最近用到金额大写的代码，不过在网上找到的往往都是中文金额大写转换“壹贰叁肆伍陆柒捌玖”的那种，而需我要的是英文的，Thousand，Million那种。

baidu && google了一大轮找到了一个VBA版本的代码，加工完善之，成了我现在需要的Javascript版，pub出来请大家指教一下

<script language="javascript" type="text/javascript">
  /*
  Money2Letters - javascript版
  */
  function Id(v){return document.getElementById(v)}
  function funcMoney2Letters(){
         var iNum = Math.round(parseFloat(Id("txtInput").value*100))/100;//保留最后两位小数
   if(!iNum) {Id("divOutput").innerHTML="Error!";return;}
   var arrPlace = new Array( '', ' Thousand ', ' Million ', ' Billion ', ' Trillion ', ' Quadrillion ', ' Quintillion ', ' Sextillion ', ' Septillion ', ' Octillion ', ' Nonillion ', ' Decillion ', ' Undecillion ', ' Duodecillion ' );    
   var strNum = iNum+"";
   Id("txtInput").value = strNum;
   var strInt = strNum;//整数部分
   var idxPoint = strNum.indexOf('.');  
   var Cents = "";
   if(idxPoint>0){//小数部分
     var strCents = strNum.substring(idxPoint+1);
     if(strCents.length == 1) strCents += "0";  
     Cents = funcConvertTens(strCents);     
     strInt = strInt.substring(0,idxPoint);//整数部分
   }   
   var iCount = 0;
   var Dollars = "";   
   while(strInt != ""){
     var Temp   = funcConvertHundreds(strInt.substring(strInt.length - 3));
    if(Temp != "")Dollars = Temp + arrPlace[iCount] + Dollars;
    if(Temp.length > 3){
      strInt = strInt.substring(0,strInt.length -3);
    }
    else
    {
      strInt = "";
    }
    iCount ++;
    if(iCount>=arrPlace.length) break;//数值太大无法处理
   }
   
   var res = "";
   if(Dollars == "One"){
     res = Dollars + " Dollar";
   }
   else if(Dollars != ""){
     res = Dollars + " Dollars";
   }
   if(Cents != "" &amp;&amp; Dollars != "") res += " AND"
   if(Cents == ""){
     res += " Only";    
   }
   else if(Cents == "One"){
     res += " One Cent";  
   }
   else{
     res += " "+Cents+" Cents";
   }
   Id("divOutput").innerHTML = res;
  }
  //处理十位数
  function funcConvertTens(v){
    var vLeft = parseInt(v.substring(0,1));
  var vRight = parseInt(v.substring(1));
  var res = "";
  if(vLeft == 1){
    switch(vRight){
      case 0:res = "Ten";break;
      case 1:res = "Eleven";break;
      case 2:res = "Twelve";break;
      case 3:res = "Thirteen";break;
      case 4:res = "Fourteen";break;
      case 5:res = "Fifteen";break;
      case 6:res = "Sixteen";break;
      case 7:res = "Seventeen";break;
      case 8:res = "Eighteen";break;
      case 9:res = "Nineteen";break;
    }
  }
  else if(vLeft>1){
    switch(vLeft){
      case 2:res = "Twenty";break;
      case 3:res = "Thirty";break;
      case 4:res = "Forty";break;
      case 5:res = "Fifty";break;
      case 6:res = "Sixty";break;
      case 7:res = "Seventy";break;
      case 8:res = "Eighty";break;
      case 9:res = "Ninety";break;
    }
  }
  if(vLeft == 0){
    res = funcConvertDigit(vRight);
  }  
  else if(vLeft>1 &amp;&amp; vRight>0){
    res += "-" + funcConvertDigit(vRight)
  }  
  return res;
  }
  //处理个位数
  function funcConvertDigit(v){
    var res = "";
  switch(v){
    case 1:res = "One";break;
    case 2:res = "Tow";break;
    case 3:res = "Three";break;
    case 4:res = "Four";break;
    case 5:res = "Five";break;
    case 6:res = "Six";break;
    case 7:res = "Seven";break;
    case 8:res = "Eight";break;
    case 9:res = "Nine";break;
  }
  return res;
  }
  //处理百位数
  function funcConvertHundreds(v){
     var res = "";
   var vVal = parseInt(v);   
   if(vVal == 0) return res;
   v = "000"+v;
   v = v.substring(v.length -3)
   vRight = parseInt(v.substr(2,1));
   vLeft = parseInt(v.substr(0,1));
   vMid = parseInt(v.substr(1,1));
   if(vLeft>0){
     if(vMid + vRight > 0) {
      res = funcConvertDigit(vLeft) + " Hundred and ";
    }
    else {
      res = funcConvertDigit(vLeft) + " Hundred ";
    }
   }
   if(vMid>0){
     res += funcConvertTens(vMid + "" + vRight);
   }
   else{
     res += funcConvertDigit(vRight);
   }
   return res;
  }
  </script>

演示地址：http://blog.chenreal.com/demo/money2letter/