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function $id(s) {
    return document.getElementById(s);
}
//ÅжÏСÊý
function IsFloat(s) {
    if (!/^[+\-]?\d+(.\d+)?$/.test(s))
        return false;
    else
        return true;
}
//ÅжÏÕýСÊý
function IsPlusFloat(s) {
    if (!/^[+]?\d+(.\d+)?$/.test(s))
        return false;
    else
        return true;
}
//ÅжÏÕýÕûÊý
function IsPlusInt(s) {
    if (!/^\d*$/.test(s))
        return false;
    else
        return true;
}
//ÅжÏÊÇ·ñΪ×ÖĸºÍÊý×Ö
function CheckName(s) {
    if (!/^[A-Za-z0-9._-]+$/.test(s))
        return false;
    else
        return true;
}
//¼ì²âEmail¸ñʽ
function IsEmail(s) {
    var pattern = /^([a-zA-Z0-9._-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
    flag = pattern.test(s);
    if (!flag) {
        return false;
    }
    return (true);
}
//±È½ÏÁ½¸öÊýÊÇ·ñÏàͬ
function CompValue(s1, s2) {
    if (s1 != s2) {
        return false;
    }
    else
        return true;
}
//ÅжÏ×Ö·ûÊÇ·ñΪ¿Õ
function IsEmpty(s) {
    if (s == "") {
        return false;
    }
    else
        return true;
}
//È¡RadioListµÄÖµ
function GetRadioList(s) {
    var radListItems = document.all(s);
    var radListItesCount = radListItems.le


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Javascript ÖÐ ShowModalDialog µÄʹÓ÷½·¨

ShowModalDialogº¯ÊýµÄ¹¦ÄÜ£º
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vReturnValue = window.showModalDialog(sURL [, vArguments] [, sFeatures])
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sURL
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click() ¶ÔÏó.click() ʹ¶ÔÏó±»µã»÷¡£
closed ¶ÔÏó.closed ¶ÔÏó´°¿ÚÊÇ·ñÒѹرÕtrue/false
clearTimeout(¶ÔÏó) Çå³ýÒÑÉèÖõÄsetTimeout¶ÔÏó
clearInterval(¶ÔÏó) Çå³ýÒÑÉèÖõÄsetInterval¶ÔÏó
confirm("ÌáʾÐÅÏ¢") µ¯³öÈ·ÈÏ¿ò£¬È·¶¨·µ»ØtrueÈ¡Ïû·µ»Øfalse
cursor:Ñùʽ ¸ü¸ÄÊó±êÑùʽ hand crosshair text wait help defa ......

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event.srcElement.tagName
event.srcElement.type
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event.srcElement.setCapture();
event.srcElement.releaseCapture();
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event.keyCode
event.shiftKey
event.altKey
event.ctrlKey
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event.returnValue
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event.x
event.y
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javascript typeofµÄÓ÷¨

javascript typeofµÄÓ÷¨
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if(document.mylist.length != "undefined" ) {} Õâ¸öÓ÷¨ÓÐÎó.
ÕýÈ·µÄÊÇ if( typeof(document.mylist.length) != "undefined" ) {}
»ò if( !isNaN(document.mylist.length) ) {}
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javascript ÑéÖ¤´úÂëÕûÀí

//the common event,If your brower is firefox,you should use this function instead of "window.event"
function getEvent() {
if(document.all)
return window.event; //get ie event
func=getEvent.caller;
while(func!=null) {
......
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