$(document).ready(function() {

		$("a img.additional_pic").click(function() {
				return false;
		});
		
		$("a img.additional_pic").mouseover(function() {
				var new_path = $(this).parent('a').attr("href");
				//$("img.main_pic").attr("src", "/images/spacer.gif");
				$("img.main_pic").attr("src", new_path);
				return false;
		});

});