anchor.diff:  	<!--coverage value-->	
   	<% myCoverage = ProjectMeasure.find(:all, :conditions =>{:metric_id => coverageMetric, :snapshot_id => snapshotId}) %>
        <% if (myCoverage.blank? || myCoverage == nil)%>
  -      <td id = "coverageValue" align="right" nowrap=""><%= @ProjectMeasure.value -%>%</td>
  +       <td id ="coverageValue" class="coverageValue" align="right" nowrap="">-</td>
        <% else %>
         <td id = "coverageValue" align="right" nowrap=""><%= myCoverage[0].value-%>%</td>
        <% end %>	
  
positive.code:  		//calculates the bar graph width 
   		var barWidth = removeCommasOrPercentage(metricValue) * scale; 		
   		//creates a span id to use to retrieve the project bar width
   		var spanId = "span" + i;
   		//alternates color row based on the row number
   		var color = getColor(i);
   			
   		//create a bar based on the metric value.  Used to calculate the name width.
   		previousElement.innerHTML = "<span style='display:inline-block; overflow: hidden; '></span><span id = "+spanId+" style = 'display: inline-block; overflow: hidden; white-space:nowrap ;background-color: "+ color +"; width:"+ barWidth + "px';>"+names+"</span><span style='display:inline-block; width:6px'><span style = 'display:inline-block'>"+metricValue+"</span>";
   	 	  	
    	} 	 	
   	checkNameFormat(noOfRows, metric);	
  }
  
negative.code: 	var barGraphWidth = tableWidth/2.5;
  	largestNumber= Math.max.apply(Math, metricsArray);
  	var scale = barGraphWidth/largestNumber;
  	console.log("this is the scale of the bar graph:  " + scale);
  	return scale; 
  }
  
  