货币输入框

第二步：引用JavaScript(moneyinput.js)文件

<script src="moneyinput.js" type="text/javascript" ></script>

第二步：在需要输入框处，加入以下代码就可以了。

<input type="text"  id="price"  name="price" style="text-align:right" 
					onFocus="nstchange(this)" onKeyUp="nst(this,'ccc')" value="￥0" 
					onBlur="nstblurchange(this)" title="请输入产品价格"/>
	  <!-- 处input用于显示大写人民币
	  	       如不想显示，直接将type="hidden",显示type="text" 
	  -->
	  <input name="ccc" type="hidden" size="55" readonly/>

moneyinput.js

function nst(t,t2)
{
   var stmp = "";
   if(t.value==stmp) return;
   var ms = t.value.replace(/[^\d\.]/g,"").replace(/(\.\d{2}).+$/,"$1").replace(/^0+([1-9])/,"$1").replace(/^0+$/,"0");
   var txt = ms.split(".");
   while(/\d{4}(,|$)/.test(txt[0]))
     txt[0] = txt[0].replace(/(\d)(\d{3}(,|$))/,"$1,$2");
   t.value = stmp = txt[0]+(txt.length>1?"."+txt[1]:"");
   document.getElementById(t2).value = number2num1(ms-0);
}
function number2num1(strg)
{
   var number = Math.round(strg*100)/100;
   number = number.toString(10).split('.');
   var a = number[0];
   if (a.length > 12)
     return "数值超出范围！支持的最大数值为 999999999999.99";
   var e = "零壹贰叁肆伍陆柒捌玖";
   var num1 = "";
   var len = a.length-1;
   for (var i=0 ; i<=len; i++)
    num1 += e.charAt(parseInt(a.charAt(i))) + [["圆","万","亿"][Math.floor((len-i)/4)],"拾","佰","仟"][(len-i)%4];
   if(number.length==2 && number[1]!="")
   {
     var a = number[1];
     for (var i=0 ; i<a.length; i++)
      num1 += e.charAt(parseInt(a.charAt(i))) + ["角","分"][i]; 
   }
   num1 = num1.replace(/零佰|零拾|零仟|零角/g,"零");
   num1 = num1.replace(/零{2,}/g,"零");
   num1 = num1.replace(/零(?=圆|万|亿)/g,"");
   num1 = num1.replace(/亿万/,"亿");
   num1 = num1.replace(/^圆零?/,"");
   if(num1!="" && !/分$/.test(num1))
     num1 += "整";
   return num1;
}
function nstchange(ojb){
//var a_value=document.getElementById(obj).value;
var a_value=ojb.value;
//alert(a_value);
var a_leng=a_value.length;

if(a_leng>0){
//alert(a_value.substr(0,1));
if (a_value.substr(0,1)=="￥"){
//document.all.aaa.value="￥"+document.all.aaa.value;
//alert(a_value.substr(1,a_leng)) ;
//document.getElementById(obj).value=a_value.substr(1,a_leng);
ojb.value=a_value.substr(1,a_leng); 
}
}
}
function nstblurchange(ojb2){
//document.getElementById(obj).value="￥"+document.getElementById(obj).value;
ojb2.value="￥"+ojb2.value;
}