centerElement = function(e) {
		
		var el = e.getSize();
		var windowmiddle = getWidth() / 2;
		var elementmiddle = el.x / 2;
		var elementx = windowmiddle - elementmiddle;
						
		var windowverticalmiddle = getHeight() / 2;
		var elementverticalmiddle = el.y / 2;
		var elementy = windowverticalmiddle - elementverticalmiddle;
		
		e.setStyles({
			position: 'absolute',
			left: elementx + 'px',
			top: elementy + 'px'
		});
		
		
		var fxOpacity = new Fx.Tween(e,{'duration': 500});
		fxOpacity.start('opacity', 0, 1);
	
	
	}
	
	

	

	window.addEvent('load', function(){
	
		$('sublinks').getElements('ul').setStyle('display', 'none');
		$('s1_m').setStyle('display', 'block');
		
		$$('#mymenu li').each(function(el){
         el.getElement('a').addEvent('mouseover', function(subLinkId){
			var layer = subLinkId+"_m";
				$('sublinks').getElements('ul').setStyle('display', 'none');
				$(layer).setStyle('display', 'block');
          }.pass( el.id)
        );      
      });
	  
	  
  // --------------------------------------- //
  // SHOW and HIDE Submenu with animation
  
		
	});

		
	window.addEvent('domready', function() {
					
		centerElement($('wrapper'));
		
			
	
	});