function mainmenu(){
$(" #nav ul ").css({display: "none"}); // Opera Fix
$(" #nav li").hover(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).slideDown(400);
		},function(){
		$(this).find('ul:first').slideUp(400);
		});
}

 
 
 $(document).ready(function(){					
	mainmenu();
});
 
 $('#nav a').click(function() {
return confirm('You are going to visit: ' +
this.href);
});