var zIndex = 100;

 function getzIndex(){
    
    return   zIndex++;
    
   }
   
   $('.editor_question_item').find('.SheetsConHome ').css('zIndex',getzIndex())

   $('.editor_question_item').live('click',function(){//点击哪一个哪一个的置于最前面
                
       $(this).find('.SheetsConHome ').css('zIndex', getzIndex()+1);

   });

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