anchor.diff:  	    	    catch(err){}
   	    	    
   	    	    function examineGroups(dd)	{
  -					    	    
  +					 $('samplePlotRadio').checked = "true";
  +					  	    
   	    	    	if($('groupNameCompare').value == $('groupName').value){ 
   	    	    		alert('Comparison Groups Can Not be the Same'); 
   	    	    		dd.selectedIndex = 0;
  
positive.code: 	 
  	        <!--  sample based plots -->
  	        <h5>Sample-based Graph&nbsp;&nbsp;&nbsp;&nbsp;</h5>
  	        <input type="radio" name="plot" class="radio" value="<%=CaIntegratorConstants.SAMPLE_KMPLOT%>" onclick="javascript:onRadio(this,3); needGVal = false;">
  	        Kaplan-Meier survival plot for Sample Data&nbsp;
  	        <br/><br/>
  	        <html:select property="groupName" style="margin-left:20px;width:200px;" styleId="groupName" disabled="false" onchange="examineGroups(this);">
  
negative.code: 		        				$('indic').style.display='none';
  		        				needGVal = false;
  		        				$('qsForm').submit();
  		        				
  		        				//mod the submit button to prevent double clicking?
  								$('submitButton').disabled = "true";	
  								$('submitButton').style.width="300px";
  								$('submitButton').style.color="gray";
  								$('submitButton').value="processing...";
  
  		        				return;
  		        				//throw("valid");
  		        			}
  