window.addEvent('domready', function() {
	/* example a:  top down */
	$$('#drop_down_menu li.menuparent').each(function(el) {
		//fx
		var fx = new Fx.Tween(el,{
			duration: 400,
			link: 'cancel'
		});

		//css & events
		el.setStyle('background-position','0px -97px').addEvents({
			'mouseenter': function(e) {
				e.stop();
				fx.start('background-position','0% -204px');
			},
			'mouseleave': function(e) {
				e.stop();
				fx.start('background-position','0% -97px');
			}
		});
	});

	
});

window.addEvent('domready', function() {
	/* example a:  top down */
	$$('#drop_down_menu li.menu').each(function(el) {
		//fx
		var fx = new Fx.Tween(el,{
			duration: 400,
			link: 'cancel'
		});

		//css & events
		el.setStyle('background-position','0px -97px').addEvents({
			'mouseenter': function(e) {
				e.stop();
				fx.start('background-position','0% -204px');
			},
			'mouseleave': function(e) {
				e.stop();
				fx.start('background-position','0% -97px');
			}
		});
	});

	
});




window.addEvent('domready', function(){
	$('drop_down_menu').getElements('li.menuparent').each( function( elem ){
		var list = elem.getElement('ul.links');
		var myFx = new Fx.Slide(list).hide();
		elem.addEvents({
			'mouseenter' : function(){
				myFx.cancel();
				myFx.slideIn();
			},
			'mouseleave' : function(){
				myFx.cancel();
				myFx.slideOut();
			}
		});
	})
});