$(document).ready(function(e){
  $("#content .head_name").click(function(e){

	 $("#content table .content_hidden").css("display","none");
	 var _self = $(this).next().children().find("span");//next();//sibling();//children("span");
	 _self.css("display","block");//"class"));
  }).attr("title","click and view details").mouseover(function(e){
	  $(this).css("background-color","lightgray");
  }).mouseout(function(e){
	  $(this).css("background-color","");  
  });

});