$(document).ready(function(){
	$(".category > a").click(function(){
		if($(this).siblings("div").css("display") == "none"){
			$(this).siblings("div").slideDown('slow');
			
			var newSrc = $(this).parent().children().children("img").attr("src").replace("icon_expand.gif","icon_collapse.gif");
			$(this).parent().children().children("img").attr("src",newSrc);return false;
		} else{
			$(this).siblings("div").slideUp('slow');
			
			var newSrc = $(this).parent().children().children("img").attr("src").replace("icon_collapse.gif","icon_expand.gif");
			$(this).parent().children().children("img").attr("src",newSrc);return false;
		}
	});
	
});