anchor.diff:  	if(d!=null){
   		$("#rollBackNodeId").val(d[0].nodeId);
   		doProcess("doTaskRollBackNode",id);
  +	}
  +}
  +
  +function doRollBackTask(){
  +	if(checkButton("doRollBackTask")){
  +			return false;
  +		}
  +	var checkboxs = $("input:checked[name=checked]");
  +	var id = "";
  +	if(checkboxs.length!=1){
  +		alert("请选中一个流程实例！");	
  +		return;
  +	}else{
  +		id = $(checkboxs[0]).val();
  +	}
  +	var obj = {
  +			  type:"step",
  +			taskId:id
  +			};
  +	var d = FixSelect(obj);
  +	if(d!=null){
  +		$("#rollBackTaskId").val(d[0].taskId);
  +		doProcess("doTaskRollBackTask",id);
   	}
   }
   
  
positive.code:     	<input type="hidden" id="action" name="action" value="taskInstanceList"/>
      	<input type="hidden" id="transferUserId" name="transferUserId"/> 
      	<input type="hidden" id="rollBackNodeId" name="rollBackNodeId"/> 
      	<input type="hidden" id="taskId" name="taskId">
      	<div class="search">
          	<table>
  
negative.code:             <div id="doResume" class="btn-normal" data-scope=single style="display:inline-block;margin-left:5px;"><a href="#" onclick="doResume();">恢复</a></div>
              <div id="doTransfer" class="btn-normal" data-scope=single style="display:inline-block;margin-left:5px;"><a href="#" onclick="doTransfer();">转发</a></div>
              <div id="doRollBackNode" class="btn-normal" data-scope=single style="display:inline-block;margin-left:5px;"><a href="#" onclick="doRollBackNode();">退回-节点</a></div>
              <div id="doRollBackTask" class="btn-normal" data-scope=single style="display:inline-block;margin-left:5px;"><a href="#" onclick="doRollBackTask()">退回-步骤</a></div>
          </div>
          <div class="content">
          	<table width="100%" class="fix-table">
  