JS钱币数字转换中文 _JavaScript

JS货币数字转换中文
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<title></title>

<script type="text/javascript">
     function DX(n){
            if (!/^(0|[1-9]\d*)(\.\d+)?$/.test(n))
                 return"数据非法";  
      var unit="千百拾亿千百拾万千百拾元角分",str="";
                 n += "00";
      var p= n.indexOf('.');
      if(p >=0)
         n=n.substring(0,p)+n.substr(p+1,2);
         unit=unit.substr(unit.length-n.length);
         for(var i=0; i<n.length; i++)
          str +='零壹贰叁肆伍陆柒捌玖'.charAt(n.charAt(i))+unit.charAt(i);
         return str.replace(/零(千|百|拾|角)/g,"零").replace(/(零)+/g,"零").replace(/零(万|亿|元)/g,"$1").replace(/(亿)万|壹(拾)/g, "$1$2").replace(/^元零?|零分/g,"").replace(/元$/g,"元整");
}
 alert('123456.45'+DX(123456.45));
</script>
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