anchor.diff:  	        <input type="text" id="groupNameCompare" name="groupNameCompare"/>
   	        -->
   	         vs. 
  -	         <html:select property="groupNameCompare" styleId="groupNameCompare" style="width:200px;" disabled="false" onchange="if(this.value == $('groupName').value){ alert('Comparison Groups Can Not be the Same'); this.selectedIndex = 0;}">
  +	         <html:select property="groupNameCompare" styleId="groupNameCompare" style="width:200px;" disabled="false" onchange="examineGroups(this);">
   	         
   			 	<html:optionsCollection property="sampleGroupsList" />
   			</html:select>
  
positive.code: 	    	    }
  	    	    catch(err){}
  	    	    
  	        </script>
          </logic:empty>
          
  
negative.code: 	        <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);">
  			 	<html:optionsCollection property="sampleGroupsList" />
  			</html:select>
  			
  