Change script location.

Split js code.
Added cache and changed loading mechanism for js sources.

script/features/add_vertices_handler/index.js

@@ -0,0 +1,59 @@
+doInclude ([
+    include ("features/base_handler/index.js")
+])
+
+/**
+ * Add Graph handler.
+ *
+ */
+function AddGraphHandler(app)
+{
+  this.removeStack = true;
+  BaseHandler.apply(this, arguments);
+  this.message = g_clickToAddVertex;	
+  this.addContextMenu();
+}
+
+// inheritance.
+AddGraphHandler.prototype = Object.create(BaseHandler.prototype);
+
+AddGraphHandler.prototype.MouseDown = function(pos) 
+{
+    this.app.PushToStack("Add");
+
+	this.app.CreateNewGraph(pos.x, pos.y);
+	this.needRedraw = true;
+	this.inited = false;
+}
+
+AddGraphHandler.prototype.InitControls = function() 
+{
+    var enumVertexsText = document.getElementById("enumVertexsText");
+    if (enumVertexsText)
+    {
+        var enumsList = this.app.GetEnumVerticesList();
+        for (var i = 0; i < enumsList.length; i ++)
+        {
+            var option = document.createElement('option');
+            option.text  = enumsList[i]["text"];
+            option.value = enumsList[i]["value"];
+            enumVertexsText.add(option, i);
+            if (enumsList[i]["select"])
+            {
+                enumVertexsText.selectedIndex = i;
+            }
+        }
+        
+        var addGraphHandler = this;
+        enumVertexsText.onchange = function () {
+            addGraphHandler.ChangedType();
+        };
+    }
+}
+
+AddGraphHandler.prototype.ChangedType = function() 
+{
+	var enumVertexsText = document.getElementById("enumVertexsText");
+
+	this.app.SetEnumVerticesType(enumVertexsText.options[enumVertexsText.selectedIndex].value);
+}