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javascript cookies²Ù×÷
<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");
    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)
//É趨CookieÖµ
{
var  expdate  =  new  Date();
var  argv  =  SetCookie.arguments;
var  argc  =  SetCookie.arguments.length;
var  expires  =  (argc  >  2)  ?  argv[2]  :  null;
var  path  =  (argc&nbs


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