主题：[求助]Javascrip下网页自定义的实现！

<"script>
function openpopup(){
window.open("http://www.izhen.cn","height=100, width=400, top=0, left=0, toolbar=no, menubar=no, scrollbars=no, resizable=no,location=no, status=no")
}
function get_cookie(Name) {
var search = Name + "="
var returnvalue = "";
if (document.cookie.length > 0) {
offset = document.cookie.indexOf(search)
if (offset != -1) { // if cookie exists
offset += search.length
// set index of beginning of value
end = document.cookie.indexOf(";", offset);
// set index of end of cookie value
if (end == -1)
end = document.cookie.length;
returnvalue=unescape(document.cookie.substring(offset, end))
}
}
return returnvalue;
}

function loadpopup(){
if (get_cookie('popped')==''){
openpopup()
document.cookie="popped=yes"
}
}

<"/script>