$s = jQuery.noConflict();

function mainmenu(){
	$s = jQuery.noConflict();
$s(" #nav ul ").css({display: "none"}); // Opera Fix
$s(" #nav li").hover(function(){
		$s(this).find('ul:first').css({visibility: "visible",display: "none"}).show(150);
		},function(){
		$s(this).find('ul:first').css({visibility: "hidden"});
		});
}

 
 
 $s(document).ready(function(){	
							
	mainmenu();
});