$(function(){
      var $category=$(".proList > .plCon");
	  $category.hide();
	  var $toggleBtn=$(".plTitle > em");
	  $toggleBtn.click(function(){
	 if($(this).parent(".plTitle").next().is(":visible")){
	   $(this).parent(".plTitle").next().slideUp("fast");
	   $(this).prev(".plTitle > .ptitle").css("background","url(css/default/images/icon1.gif) no-repeat left center");
	   $(this).css("background","url(css/default/images/icon3.gif) no-repeat left center").text("展开");
	 }else{
	   $(this).parent(".plTitle").next().slideDown("fast");
	   $(this).prev(".plTitle > .ptitle").css("background","url(css/default/images/ico.gif) no-repeat left center");
	   $(this).css("background","url(css/default/images/icon12.gif) no-repeat left center").text("收起");
	 }
	 return false;
	});
	  var $toggleBtn1=$(".plTitle > .ptitle");
	  	  $toggleBtn1.click(function(){
	 if($(this).parent(".plTitle").next().is(":visible")){
	   $(this).parent(".plTitle").next().slideUp("fast");
	   $(this).next(".plTitle > em").css("background","url(css/default/images/icon3.gif) no-repeat left center").text("展开");
	   $(this).css("background","url(css/default/images/icon1.gif) no-repeat left center");
	 }else{
	   $(this).parent(".plTitle").next().slideDown("fast");
	   $(this).next(".plTitle > em").css("background","url(css/default/images/icon12.gif) no-repeat left center").text("收起");
	   $(this).css("background","url(css/default/images/ico.gif) no-repeat left center");
	 }
	 return false;
	});
})