页面A，加载后打开一个模式窗口，设置一个参数，然后自己关闭
<html>
<head>
<script language="javascript">
function fullScreen(){
loadpopup();
var width = screen.width-10;
var height = screen.height-60;
window.open("b.html","","left=0,top=0,width="+width+",height="+height+",title=yes,scrollbars=yes,resizable=no,location=no,toolbar=no, menubar=no");
closeit();
}
//设置时间自动关闭本页面
function closeit(){
setTimeout("self.close()",3000) //毫秒
}
function loadpopup(){
if (get_cookie('popped')==''){
document.cookie="popped=yes";
}
}
//通过名称得到Cookie的内容
function get_cookie(Name) {
var search = Name + "="
var returnvalue = "";
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;
}
</script>
</head>
<body onload="fullScreen()">
</body>
</html>
页面B， 取得参数内容并弹出
<html>
<head>
<script language="javascript">
function winload(){
alert(get_cookie('popped'));
}
//通过名称得到Cookie的内容
function get_cookie(Name) {
var search = Name + "="
var returnvalue = "";
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;
}
</script>
</head>
<body onload="winload()">
</body>
</html>
如此A设置的内容，在B页面会取到，因为B是A打开的，共享一个session，所以可以取到值。
不管在前端还是在后端，共享一个会话才是获取值的关键前提。
