如何实现javascript的数据处理？_Java Web开发

如何实现javascript的数据处理？

以下代码：我想实现打开页面后，在当前页面直接显示数额的小写和大写，应该如何修改下面的代码
<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="java.text.*"%>
<%
Float se=new Float(121.25);
%>
<html>
<head>
<script   language="javascript">
  function   toChinese(num){
  var   arr1=new   Array("元","万","亿");
  num=num.toString();
  var   strRtn="";
  if(num.charAt(0)=="-"){
  strRtn+="(<b>负</b>)";
  num=num.substring(1,num.length);
  }
  if(num.length>12){   alert("数值超过千亿，无法识别!");   return   "数值超过千亿，无法识别!";}
  var   ss=num.split(".");
  var   Integer=ss[0];
  var   Float=ss[1];
  var   part=splitFour(Integer);
  var   plen=part.length;
  for(var   i=0;i<plen;i++){
  if(i==0   &&   plen   >   1)   strRtn+=ReadFour(part[i],0)+arr1[plen-1-i];
  else   strRtn+=ReadFour(part[i],1)+arr1[plen-1-i];
  }
  if(!Float   ||   !checkZero(Float))   {
  strRtn+="整"
  }else{
  strRtn+=AfterPoint(Float);
  }
  return   strRtn;
  }

  function   AfterPoint(num){
  var   arr1=new   Array("角","分");
  var   arr2=new   Array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖");
  var   str="";
  for(var   i=0;i<num.length;i++){
  if(num.charAt(i)!="0")
  str+=arr2[num.charAt(i)]+arr1[i];
  else{
  if(i!=num.length-1)   str+="零";
  }
  }
  return   str;
  }
  function   splitFour(num){
  var   len=num.length;
  var   count=Math.ceil(len/4);
  var   arr=new   Array("");
  for(var   i=0;i<count;i++){
  arr[count-i-1]=num.substring(len-4,len);
  len-=4;
  }
  return   arr;
  }

  function   ReadFour(num,iFlag){
  var   arr1=new   Array("","拾","佰","仟");
  var   arr2=new   Array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖");
  num=num.toString();
  var   strRtn="";
  len=num.length
  for(var   i=len-1;i>=0;i--){
  if(num.charAt(len-i-1)!="0")
  strRtn+=arr2[num.charAt(len-i-1)]+arr1[i];
  else{
  if(iFlag!=0   &&   strRtn.charAt(strRtn.length-1)!="零"   &&   checkZero(num.substring(len-i,len)))
    strRtn+="零";
  }
  }
  return   strRtn;
  }
  function   checkZero(str){
  for(var   i=0;i<str.length;i++)
  if(str.charAt(i)!="0")   return   true;
  return   false;
  }
  function   format(num){
  var   tmpVar=Math.round(parseFloat(num,10)*100)/100;
  var   arr=tmpVar.toString().split(".");
  if(arr[1]){
  return   tmpVar+(arr[1].length==1?"0":"");
  }else
  return   tmpVar+".00";
  }
  function   keyPressFlt(src){
  var   e=window.event;
  code=e.keyCode;
  if(code   >=48   &&   code   <=57)   return   true;
  else   if(code   ==   46   &&   src.value.indexOf('.')==-1)   return   true;
  else{     window.event.keyCode=null;   return   false;   }
  }

</script>
<style type="text/css">

</style>

小写金额：<%=se%><br>
大写金额: <%=se_dx%>

</body>
</html>

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