anchor.diff:  		operatorsTdContent=operatorsTdContent+"_"+operation;
   	}
   	//create a table containing tbody with id "table1"
  -	addRowToTable("table1",rowContents,operandsTdContent,operatorsTdContent);	
  -}
  +	addRowToTable("table1",rowContents,operandsTdContent,operatorsTdContent,expression);	
  +}
  +
  +function shortOperator(operation)
  +{
  +	if(operation='Union')
  +		return "+";
  +		
  +	if(operation='Intersection')
  +		return "*";
  +	
  +	if(operation='Minus')
  +		return "-";
  +	
  +	return "";//for NONE
  +}
  +
   
   function submitWorflow()
   {
  
positive.code:     if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
  }
  
  function showPopUp(pageOf)
  {
  	var url='QueryAction.do?pageOf='+pageOf+'&queryId=queryId&queryTitle=queryTitle&queryType=queryType';
  	pvwindow=dhtmlmodal.open('Select queries', 'iframe', url,'Select queries', 'width=930px,height=430px,center=1,resize=1,scrolling=1');
  }
  
  function updateUI()
  
negative.code: 								} 
  								
  								 document.getElementById(queryExecId).value=executionLogId;
  	
  							}
  							var lableObject=document.getElementById("label_"+queryIndex);
  							if(lableObject!=null)
  