function openwin(url) 
{window.open(url,"","width=460,height=450,scrollbars=yes")} 
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; 
} 
function loadpopup(url){ 
if (get_cookie('popped')==''){ 
openwin(url) 
document.cookie="popped=yes" 
} 
}