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jquery实现 购物车 信息 级联改变

HtmlJSJqueryshopping 
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<!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> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 
<title>jQuery</title> 
<link rel="stylesheet" type="text/css" href="style.css" /> 
<script src="http://www.google.com/jsapi" type="text/javascript"></script> 
<script type="text/javascript"> 
google.load("jquery", "1.2.6"); 
</script> 
<script type="text/javascript" src="order.js"></script> 
</head> 
<body> 
<table id="order-table"> 
<tr> 
<th>Product Name</th> 
<th>Quantity</th> 
<th>X</th> 
<th>Unit Price</th> 
<th>=</th> 
<th style="text-align: right;">Totals</th> 
</tr> 
<tr class="odd"> 
<td class="product-title">www.corange.cn<em></em></td> 
<td class="num-pallets"> 
<input type="text" class="num-pallets-input" id="turface-pro-league-num-pallets" > 
</input> 
</td> 
<td class="times">X</td> 
<td class="price-per-pallet">$<span>340</span></td> 
<td class="equals">=</td> 
<td class="row-total"> 
<input type="text" class="row-total-input" id="turface-pro-league-row-total" disabled="disabled"> 
</input> 
</td> 
</tr> 
<tr class="even"> 
<td class="product-title"><p>Turface&reg; Pro League Red - <em>Calcined Clay Top Dressinged</em></p>
  <p>&nbsp;</p></td> 
<td class="num-pallets"> 
<input type="text" class="num-pallets-input" id="turface-pro-league-red-num-pallets"> 
</input> 
</td> 
<td class="times">X</td> 
<td class="price-per-pallet">$<span>455</span></td> 
<td class="equals">=</td> 
<td class="row-total"> 
<input type="text" class="row-total-input" id="turface-pro-league-red-row-total" disabled="disabled"> 
</input> 
</td> 
</tr> 
<tr class="odd"> 
<td class="product-title">Turface&reg; Quick Dry - <em>Calcined Clay Moisture Absorbent</em></td> 
<td class="num-pallets"> 
<input type="text" class="num-pallets-input" id="turface-quick-dry-num-pallets" > 
</input> 
</td> 
<td class="times">X</td> 
<td class="price-per-pallet">$<span>100</span></td> 
<td class="equals">=</td> 
<td class="row-total"> 
<input type="text" class="row-total-input" id="turface-quick-dry-row-total" disabled="disabled"> 
</input> 
</td> 
</tr> 
<tr class="even"> 
<td class="product-title">Turface&reg; Mound Clay Red - <em>Virgin Red Clay</em></td> 
<td class="num-pallets"> 
<input type="text" class="num-pallets-input" id="turface-mound-clay-red-num-pallets"> 
</input> 
</td> 
<td class="times">X</td> 
<td class="price-per-pallet">$<span>40</span></td> 
<td class="equals">=</td> 
<td class="row-total"> 
<input type="text" class="row-total-input" id="turface-mound-clay-red-row-total" disabled="disabled"> 
</input> 
</td> 
</tr> 
<tr class="odd"> 
<td class="product-title">Red Infield Conditioner - <em>Vitrified Clay Top Dressing</em></td> 
<td class="num-pallets"> 
<input type="text" class="num-pallets-input" id="diamond-pro-red-num-pallets" > 
</input> 
</td> 
<td class="times">X</td> 
<td class="price-per-pallet">$<span>35</span></td> 
<td class="equals">=</td> 
<td class="row-total"> 
<input type="text" class="row-total-input" id="diamond-pro-red-row-total" disabled="disabled"> 
</input> 
</td> 
</tr> 
<tr class="even"> 
<td class="product-title">Drying Agent - <em>Calcined Clay Moisture Absorbent</em></td> 
<td class="num-pallets"> 
<input type="text" class="num-pallets-input" id="diamond-pro-drying-agent-num-pallets"> 
</input> 
</td> 
<td class="times">X</td> 
<td class="price-per-pallet">$<span>340</span></td> 
<td class="equals">=</td> 
<td class="row-total"> 
<input type="text" class="row-total-input" id="diamond-pro-drying-agent-row-total" disabled="disabled"> 
</input> 
</td> 
</tr> 
<tr class="odd"> 
<td class="product-title">Professional - <em>Calcined Clay Top Dressing</em></td> 
<td class="num-pallets"> 
<input type="text" class="num-pallets-input" id="diamond-pro-professional-num-pallets" > 
</input> 
</td> 
<td class="times">X</td> 
<td class="price-per-pallet">$<span>75</span></td> 
<td class="equals">=</td> 
<td class="row-total"> 
<input type="text" class="row-total-input" id="diamond-pro-professional-row-total" disabled="disabled"> 
</input> 
</td> 
</tr> 
<tr class="even"> 
<td class="product-title">Top Dressing - <em>Calcined Clay Soil Conditioner</em></td> 
<td class="num-pallets"> 
<input type="text" class="num-pallets-input" id="diamond-pro-top-dressing-num-pallets"> 
</input> 
</td> 
<td class="times">X</td> 
<td class="price-per-pallet">$<span>30</span></td> 
<td class="equals">=</td> 
<td class="row-total"> 
<input type="text" class="row-total-input" id="diamond-pro-top-dressing-row-total" disabled="disabled"> 
</input> 
</td> 
</tr> 
<tr> 
<td colspan="6" style="text-align: right;"> Product SUBTOTAL: 
<input type="text" class="total-box" id="product-subtotal" disabled="disabled"> 
</input> 
</td> 
</tr> 
</table> 
</body> 
</html>

 

function IsNumeric(sText) 

{ 
var ValidChars = "0123456789."; 
var IsNumber=true; 
var Char; 


for (i = 0; i < sText.length && IsNumber == true; i++) 
{ 
Char = sText.charAt(i); 
if (ValidChars.indexOf(Char) == -1) 
{ 
IsNumber = false; 
} 
} 
return IsNumber; 

}; 

function calcProdSubTotal() { 

var prodSubTotal = 0; 

$(".row-total-input").each(function(){ 

var valString = $(this).val() || 0; 

prodSubTotal += parseInt(valString); 

}); 

$("#product-subtotal").val(prodSubTotal); 

}; 

function calcTotalPallets() { 

var totalPallets = 0; 

$(".num-pallets-input").each(function() { 

var thisValue = $(this).val(); 

if ( (IsNumeric(thisValue)) && (thisValue != '') ) { 

totalPallets += parseInt(thisValue); 

}; 

}); 

$("#total-pallets-input").val(totalPallets); 

}; 

function calcShippingTotal() { 

var totalPallets = $("#total-pallets-input").val() || 0; 
var shippingRate = $("#shipping-rate").text() || 0; 
var shippingTotal = totalPallets * shippingRate; 

$("#shipping-subtotal").val(shippingTotal); 

}; 

function calcOrderTotal() { 

var orderTotal = 0; 

var productSubtotal = $("#product-subtotal").val() || 0; 
var shippingSubtotal = $("#shipping-subtotal").val() || 0; 

var orderTotal = parseInt(productSubtotal) + parseInt(shippingSubtotal); 
var orderTotalNice = "$" + orderTotal; 

$("#order-total").val(orderTotalNice); 

}; 

$(function(){ 

$('.num-pallets-input').blur(function(){ 

var $this = $(this); 

var numPallets = $this.val(); 
var multiplier = $this 
.parent().parent() 
.find("td.price-per-pallet span") 
.text(); 

if ( (IsNumeric(numPallets)) && (numPallets != '') ) { 

var rowTotal = numPallets * multiplier; 

$this 
.css("background-color", "white") 
.parent().parent() 
.find("td.row-total input") 
.val(rowTotal); 

} else { 

$this.css("background-color", "#ffdcdc"); 

}; 

calcProdSubTotal(); 
calcTotalPallets(); 
calcShippingTotal(); 
calcOrderTotal(); 

}); 

});

 

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| 发现一款很酷的jquery 相片墙翻牌效果
评论
1 楼 xiaomao67 2013-05-15  
很不错，但是以下这三个方法都没有用处吧？而且还有点小bug，IsNumeric()方法并不能准确判断数字，比如连续输入两个小数点，计算结果就是NAN，总计结果也是nan了。

calcTotalPallets();  
calcShippingTotal();  
calcOrderTotal();
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