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ÓÃÒ»¸öÕý²à±í´ïʽÔÚjavascriptÖÐÑéÖ¤¾ÍÊÇ¿©!
<script language='javascript'>
function chkMail(){
if(document.form1.email.value=''){
alert("ÇëÌîдÓÊÏ䵨ַ!");
document.form1.email.focus();
return false;
}
//¿ªÊ¼ÑéÖ¤
var email = document.form1.email.value;
var pattern = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
chkFlag = pattern.test(email);
if(chkFlag){
return true;
}
else
{
alert("ÓÊÏ䵨ַµÄ¸ñʽ²»ÕýÈ·£¡");
document.form1.email.focus();
return false;
}
}
</script>
~~~~~~~~~~~~~~~~~~~~~~~Íê±Ï£¡
×î¼òµ¥µÄ¾ÍÒ»¾ä£º
if(!/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/.test('email'))
{
alert('email²»ÕýÈ·');
}
----------------------------------------------------------------------------------------------------------------------------
js:
function isEmail(email)
{
invalidChars = " /;,:{}[]|*%$#!()`<>?";
if (email == "")
{
return false;
}
for (i=0; i< invalidChars.length; i++)
{
badChar = invalidChars.charAt(i)
if (email.indexOf(badChar,0) > -1) {
return false;
}
}
atPos = email.indexOf("@",1)
if (atPos == -1) {   return false; }
if (email.indexOf("@", atPos+1) != -1) {   return false; }
periodPos = email.indexOf(".",atPos)
if(periodPos == -1) {
return false; // and at least one "." after the "@"
}
if ( atPos +2 > periodPos) {
return false; // and at least one character between "@" and "."
}
if ( periodPos +3 > email.length) {   return false; }
return true;
}
aspx: µ÷ÓÃ:
<input id=zz><input type=button value=check onclick="if(isEmail(zz.value))alert('ÕýÈ·');else alert('´íÎó')">


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      function createSelect(){
        var mySelect = document.createElement("select");
          mySelect.id = "mySelect";  ......

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function
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{
    
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ÓÃjavaScriptÖÆ×÷ÍøÒ³ÖÐÏÔʾÁбí

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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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ÎÞ±êÌâÎ ......

javascript cookies ´æ¡¢È¡¡¢É¾³ýʵÀý

<script>
//дcookiesº¯Êý ×÷ÕߣºµÔÕñ¿­
function SetCookie(name,value)//Á½¸ö²ÎÊý£¬Ò»¸öÊÇcookieµÄÃû×Ó£¬Ò»¸öÊÇÖµ
{
    var Days = 30; //´Ë cookie ½«±»±£´æ 30 Ìì
    var exp  = new Date();    //new Date("December 31, 9998");
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