jQuery(document).ready(function($){
	var wall = jQuery('.ZPE_ImageWall');
    var margin = 0;
	var height = Math.min(jQuery('#Footer').offset().top - wall.offset().top, (wall.children().children().length-1) * 180);
	
	wall.css({'height': height, 'overflow': 'hidden'});
	wall = wall.children().first();
	
	var li = wall.children().first();
	function step(){
		//margin = 1li.height();
		li.delay(4000).animate({'marginTop': -1 * li.height()}, 2000, 'swing', function(){
			li = li.next();
			step();
			wall.children().first().appendTo(wall).css('marginTop', 0);
		});
	}
	step();
});