只弹出一次窗口的代码 quot, offset, cookie, 窗口, search

magic

说明  窗口只在第一次访问时弹出

<SCRIPT language="javascript">
<!--
function openpopup(){
url="popup.htm"
window.open(url,"www_5217_cn","width=468,height=60,left=200,top=50")
}
function get_cookie(Name) {
var search = Name + "="
var returnvalue = "";
if (documents.cookie.length > 0) {
offset = documents.cookie.indexOf(search)
if (offset != -1) {
offset += search.length
end = documents.cookie.indexOf(";", offset);
if (end == -1)
end = documents.cookie.length;
returnvalue=unescape(documents.cookie.substring(offset, end))
}
}
return returnvalue;
}
function helpor_net(){
if (get_cookie('popped')==''){
openpopup()
documents.cookie="popped=yes"
}
}
5217_cn()
//-->
</SCRIPT>

爱爱

我就是人见人爱的回帖高手 [/color