popup error

[glenngv]

ive got this function in my site:


function askUser(foldername){
w=350;h=300;
posX = (screen.availWidth/2)-(w/2);
posY = (screen.availHeight/2)-(h/2);
if (confirm("Access denied.\nIf you REALLY belong to this group '"+foldername+"', please press OK, otherwise press CANCEL."))
win = window.open("include.asp?grp="+escape(foldername),"_include","location=0,resizable=0,toolbar=0,width="+w+",height="+h+",left="+posX+",top="+posY);
return;
}


and after clicking OK button in the confirm box, it returns this error:

The callee (server [not server application]) is not available and disappeared; all connections are invalid. The call did not execute.

i know this error, it appears when you try to access the opener window but it is already closed. but this is not the case. im just trying to open a popup page. this happens only in IE5.01, for other browsers, it's OK