$.fn.uitschuifMenuHover = function(obj){
	return $(this).hover(function(){
		if(obj.time === undefined){
			obj.time = 500;
		}
		var ul = $(this).children('ul');
		var a = $(this).children('a');
		if(ul.is(':hidden')){
			ul.slideDown(obj.time);
			if(obj.img != ''){
				a.attr('original', a.css("background-image"));
				a.css("background-image", obj.img);
			}
		}else{
			ul.slideUp(obj.time);
			if(a.attr('original') !== undefined){
				a.css("background-image", a.attr('original'));
			}
		}
	});
}


$.fn.uitschuifMenu = function(obj){
	return $(this).bind('click', function(e){
		e.preventDefault();
		if(obj.time === undefined){
			obj.time = 500;
		}
		var ul = $(this).next('ul');
		var a = $(this);
		if(ul.is(':hidden')){
			ul.slideDown(obj.time);
			if(obj.img != ''){
				a.attr('original', a.css("background-image"));
				a.css("background-image", obj.img);
			}
		}else{
			ul.slideUp(obj.time);
			if(a.attr('original') !== undefined){
				a.css("background-image", a.attr('original'));
			}
		}	
	});
}

//$(".uitschuifmenu").uitschuifMenuHover({'img':'url(/upload/1783_btn_hover.jpg)', 'time': 1200});