "a.checked",
selected: "a.selected||jQuery.attr(a,'selected')",

// Form elements
text: "a.type=='text'",
radio: "a.type=='radio'",
checkbox: "a.type=='checkbox'",
file: "a.type=='file'",
password: "a.type=='password'",
submit: "a.type=='submit'",
image: "a.type=='image'",
reset: "a.type=='reset'",
button: 'a.type=="button"||jQuery.nodeName(a,"button")',
input: "/input|select|textarea|button/i.test(a.nodeName)"
},
".": "jQuery.className.has(a,m[2])",
"@": {
"=": "z==m[4]",
"!=": "z!=m[4]",
"^=": "z&&!z.indexOf(m[4])",
"$=": "z&&z.substr(z.length - m[4].length,m[4].length)==m[4]",
"*=": "z&&z.indexOf(m[4])>=0",
"": "z",
_resort: function(m){
return ["", m[1], m[3], m[2], m[5]];
},
_prefix: "z=a[m[3]];if(!z||/href|src/.test(m[3]))z=jQuery.attr(a,m[3]);"
},
"[": "jQuery.find(m[2],a).length"
},

// The regular expressions that power the parsing engine
parse: [
// Match: [@value='test'], [@foo]
/^/[ *(@)([a-z0-9_-]*) *([!*$^=]*) *('?"?)(.*?)/4 */]/i,

// Match: [div], [div p]
/^(/[)/s*(.*?(/[.*?/])?[^[]*?)/s*/]/,

// Match: :contains('foo')
/^(:)([a-z0-9_-]*)/("?'?(.*?(/(.*?/))?[^(]*?)"?'?/)/i,

// Match: :even, :last-chlid
/^([:.#]*)([a-z0-9_*-]*)/i
],

token: [
/^(//?/./.)/, "a.parentNode",
/^(>|//)/, "jQuery.sibling(a.firstChild)",
/^(/+)/, "jQuery.nth(a,2,'nextSibling')",
/^(~)/, function(a){
var s = jQuery.sibling(a.parentNode.firstChild);
return s.slice(jQuery.inArray(a,s) + 1);
}
],

multiFilter: function( expr, elems, not ) {
var old, cur = [];

while ( expr && expr != old ) {
old = expr;
var f = jQuery.filter( expr, elems, not );
expr = f.t.replace(/^/s*,/s*/, "" );
cur = not ? elems = f.r : jQuery.merge( cur, f.r );
}

return cur;
},
find: function( t, context ) {
// Quickly handle non-string expressions
if ( typeof t != "string" )
return [ t ];

// Make sure that the context is a DOM Element
if ( context && !context.nodeType )
context = null;

// Set the correct context (if none is provided)
context = context || document;

// Handle the common XPath // expression
if ( !t.indexOf("//") ) {
context = context.documentElement;
t = t.substr(2,t.length);

// And the / root expression
} else if ( !t.indexOf("/") ) {
context = context.documentElement;
t = t.substr(1,t.length);
if ( t.indexOf("/") >= 1 )
t = t.substr(t.indexOf("/"),t.length);
}

// Initialize the search
var ret = [context], done = [], last = null;

// Continue while a selector expression exists, and while
// we're no longer looping upon ourselves
while ( t && last != t ) {
var r = [];
last = t;

t = jQuery.trim(t).replace( /^/////i, "" );

var foundToken = false;

// An attempt at speeding up child selectors that
// point to a specific element tag
var re = /^[//>]/s*([a-z0-9*-]+)/i;
var m = re.exec(t);

if ( m ) {
// Perform our own iteration and filter
jQuery.each( ret, function(){
for ( var c = this.firstChild; c; c = c.nextSibling )
if ( c.nodeType == 1 && ( jQuery.nodeName(c, m[1]) || m[1] == "*" ) )
r.push( c );
});

ret = r;
t = t.replace( re, "" );
if ( t.indexOf(" ") == 0 ) continue;
foundToken = true;
} else {
// Look for pre-defined expression tokens
for ( var i = 0; i < jQuery.token.length; i += 2 ) {
// Attempt to match each, individual, token in
// the specified order
var re = jQuery.token[i];
var m = re.exec(t);

// If the token match was found
if ( m ) {
// Map it against the token's handler
r = ret = jQuery.map( ret, jQuery.isFunction( jQuery.token[i+1] ) ?
jQuery.token[i+1] :
function(a){ return eval(jQuery.token[i+1]); });

// And remove the token
t = jQuery.trim( t.replace( re, "" ) );
foundToken = true;
break;
}
}
}

// See if there's still an expression, and that we haven't already
// matched a token
if ( t && !foundToken ) {
// Handle multiple expressions
if ( !t.indexOf(",") ) {
// Clean the result set
if ( ret[0] == context ) ret.shift();

// Merge the result sets
jQuery.merge( done, ret );

// Reset the context
r = ret = [context];

// Touch up the selector string
t = " " + t.substr(1,t.length);

} else {
// Optomize for the case nodeName#idName
var re2 = /^([a-z0-9_-]+)(#)([a-z0-9//*_-]*)/i;
var m = re2.exec(t);

// Re-organize the results, so that they're consistent
if ( m ) {
m = [ 0, m[2], m[3], m[1] ];

} else {
// Otherwise, do a traditional filter check for
// ID, class, and element selectors
re2 = /^([#.]?)([a-z0-9//*_-]*)/i;
m = re2.exec(t);
}

// Try to do a global search by ID, where we can
if ( m[1] == "#" && ret[ret.length-1].getElementById ) {
// Optimization for HTML document case
var oid = ret[ret.length-1].getElementById(m[2]);

// Do a quick check for the existence of the actual ID attribute
// to avoid selecting by the name attribute in IE
if ( jQuery.browser.msie && oid && oid.id != m[2] )
oid = jQuery('[@id="'+m[2]+'"]', ret[ret.length-1])[0];

// Do a quick check for node name (where applicable) so
// that div#foo searches will be really fast
ret = r = oid && (!m[3] || jQuery.nodeName(oid, m[3])) ? [oid] : [];

} else {
// Pre-compile a regular expression to handle class searches
if ( m[1] == "." )
var rec = new RegExp("(^|//s)" + m[2] + "(//s|$)");

// We need to find all descendant elements, it is more
// efficient to use getAll() when we are already further down
// the tree - we try to recognize that here
jQuery.each( ret, function(){
// Grab the tag name being searched for
var tag = m[1] != "" || m[0] == "" ? "*" : m[2];

// Handle IE7 being really dumb about <object>s
if ( jQuery.nodeName(this, "object") && tag == "*" )
tag = "param";

jQuery.merge( r,
m[1] != "" && ret.length != 1 ?
jQuery.getAll( this, [], m[1], m[2], rec ) :
this.getElementsByTagName( tag )
);
});

// It's faster to filter by class and be done with it
if ( m[1] == "." && ret.length == 1 )
r = jQuery.grep( r, function(e) {
return rec.test(e.className);
});

// Same with ID filtering
if ( m[1] == "#" && ret.length == 1 ) {
// Remember, then wipe out, the result set
var tmp = r;
r = [];

// Then try to find the element with the ID
jQuery.each( tmp, function(){
if ( this.getAttribute("id") == m[2] ) {
r = [ this ];
return false;
}
});
}

ret = r;
}

t = t.replace( re2, "" );
}

}

// If a selector string still exists
if ( t ) {
// Attempt to filter it
var val = jQuery.filter(t,r);
ret = r = val.r;
t = jQuery.trim(val.t);
}
}

// Remove the root context
if ( ret && ret[0] == context ) ret.shift();

// And combine the results
jQuery.merge( done, ret );

return done;
},

filter: function(t,r,not) {
// Look for common filter expressions
while ( t && /^[a-z[({<*:.#]/i.test(t) ) {

var p = jQuery.parse, m;

jQuery.each( p, function(i,re){

// Look for, and replace, string-like sequences
// and finally build a regexp out of it
m = re.exec( t );

if ( m ) {
// Remove what we just matched
t = t.substring( m[0].length );

// Re-organize the first match
if ( jQuery.expr[ m[1] ]._resort )
m = jQuery.expr[ m[1] ]._resort( m );

return false;
}
});

// :not() is a special case that can be optimized by
// keeping it out of the expression list
if ( m[1] == ":" && m[2] == "not" )
r = jQuery.filter(m[3], r, true).r;

// Handle classes as a special case (this will help to
// improve the speed, as the regexp will only be compiled once)
else if ( m[1] == "." ) {

var re = new RegExp("(^|//s)" + m[2] + "(//s|$)");
r = jQuery.grep( r, function(e){
return re.test(e.className || "");
}, not);

// Otherwise, find the expression to execute
} else {
var f = jQuery.expr[m[1]];
if ( typeof f != "string" )
f = jQuery.expr[m[1]][m[2]];

// Build a custom macro to enclose it
eval("f = function(a,i){" +
( jQuery.expr[ m[1] ]._prefix || "" ) +
"return " + f + "}");

// Execute it against the current filter
r = jQuery.grep( r, f, not );
}
}

// Return an array of filtered elements (r)
// and the modified expression string (t)
return { r: r, t: t };
},

getAll: function( o, r, token, name, re ) {
for ( var s = o.firstChild; s; s = s.nextSibling )
if ( s.nodeType == 1 ) {
var add = true;

if ( token == "." )
add = s.className && re.test(s.className);
else if ( token == "#" )
add = s.getAttribute("id") == name;

if ( add )
r.push( s );

if ( token == "#" && r.length ) break;

if ( s.firstChild )
jQuery.getAll( s, r, token, name, re );
}

return r;
},
parents: function( elem ){
var matched = [];
var cur = elem.parentNode;
while ( cur && cur != document ) {
matched.push( cur );
cur = cur.parentNode;
}
return matched;
},
nth: function(cur,result,dir,elem){
result = result || 1;
var num = 0;
for ( ; cur; cur = cur[dir] ) {
if ( cur.nodeType == 1 ) num++;
if ( num == result || result == "even" && num % 2 == 0 && num > 1 && cur == elem ||
result == "odd" && num % 2 == 1 && cur == elem ) return cur;
}
},
sibling: function( n, elem ) {
var r = [];

for ( ; n; n = n.nextSibling ) {
if ( n.nodeType == 1 && (!elem || n != elem) )
r.push( n );
}

return r;
}
});
/*
* A number of helper functions used for managing events.
* Many of the ideas behind this code orignated from
* Dean Edwards' addEvent library.
*/
jQuery.event = {

// Bind an event to an element
// Original by Dean Edwards
add: function(element, type, handler, data) {
// For whatever reason, IE has trouble passing the window object
// around, causing it to be cloned in the process
if ( jQuery.browser.msie && element.setInterval != undefined )
element = window;

// if data is passed, bind to handler
if( data )
handler.data = data;

// Make sure that the function being executed has a unique ID
if ( !handler.guid )
handler.guid = this.guid++;

// Init the element's event structure
if (!element.$events)
element.$events = {};

// Get the current list of functions bound to this event
var handlers = element.$events[type];

// If it hasn't been initialized yet
if (!handlers) {
// Init the event handler queue
handlers = element.$events[type] = {};

// Remember an existing handler, if it's already there
if (element["on" + type])
handlers[0] = element["on" + type];
}

// Add the function to the element's handler list
handlers[handler.guid] = handler;

// And bind the global event handler to the element
element["on" + type] = this.handle;

// Remember the function in a global list (for triggering)
if (!this.global[type])
this.global[type] = [];
this.global[type].push( element );
},

guid: 1,
global: {},

// Detach an event or set of events from an element
remove: function(element, type, handler) {
if (element.$events) {
var i,j,k;
if ( type && type.type ) { // type is actually an event object here
handler = type.handler;
type = type.type;
}

if (type && element.$events[type])
// remove the given handler for the given type
if ( handler )
delete element.$events[type][handler.guid];

// remove all handlers for the given type
else
for ( i in element.$events[type] )
delete element.$events[type][i];

// remove all handlers
else
for ( j in element.$events )
this.remove( element, j );

// remove event handler if no more handlers exist
for ( k in element.$events[type] )
if (k) {
k = true;
break;
}
if (!k) element["on" + type] = null;
}
},

trigger: function(type, data, element) {
// Clone the incoming data, if any
data = jQuery.makeArray(data || []);

// Handle a global trigger
if ( !element )
jQuery.each( this.global[type] || [], function(){
jQuery.event.trigger( type, data, this );
});

// Handle triggering a single element
else {
var handler = element["on" + type ], val,
fn = jQuery.isFunction( element[ type ] );

if ( handler ) {
// Pass along a fake event
data.unshift( this.fix({ type: type, target: element }) );

// Trigger the event
if ( (val = handler.apply( element, data )) !== false )
this.triggered = true;
}

if ( fn && val !== false )
element[ type ]();

this.triggered = false;
}
},

handle: function(event) {
// Handle the second event of a trigger and when
// an event is called after a page has unloaded
if ( typeof jQuery == "undefined" || jQuery.event.triggered ) return;

// Empty object is for triggered events with no data
event = jQuery.event.fix( event || window.event || {} );

// returned undefined or false
var returnValue;

var c = this.$events[event.type];

var args = [].slice.call( arguments, 1 );
args.unshift( event );

for ( var j in c ) {
// Pass in a reference to the handler function itself
// So that we can later remove it
args[0].handler = c[j];
args[0].data = c[j].data;

if ( c[j].apply( this, args ) === false ) {
event.preventDefault();
event.stopPropagation();
returnValue = false;
}
}

// Clean up added properties in IE to prevent memory leak
if (jQuery.browser.msie) event.target = event.preventDefault = event.stopPropagation = event.handler = event.data = null;

return returnValue;
},

fix: function(event) {
// Fix target property, if necessary
if ( !event.target && event.srcElement )
event.target = event.srcElement;

// Calculate pageX/Y if missing and clientX/Y available
if ( event.pageX == undefined && event.clientX != undefined ) {
var e = document.documentElement, b = document.body;
event.pageX = event.clientX + (e.scrollLeft || b.scrollLeft);
event.pageY = event.clientY + (e.scrollTop || b.scrollTop);
}

// check if target is a textnode (safari)
if (jQuery.browser.safari && event.target.nodeType == 3) {
// store a copy of the original event object
// and clone because target is read only
var originalEvent = event;
event = jQuery.extend({}, originalEvent);

// get parentnode from textnode
event.target = originalEvent.target.parentNode;

// add preventDefault and stopPropagation since
// they will not work on the clone
event.preventDefault = function() {
return originalEvent.preventDefault();
};
event.stopPropagation = function() {
return originalEvent.stopPropagation();
};
}

// fix preventDefault and stopPropagation
if (!event.preventDefault)
event.preventDefault = function() {
this.returnValue = false;
};

if (!event.stopPropagation)
event.stopPropagation = function() {
this.cancelBubble = true;
};

return event;
}
};

jQuery.fn.extend({
bind: function( type, data, fn ) {
return this.each(function(){
jQuery.event.add( this, type, fn || data, data );
});
},
one: function( type, data, fn ) {
return this.each(function(){
jQuery.event.add( this, type, function(event) {
jQuery(this).unbind(event);
return (fn || data).apply( this, arguments);
}, data);
});
},
unbind: function( type, fn ) {
return this.each(function(){
jQuery.event.remove( this, type, fn );
});
},
trigger: function( type, data ) {
return this.each(function(){
jQuery.event.trigger( type, data, this );
});
},
toggle: function() {
// Save reference to arguments for access in closure
var a = arguments;

return this.click(function(e) {
// Figure out which function to execute
this.lastToggle = this.lastToggle == 0 ? 1 : 0;

// Make sure that clicks stop
e.preventDefault();

// and execute the function
return a[this.lastToggle].apply( this, [e] ) || false;
});
},
hover: function(f,g) {

// A private function for handling mouse 'hovering'
function handleHover(e) {
// Check if mouse(over|out) are still within the same parent element
var p = (e.type == "mouseover" ? e.fromElement : e.toElement) || e.relatedTarget;

// Traverse up the tree
while ( p && p != this ) try { p = p.parentNode } catch(e) { p = this; };

// If we actually just moused on to a sub-element, ignore it
if ( p == this ) return false;

// Execute the right function
return (e.type == "mouseover" ? f : g).apply(this, [e]);
}

// Bind the function to the two event listeners
return this.mouseover(handleHover).mouseout(handleHover);
},
ready: function(f) {
// If the DOM is already ready
if ( jQuery.isReady )
// Execute the function immediately
f.apply( document, [jQuery] );

// Otherwise, remember the function for later
else {
// Add the function to the wait list
jQuery.readyList.push( function() { return f.apply(this, [jQuery]) } );
}

return this;
}
});

jQuery.extend({
/*
* All the code that makes DOM Ready work nicely.
*/
isReady: false,
readyList: [],

// Handle when the DOM is ready
ready: function() {
// Make sure that the DOM is not already loaded
if ( !jQuery.isReady ) {
// Remember that the DOM is ready
jQuery.isReady = true;

// If there are functions bound, to execute
if ( jQuery.readyList ) {
// Execute all of them
jQuery.each( jQuery.readyList, function(){
this.apply( document );
});

// Reset the list of functions
jQuery.readyList = null;
}
// Remove event lisenter to avoid memory leak
if ( jQuery.browser.mozilla || jQuery.browser.opera )
document.removeEventListener( "DOMContentLoaded", jQuery.ready, false );
}
}
});

new function(){

jQuery.each( ("blur,focus,load,resize,scroll,unload,click,dblclick," +
"mousedown,mouseup,mousemove,mouseover,mouseout,change,select," +
"submit,keydown,keypress,keyup,error").split(","), function(i,o){

// Handle event binding
jQuery.fn[o] = function(f){
return f ? this.bind(o, f) : this.trigger(o);
};

});

// If Mozilla is used
if ( jQuery.browser.mozilla || jQuery.browser.opera )
// Use the handy event callback
document.addEventListener( "DOMContentLoaded", jQuery.ready, false );

// If IE is used, use the excellent hack by Matthias Miller
// http://www.outofhanwell.com/blog/index.php?title=the_window_onload_problem_revisited
else if ( jQuery.browser.msie ) {

// Only works if you document.write() it
document.write("<scr" + "ipt id=__ie_init defer=true " +
"src=//:><//script>");

// Use the defer script hack
var script = document.getElementById("__ie_init");

// script does not exist if jQuery is loaded dynamically
if ( script )
script.onreadystatechange = function() {
if ( this.readyState != "complete" ) return;
this.parentNode.removeChild( this );
jQuery.ready();
};

// Clear from memory
script = null;

// If Safari is used
} else if ( jQuery.browser.safari )
// Continually check to see if the document.readyState is valid
jQuery.safariTimer = setInterval(function(){
// loaded and complete are both valid states
if ( document.readyState == "loaded" ||
document.readyState == "complete" ) {

// If either one are found, remove the timer
clearInterval( jQuery.safariTimer );
jQuery.safariTimer = null;

// and execute any waiting functions
jQuery.ready();
}
}, 10);

// A fallback to window.onload, that will always work
jQuery.event.add( window, "load", jQuery.ready );

};

// Clean up after IE to avoid memory leaks
if (jQuery.browser.msie)
jQuery(window).one("unload", function() {
var global = jQuery.event.global;
for ( var type in global ) {
var els = global[type], i = els.length;
if ( i && type != 'unload' )
do
jQuery.event.remove(els[i-1], type);
while (--i);
}
});
jQuery.fn.extend({
loadIfModified: function( url, params, callback ) {
this.load( url, params, callback, 1 );
},
load: function( url, params, callback, ifModified ) {
if ( jQuery.isFunction( url ) )
return this.bind("load", url);

callback = callback || function(){};

// Default to a GET request
var type = "GET";

// If the second parameter was provided
if ( params )
// If it's a function
if ( jQuery.isFunction( params ) ) {
// We assume that it's the callback
callback = params;
params = null;

// Otherwise, build a param string
} else {
params = jQuery.param( params );
type = "POST";
}

var self = this;

// Request the remote document
jQuery.ajax({
url: url,
type: type,
data: params,
ifModified: ifModified,
complete: function(res, status){
if ( status == "success" || !ifModified && status == "notmodified" )
// Inject the HTML into all the matched elements
self.attr("innerHTML", res.responseText)
// Execute all the scripts inside of the newly-injected HTML
.evalScripts()
// Execute callback
.each( callback, [res.responseText, status, res] );
else
callback.apply( self, [res.responseText, status, res] );
}
});
return this;
},
serialize: function() {
return jQuery.param( this );
},
evalScripts: function() {
return this.find("script").each(function(){
if ( this.src )
jQuery.getScript( this.src );
else
jQuery.globalEval( this.text || this.textContent || this.innerHTML || "" );
}).end();
}

});

// If IE is used, create a wrapper for the XMLHttpRequest object
if ( !window.XMLHttpRequest )
XMLHttpRequest = function(){
return new ActiveXObject("Microsoft.XMLHTTP");
};

// Attach a bunch of functions for handling common AJAX events

jQuery.each( "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess,ajaxSend".split(","), function(i,o){
jQuery.fn[o] = function(f){
return this.bind(o, f);
};
});

jQuery.extend({
get: function( url, data, callback, type, ifModified ) {
// shift arguments if data argument was ommited
if ( jQuery.isFunction( data ) ) {
callback = data;
data = null;
}

return jQuery.ajax({
url: url,
data: data,
success: callback,
dataType: type,
ifModified: ifModified
});
},
getIfModified: function( url, data, callback, type ) {
return jQuery.get(url, data, callback, type, 1);
},
getScript: function( url, callback ) {
return jQuery.get(url, null, callback, "script");
},
getJSON: function( url, data, callback ) {
return jQuery.get(url, data, callback, "json");
},
post: function( url, data, callback, type ) {
if ( jQuery.isFunction( data ) ) {
callback = data;
data = {};
}

return jQuery.ajax({
type: "POST",
url: url,
data: data,
success: callback,
dataType: type
});
},

// timeout (ms)
//timeout: 0,
ajaxTimeout: function( timeout ) {
jQuery.ajaxSettings.timeout = timeout;
},
ajaxSetup: function( settings ) {
jQuery.extend( jQuery.ajaxSettings, settings );
},

ajaxSettings: {
global: true,
type: "GET",
timeout: 0,
contentType: "application/x-www-form-urlencoded",
processData: true,
async: true,
data: null
},

// Last-Modified header cache for next request
lastModified: {},
ajax: function( s ) {
// TODO introduce global settings, allowing the client to modify them for all requests, not only timeout
s = jQuery.extend({}, jQuery.ajaxSettings, s);

// if data available
if ( s.data ) {
// convert data if not already a string
if (s.processData && typeof s.data != "string")
s.data = jQuery.param(s.data);
// append data to url for get requests
if( s.type.toLowerCase() == "get" ) {
// "?" + data or "&" + data (in case there are already params)
s.url += ((s.url.indexOf("?") > -1) ? "&" : "?") + s.data;
// IE likes to send both get and post data, prevent this
s.data = null;
}
}

// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
jQuery.event.trigger( "ajaxStart" );

var requestDone = false;

// Create the request object
var xml = new XMLHttpRequest();

// Open the socket
xml.open(s.type, s.url, s.async);

// Set the correct header, if data is being sent
if ( s.data )
xml.setRequestHeader("Content-Type", s.contentType);

// Set the If-Modified-Since header, if ifModified mode.
if ( s.ifModified )
xml.setRequestHeader("If-Modified-Since",
jQuery.lastModified[s.url] || "Thu, 01 Jan 1970 00:00:00 GMT" );

// Set header so the called script knows that it's an XMLHttpRequest
xml.setRequestHeader("X-Requested-With", "XMLHttpRequest");

// Make sure the browser sends the right content length
if ( xml.overrideMimeType )
xml.setRequestHeader("Connection", "close");

// Allow custom headers/mimetypes
if( s.beforeSend )
s.beforeSend(xml);

if ( s.global )
jQuery.event.trigger("ajaxSend", [xml, s]);

// Wait for a response to come back
var onreadystatechange = function(isTimeout){
// The transfer is complete and the data is available, or the request timed out
if ( xml && (xml.readyState == 4 || isTimeout == "timeout") ) {
requestDone = true;

// clear poll interval
if (ival) {
clearInterval(ival);
ival = null;
}

var status;
try {
status = jQuery.httpSuccess( xml ) && isTimeout != "timeout" ?
s.ifModified && jQuery.httpNotModified( xml, s.url ) ? "notmodified" : "success" : "error";
// Make sure that the request was successful or notmodified
if ( status != "error" ) {
// Cache Last-Modified header, if ifModified mode.
var modRes;
try {
modRes = xml.getResponseHeader("Last-Modified");
} catch(e) {} // swallow exception thrown by FF if header is not available

if ( s.ifModified && modRes )
jQuery.lastModified[s.url] = modRes;

// process the data (runs the xml through httpData regardless of callback)
var data = jQuery.httpData( xml, s.dataType );

// If a local callback was specified, fire it and pass it the data
if ( s.success )
s.success( data, status );

// Fire the global callback
if( s.global )
jQuery.event.trigger( "ajaxSuccess", [xml, s] );
} else
jQuery.handleError(s, xml, status);
} catch(e) {
status = "error";
jQuery.handleError(s, xml, status, e);
}

// The request was completed
if( s.global )
jQuery.event.trigger( "ajaxComplete", [xml, s] );

// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );

// Process result
if ( s.complete )
s.complete(xml, status);

// Stop memory leaks
if(s.async)
xml = null;
}
};

// don't attach the handler to the request, just poll it instead
var ival = setInterval(onreadystatechange, 13);

// Timeout checker
if ( s.timeout > 0 )
setTimeout(function(){
// Check to see if the request is still happening
if ( xml ) {
// Cancel the request
xml.abort();

if( !requestDone )
onreadystatechange( "timeout" );
}
}, s.timeout);

// Send the data
try {
xml.send(s.data);
} catch(e) {
jQuery.handleError(s, xml, null, e);
}

// firefox 1.5 doesn't fire statechange for sync requests
if ( !s.async )
onreadystatechange();

// return XMLHttpRequest to allow aborting the request etc.
return xml;
},

handleError: function( s, xml, status, e ) {
// If a local callback was specified, fire it
if ( s.error ) s.error( xml, status, e );

// Fire the global callback
if ( s.global )
jQuery.event.trigger( "ajaxError", [xml, s, e] );
},

// Counter for holding the number of active queries
active: 0,

// Determines if an XMLHttpRequest was successful or not
httpSuccess: function( r ) {
try {
return !r.status && location.protocol == "file:" ||
( r.status >= 200 && r.status < 300 ) || r.status == 304 ||
jQuery.browser.safari && r.status == undefined;
} catch(e){}
return false;
},

// Determines if an XMLHttpRequest returns NotModified
httpNotModified: function( xml, url ) {
try {
var xmlRes = xml.getResponseHeader("Last-Modified");

// Firefox always returns 200. check Last-Modified date
return xml.status == 304 || xmlRes == jQuery.lastModified[url] ||
jQuery.browser.safari && xml.status == undefined;
} catch(e){}
return false;
},

/* Get the data out of an XMLHttpRequest.
* Return parsed XML if content-type header is "xml" and type is "xml" or omitted,
* otherwise return plain text.
* (String) data - The type of data that you're expecting back,
* (e.g. "xml", "html", "script")
*/
httpData: function( r, type ) {
var ct = r.getResponseHeader("content-type");
var data = !type && ct && ct.indexOf("xml") >= 0;
data = type == "xml" || data ? r.responseXML : r.responseText;

// If the type is "script", eval it in global context
if ( type == "script" )
jQuery.globalEval( data );

// Get the JavaScript object, if JSON is used.
if ( type == "json" )
eval( "data = " + data );

// evaluate scripts within html
if ( type == "html" )
jQuery("<div>").html(data).evalScripts();

return data;
},

// Serialize an array of form elements or a set of
// key/values into a query string
param: function( a ) {
var s = [];

// If an array was passed in, assume that it is an array
// of form elements
if ( a.constructor == Array || a.jquery )
// Serialize the form elements
jQuery.each( a, function(){
s.push( encodeURIComponent(this.name) + "=" + encodeURIComponent( this.value ) );
});

// Otherwise, assume that it's an object of key/value pairs
else
// Serialize the key/values
for ( var j in a )
// If the value is an array then the key names need to be repeated
if ( a[j] && a[j].constructor == Array )
jQuery.each( a[j], function(){
s.push( encodeURIComponent(j) + "=" + encodeURIComponent( this ) );
});
else
s.push( encodeURIComponent(j) + "=" + encodeURIComponent( a[j] ) );

// Return the resulting serialization
return s.join("&");
},

// evalulates a script in global context
// not reliable for safari
globalEval: function( data ) {
if ( window.execScript )
window.execScript( data );
else if ( jQuery.browser.safari )
// safari doesn't provide a synchronous global eval
window.setTimeout( data, 0 );
else
eval.call( window, data );
}

});
jQuery.fn.extend({

show: function(speed,callback){
var hidden = this.filter(":hidden");
speed ?
hidden.animate({
height: "show", width: "show", opacity: "show"
}, speed, callback) :

hidden.each(function(){
this.style.display = this.oldblock ? this.oldblock : "";
if ( jQuery.css(this,"display") == "none" )
this.style.display = "block";
});
return this;
},

hide: function(speed,callback){
var visible = this.filter(":visible");
speed ?
visible.animate({
height: "hide", width: "hide", opacity: "hide"
}, speed, callback) :

visible.each(function(){
this.oldblock = this.oldblock || jQuery.css(this,"display");
if ( this.oldblock == "none" )
this.oldblock = "block";
this.style.display = "none";
});
return this;
},

// Save the old toggle function
_toggle: jQuery.fn.toggle,
toggle: function( fn, fn2 ){
var args = arguments;
return jQuery.isFunction(fn) && jQuery.isFunction(fn2) ?
this._toggle( fn, fn2 ) :
this.each(function(){
jQuery(this)[ jQuery(this).is(":hidden") ? "show" : "hide" ]
.apply( jQuery(this), args );
});
},
slideDown: function(speed,callback){
return this.animate({height: "show"}, speed, callback);
},
slideUp: function(speed,callback){
return this.animate({height: "hide"}, speed, callback);
},
slideToggle: function(speed, callback){
return this.each(function(){
var state = jQuery(this).is(":hidden") ? "show" : "hide";
jQuery(this).animate({height: state}, speed, callback);
});
},
fadeIn: function(speed, callback){
return this.animate({opacity: "show"}, speed, callback);
},
fadeOut: function(speed, callback){
return this.animate({opacity: "hide"}, speed, callback);
},
fadeTo: function(speed,to,callback){
return this.animate({opacity: to}, speed, callback);
},
animate: function( prop, speed, easing, callback ) {
return this.queue(function(){

this.curAnim = jQuery.extend({}, prop);
var opt = jQuery.speed(speed, easing, callback);

for ( var p in prop ) {
var e = new jQuery.fx( this, opt, p );
if ( prop[p].constructor == Number )
e.custom( e.cur(), prop[p] );
else
e[ prop[p] ]( prop );
}

});
},
queue: function(type,fn){
if ( !fn ) {
fn = type;
type = "fx";
}

return this.each(function(){
if ( !this.queue )
this.queue = {};

if ( !this.queue[type] )
this.queue[type] = [];

this.queue[type].push( fn );

if ( this.queue[type].length == 1 )
fn.apply(this);
});
}

});

jQuery.extend({

speed: function(speed, easing, fn) {
var opt = speed && speed.constructor == Object ? speed : {
complete: fn || !fn && easing ||
jQuery.isFunction( speed ) && speed,
duration: speed,
easing: fn && easing || easing && easing.constructor != Function && easing
};

opt.duration = (opt.duration && opt.duration.constructor == Number ?
opt.duration :
{ slow: 600, fast: 200 }[opt.duration]) || 400;

// Queueing
opt.old = opt.complete;
opt.complete = function(){
jQuery.dequeue(this, "fx");
if ( jQuery.isFunction( opt.old ) )
opt.old.apply( this );
};

return opt;
},

easing: {},

queue: {},

dequeue: function(elem,type){
type = type || "fx";

if ( elem.queue && elem.queue[type] ) {
// Remove self
elem.queue[type].shift();

// Get next function
var f = elem.queue[type][0];

if ( f ) f.apply( elem );
}
},

/*
* I originally wrote fx() as a clone of moo.fx and in the process
* of making it small in size the code became illegible to sane
* people. You've been warned.
*/

fx: function( elem, options, prop ){

var z = this;

// The styles
var y = elem.style;

// Store display property
var oldDisplay = jQuery.css(elem, "display");

// Make sure that nothing sneaks out
y.overflow = "hidden";

// Simple function for setting a style value
z.a = function(){
if ( options.step )
options.step.apply( elem, [ z.now ] );

if ( prop == "opacity" )
jQuery.attr(y, "opacity", z.now); // Let attr handle opacity
else if ( parseInt(z.now) ) // My hate for IE will never die
y[prop] = parseInt(z.now) + "px";

y.display = "block"; // Set display property to block for animation
};

// Figure out the maximum number to run to
z.max = function(){
return parseFloat( jQuery.css(elem,prop) );
};

// Get the current size
z.cur = function(){
var r = parseFloat( jQuery.curCSS(elem, prop) );
return r && r > -10000 ? r : z.max();
};

// Start an animation from one number to another
z.custom = function(from,to){
z.startTime = (new Date()).getTime();
z.now = from;
z.a();

z.timer = setInterval(function(){
z.step(from, to);
}, 13);
};

// Simple 'show' function
z.show = function(){
if ( !elem.orig ) elem.orig = {};

// Remember where we started, so that we can go back to it later
elem.orig[prop] = this.cur();

options.show = true;

// Begin the animation
z.custom(0, elem.orig[prop]);

// Stupid IE, look what you made me do
if ( prop != "opacity" )
y[prop] = "1px";
};

// Simple 'hide' function
z.hide = function(){
if ( !elem.orig ) elem.orig = {};

// Remember where we started, so that we can go back to it later
elem.orig[prop] = this.cur();

options.hide = true;

// Begin the animation
z.custom(elem.orig[prop], 0);
};

//Simple 'toggle' function
z.toggle = function() {
if ( !elem.orig ) elem.orig = {};

// Remember where we started, so that we can go back to it later
elem.orig[prop] = this.cur();

if(oldDisplay == "none") {
options.show = true;

// Stupid IE, look what you made me do
if ( prop != "opacity" )
y[prop] = "1px";

// Begin the animation
z.custom(0, elem.orig[prop]);
} else {
options.hide = true;

// Begin the animation
z.custom(elem.orig[prop], 0);
}
};

// Each step of an animation
z.step = function(firstNum, lastNum){
var t = (new Date()).getTime();

if (t > options.duration + z.startTime) {
// Stop the timer
clearInterval(z.timer);
z.timer = null;

z.now = lastNum;
z.a();

if (elem.curAnim) elem.curAnim[ prop ] = true;

var done = true;
for ( var i in elem.curAnim )
if ( elem.curAnim[i] !== true )
done = false;

if ( done ) {
// Reset the overflow
y.overflow = "";

// Reset the display
y.display = oldDisplay;
if (jQuery.css(elem, "display") == "none")
y.display = "block";

// Hide the element if the "hide" operation was done
if ( options.hide )
y.display = "none";

// Reset the properties, if the item has been hidden or shown
if ( options.hide || options.show )
for ( var p in elem.curAnim )
if (p == "opacity")
jQuery.attr(y, p, elem.orig[p]);
else
y[p] = "";
}

// If a callback was provided, execute it
if ( done && jQuery.isFunction( options.complete ) )
// Execute the complete function
options.complete.apply( elem );
} else {
var n = t - this.startTime;
// Figure out where in the animation we are and set the number
var p = n / options.duration;

// If the easing function exists, then use it
z.now = options.easing && jQuery.easing[options.easing] ?
jQuery.easing[options.easing](p, n, firstNum, (lastNum-firstNum), options.duration) :
// else use default linear easing
((-Math.cos(p*Math.PI)/2) + 0.5) * (lastNum-firstNum) + firstNum;

// Perform the next step of the animation
z.a();
}
};

}
});
}

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