function mainmenu(){
//$(" #nav a").removeAttr("title");
$(" #nav ul ").css({display: "none"}); // Opera Fix
$(pageNum).addClass("active")  
$(" #nav li").hover(function(){// here goes mouse over effect
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).show(400);
		},function(){// here goes mouse out effect
		$(this).find('ul:first').css({visibility: "hidden"});
		});
}
 $(document).ready(function(){					
	mainmenu();
});
$(document).ready(function(){
  // Add page identifier
  $(pageNum).addClass("selectedLava")  

});

<!--
	var query = new Object();
	window.location.search.replace(
	new RegExp( "([^?=&]+)(=([^&]*))?", 'g' ),
		function( $0, $1, $2, $3 ){
			query[ $1 ] = $3;
		}
	);
	easing = query['e'] || 'Expo';
	
	function loadEasing(e) {
		location.href = location.pathname+'?e='+e;
	}
	
	function setEasing(e) {
		loadLamps(e);
	}

// for dynamic easing changes		
	function loadLamps(easing) {

		$('#lavaLampVariableImage').lavaLamp({
			fx: 'easeOut'+easing,
			speed: 800,
			startItem:1
		});

	}
	
// jquery initialize:
	$(function() {
		$('#nav').lavaLamp({fx: 'swing', speed: 444});
		loadLamps(easing);
		
		$('select#easing option[value='+easing+']').attr('selected','selected');
		$('.easingLabel').text(easing);
	});
//console.log();
-->