asp用Cookies实现仅弹出一次的窗口

时间:2009-03-25    点击:1426   
<HTML>
<HEAD>
<TITLE>如何用Cookies实现仅弹出一次的窗口</TITLE>
<Script Language="JavaScript">
function OpenPop(){
    window.open("Welcome.htm","","width=500,height=100")
}
function GetCookie(name){
var search = name + "=";
var returnvalue = "";
var offset,end;
if(document.cookie.length>0){
    offset = document.cookie.indexOf(search);
    if(offset != -1){
        offset += search.length;
        end = document.cookie.indexOf(";",offset);
        if(end == -1) end = document.cookie.length;
        returnvalue = unescape(document.cookie.substring(offset,end));
    }
}
return returnvalue;
}


function LoadPop(){
if(GetCookie("popped2")==""){
    OpenPop();
    document.cookie="popped2=yes;expires=Tuesday,31-dec-2010 23:59:59 GMT";
}
}
</Script>
</HEAD>
<BODY onload="LoadPop()">
如何用Cookies实现仅弹出一次的窗口
</BODY>
</HTML>
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