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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");
    exp.setTime(exp.getTime() +
Days*24*60*60*1000);
    document.cookie = name + "="+ escape (value)
+ ";expires=" + exp.toGMTString();
}
function
getCookie(name)//È¡cookiesº¯Êý        
{
    var arr =
document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
 
   if(arr != null) return unescape(arr[2]); return null;
}
function
delCookie(name)//ɾ³ýcookie
{
    var exp = new Date();
   
exp.setTime(exp.getTime() - 1);
    var cval=getCookie(name);
   
if(cval!=null) document.cookie= name +
"="+cval+";expires="+exp.toGMTString();
}
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alert(getCookie('xiaoqi'));
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//»ñµÃCookie½âÂëºóµÄÖµ
{
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endstr  =  documents.cookie.length;
return  unescape(documents.cookie.substring(offset,  endstr));
}
function  SetCookie(name,  value)
//
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{
var  expdate  =  new  Date();
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[·­Òë]High Performance JavaScript(007)

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    Both the with statement and the catch clause of a try-catch statement, as well as a function containing eval_r(), are all considered to be dynamic scopes. A dynamic scope is one that exists only through execution of code and therefore cannot be det ......

[·­Òë]High Performance JavaScript(010)

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    Another way of updating page contents using DOM methods is to clone existing DOM elements instead of creating new ones—in other words, using element.cloneNode() (where element is an existing node) instead of document.createElement().
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