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//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");
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();
}
SetCookie
("xiaoqi", "3")
alert(getCookie('xiaoqi'));
</script>
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function GetCookieVal(offset)
//»ñµÃCookie½âÂëºóµÄÖµ
{
var endstr = documents.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = documents.cookie.length;
return unescape(documents.cookie.substring(offset, endstr));
}
function SetCookie(name, value)
//
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{
var expdate = new Date();
var argv = SetCookie.arguments;
var argc = SetCookie.arguments.length;
var expires = (argc > 2) ?
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µÚÈýÕ DOM Scripting DOM±à³Ì
DOM scripting is expensive, and it's a common performance bottleneck in rich web applications. This chapter discusses the areas of DOM scripting that can have a negative effect on an application's responsiveness and gives recommendations o ......