数字金额转换汉字金额

 // 数字金额转换汉字金额
 function atoc(numberValue){
  
  var numberValue=new String(Math.round(numberValue*100)); // 数字金额
  var chineseValue="";          // 转换后的汉字金额
  var String1 = "零壹贰叁肆伍陆柒捌玖";       // 汉字数字
  var String2 = "万仟佰拾亿仟佰拾万仟佰拾元角分";     // 对应单位
  var len=numberValue.length;         // numberValue 的字符串长度
  var Ch1;             // 数字的汉语读法
  var Ch2;             // 数字位的汉字读法
  var nZero=0;            // 用来计算连续的零值的个数
  var String3;            // 指定位置的数值
  if(len>15){
   alert("超出计算范围");
   return "";
  }
  if (numberValue==0){
   
   chineseValue = "零元整";
   return chineseValue;
   
  }
  
  String2 = String2.substr(String2.length-len, len);   // 取出对应位数的STRING2的值
  
  for(var i=0; i<len; i++){
   
   String3 = parseInt(numberValue.substr(i, 1),10);   // 取出需转换的某一位的值
   //alert(String3);
   if ( i != (len - 3) && i != (len - 7) && i != (len - 11) && i !=(len - 15) ){
    
    if ( String3 == 0 ){
     
     Ch1 = "";
     Ch2 = "";
     nZero = nZero + 1;
     
    }else if ( String3 != 0 && nZero != 0 ){
     
     Ch1 = "零" + String1.substr(String3, 1);
     Ch2 = String2.substr(i, 1);
     nZero = 0;
     
    }else{
     
     Ch1 = String1.substr(String3, 1);
     Ch2 = String2.substr(i, 1);
     nZero = 0;
    }
   }else{              // 该位是万亿，亿，万，元位等关键位
    if( String3 != 0 && nZero != 0 ){
     
     Ch1 = "零" + String1.substr(String3, 1);
     Ch2 = String2.substr(i, 1);
     nZero = 0;
     
    }else if ( String3 != 0 && nZero == 0 ){
     
     Ch1 = String1.substr(String3, 1);
     Ch2 = String2.substr(i, 1);
     nZero = 0;
     
    }else if( String3 == 0 && nZero >= 3 ){
     
     Ch1 = "";
     Ch2 = "";
     nZero = nZero + 1;
     
    }else{
     
     Ch1 = "";
     Ch2 = String2.substr(i, 1);
     nZero = nZero + 1;
     
    }
    
    if( i == (len - 11) || i == (len - 3)) {    // 如果该位是亿位或元位，则必须写上
     Ch2 = String2.substr(i, 1);
    }
    
   }
   chineseValue = chineseValue + Ch1 + Ch2;
   
  }
  
  if ( String3 == 0 ){           // 最后一位（分）为0时，加上“整”
   chineseValue = chineseValue + "整";
  }
  
  return chineseValue;
 }