anchor.diff:  	alert('rowContents[3]='+rowContents[3]);
   	alert('rowContents[4]='+rowContents[4]);*/
   	
  -	var operatorsTdContent='Union';
  +	var operatorsTdContent=operation;
   //alert('before call');
   	//create a table containing tbody with id "table1"
   	addRowToTable("table1",rowContents,operandsTdContent,operatorsTdContent);	
  
positive.code: 			queryIdsToAdd=queryIdsToAdd+","+counter;
  		}
  	}
  //	alert('queryIdsToAdd='+queryIdsToAdd);
  	createCQ(queryIdsToAdd,operation,queryCount);		
  }
  
  
negative.code: {
  //	alert('in add cq');
  	var queryIdsToAdd='';
  	//var queryControls=document.getElementsByName("chkbox");
  //	alert('queryControls.len='+queryControls.length);
  	var queryCount=0;
  	//if(queryControls!=null && queryControls!=undefined)
  	//{
  		queryCount=document.getElementById("table1").rows.length;
  	//}
  //alert('queryCount='+queryCount);
  	for(var counter=0;counter<queryCount;counter++)
  	{
  		var checkboxControl=document.getElementById("checkbox_"+(counter));
  