anchor.diff:         			console.log("curU:" + curU + " curV:" + curV);
          			addToCache.jsonCall(curU, curV);
          		}
  -       		drawSystems.scanSystems();
  +       		drawSystems.scanVisualSystems();
       	});
       	$("#negU").click(function () { 
          		pageSpace.decrementCurrentU();
  
positive.code:        			console.log("curU:" + curU + " curV:" + curV);
         			addToCache.jsonCall(curU, curV);
         		}
         		drawSystems.scanSystems();
  	    });
      	$("#negV").click(function () { 
         		pageSpace.decrementCurrentV();
         		for(var count = 0;  count <= pageSpace.getUextent();count++){
  
negative.code: 							systemId: json.someDetails._systemId,
  							galacticCentre: json.someDetails._distanceToGalaxyCentre
  							});
  				pageSpace.addGraphic(json.someDetails._systemId);	
  				
  				$(json.someDetails.clusterRepList).each(function() {
  					$(this.list).each(function(){
  						console.log("cluster:" + this.string);
  