Added Map Dialog
Added Map Background
Prevent click on node drag event

Change-Id: Ibb13085e3aa51eae49a2017251486f00d52f6265
diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2SubRegion.js b/web/gui/src/main/webapp/app/view/topo2/topo2SubRegion.js
index dad55f5..2dd7997 100644
--- a/web/gui/src/main/webapp/app/view/topo2/topo2SubRegion.js
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2SubRegion.js
@@ -75,6 +75,9 @@
                     nodeType: 'sub-region',
                     mapDeviceTypeToGlyph: mapDeviceTypeToGlyph,
                     onClick: function () {
+
+                        if (d3.event.defaultPrevented) return;
+
                         wss.sendEvent('topo2navRegion', {
                             dir: 'down',
                             rid: this.get('id')