function mainmenu(){
$(" #nav ul ").css({display: "none"}); // Opera Fix
$(" #nav li").hover(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).show(400);
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});
}
function myPopUp(url, myname, wd, ht){ 
	var PopUp;
	myleft = ((screen.width-wd)/2); 
	mytop = ((screen.height-ht)/2); 
	settings="width=" + wd + ",height=" + ht + ",top=" + mytop + ",left=" + myleft + ",menubar=no,toolbar=no,directories=no,location=no,status=no,scrollbars=no,rezizable=yes";
	PopUp = window.open(url, myname, settings); 
	PopUp.focus();
}
$(document).ready(function(){					
	mainmenu();
});