输入小写金额同时显示大写金额

输入小写金额同时显示大写金额
<script language="JavaScript">

function daxie()

{

this.values = ["零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"];

this.digits = ["", "拾", "佰", "仟"];

}

function daxie.prototype.getdx(num)

{

if(isNaN(num)) return "";

var number = Math.round(num*100)/100;

number = number.toString(10).split('.');

var integer = number[0];

var len = integer.length;

if (len > 12)

return "数值超出范围！支持的最大数值为 999999999999.99";

var returnValue = this.bns(integer.slice(-4));

if (len > 4)

returnValue = this.bns(integer.slice(-8,-4)) + (integer.slice(-8,-4)!="0000"?"万":"") + returnValue;

if (len > 8)

returnValue = this.bns(integer.slice(-12,-8)) + "亿" + returnValue;

if(returnValue!="")

returnValue += "圆";

if(number.length==2)

{

var cok = number[1].split('');

if(returnValue!="" || cok[0]!="0")

returnValue += this.values[parseInt(cok[0])] + (cok[0]!="0"?"角":"");

if(cok.length>=2)

returnValue += this.values[parseInt(cok[1])] + "分";

}

if(returnValue!="" && !/分$/.test(returnValue))

returnValue += "整";

return returnValue;

}

function daxie.prototype.bns(str)

{

var num = str.split('');

var dsl = num.length-1;

var returnValue = "";

for (var i=0; i<=dsl; i++)

returnValue += this.values[parseInt(num[i])] + (num[i]!='0'?this.digits[dsl-i]:"");

returnValue = returnValue.replace(/零+$/, "").replace(/零{2,}/, "零");

return returnValue;

}

var stmp = "";

var dfs = new daxie();

function nst(t)

{

if(t.value==stmp) return;

var ms = t.value.replace(/[^\d\.]/g,"").replace(/(\.\d{2}).+$/,"$1");

var txt = ms.split(".");

while(/\d{4}(,|$)/.test(txt[0]))

txt[0] = txt[0].replace(/(\d)(\d{3}(,|$))/,"$1,$2");

t.value = stmp = txt[0]+(txt.length>1?"."+txt[1]:"");

bbb.value = dfs.getdx(parseFloat(ms));

}

</script>

小写金额：<input type="text" name="aaa" onkeyup="nst(this)"><br>

大写金额：<input type="text" name="bbb" size=80>