/* Simple popup */

function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=400,height=500,left = 0,top = 0');");
}

/* Simple rollover */
function chgImg(imgField,newImg) {
	if (document.images) {
		document.getElementById(imgField).src=newImg
	}
}


/* External Links */

function externalLinks() { 
 if (!document.getElementsByTagName) return; 
 var anchors = document.getElementsByTagName("a"); 
 for (var i=0; i<anchors.length; i++) { 
   var anchor = anchors[i]; 
   if (anchor.getAttribute("href") && 
       anchor.getAttribute("rel") == "external") 
     anchor.target = "_blank"; 
 } 
} 
window.onload = externalLinks;


/* Main nav preload */

if (document.images) {
	
	showinfo = new Image
	showinfo.src = "images/menu/on/showinfo.gif"
	exhibitors = new Image
	exhibitors.src = "images/menu/on/exhibitors.gif"		
	vendors = new Image
	vendors.src = "images/menu/on/vendors.gif"
	supporters = new Image
	supporters.src = "images/menu/on/supporters.gif"
	directions = new Image
	directions.src = "images/menu/on/directions.gif"		
	contactus = new Image
	contactus.src = "images/menu/on/contactus.gif"	
	
}