diff --git a/script/Graph.js b/script/Graph.js
index b1cb111..c943a94 100644
--- a/script/Graph.js
+++ b/script/Graph.js
@@ -105,13 +105,11 @@ Graph.prototype.DeleteVertex = function(vertexObject)
 	var index = this.vertices.indexOf(vertexObject);
 	if (index > -1) 
 	{
-        var clonedEdge = this.edges.slice(0);
-		
-		for (var i = 0; i < clonedEdge.length; i++)
+ 		for (var i = 0; i < this.edges.length; i++)
 		{
-			if (clonedEdge[i].vertex1 == vertexObject || clonedEdge[i].vertex2 == vertexObject)
+			if (this.edges[i].vertex1 == vertexObject || this.edges[i].vertex2 == vertexObject)
 			{
-				this.DeleteEdge(clonedEdge[i]);
+				this.DeleteEdge(this.edges[i]);
 				i--;
 			}
 		}