js+query将金额转换为大写格式

function numberToWords(num,formObjId) {
    var strOutput = "",
    strUnit = '仟佰拾亿仟佰拾万仟佰拾元角分';
    num += "00";
    var intPos = num.indexOf('.');
    if (intPos >= 0){
        num = num.substring(0, intPos) + num.substr(intPos + 1, 2);
    }
    strUnit = strUnit.substr(strUnit.length - num.length);
    for (var i=0; i < num.length; i++){
        strOutput += '零壹贰叁肆伍陆柒捌玖'.substr(num.substr(i,1),1) + strUnit.substr(i,1);
    }
    var words = strOutput.replace(/零角零分$/, '整').replace(/零[仟佰拾]/g, '零').replace(/零{2,}/g, '零').replace(/零([亿|万])/g, '$1')
                .replace(/零+元/, '元').replace(/亿零{0,3}万/, '亿').replace(/^元/, "零元")
    $('#'+formObjId).val(words);
};

<input name="xiaoxie" type="text" onkeyup="numberToWords(this.value,'daxie')"  />
<input name="daxie" id="daxie" type="text" value="" />