JS金融文本框

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head>    <title>金融软件文本框禁用非法字符特效-2011-04-26</title>    <style type="text/css">        .ime        {            ime-mode: disabled; /**只对IE有效，禁用输入法切换**/            width:300px;        }    </style>    <script language="javascript" type="text/javascript">        function isValiNum(k) {            return (k == 9 || k == 13 || k == 46 || k == 8 || k == 189 || k == 190 || k == 110 || (k >= 48 && k <= 57) || (k >= 96 && k <= 105) || (k >= 37 && k <= 40));        }        function numKeyDown() {var k = window.event.keyCode;if(k==86) {return numPaste();}                        //判断输入字符是否合法；调用isValiNum函数；            return isValiNum(k);        }        function numPaste() {            //从剪切板中获取数据；            var text = window.clipboardData.getData("Text");            for (var i = 0; i < text.length; i++) {                var asc = text.charCodeAt(i);   //转成ASCII值；                if (!isValiNum(asc)) {alert("您的粘贴内容有非法字符");                    return false;                }            }        }        //自动给输入的数据加逗号；        function commafy(n) {            var re = /\d{1,3}(?=(\d{3})+$)/g;            var n1 = n.replace(/^(\d+)((\.\d+)?)$/, function (s, s1, s2) { return s1.replace(re, "{1},") + s2; });            return n1;        }    </script></head><body>    <input id="txtCode" type="text" class="ime" onpaste="return numPaste()" onkeydown="return numKeyDown()" onfocus="this.style.textAlign='right'; this.value=this.value.replace(/,/g,'');" onblur="this.style.textAlign='right';this.value=commafy(this.value)" /></body></html>