diff --git a/editor/extensions/ext-closepath.js b/editor/extensions/ext-closepath.js
index 0865b072..73b03eaf 100644
--- a/editor/extensions/ext-closepath.js
+++ b/editor/extensions/ext-closepath.js
@@ -9,84 +9,81 @@
 
 // This extension adds a simple button to the contextual panel for paths
 // The button toggles whether the path is open or closed
-svgEditor.addExtension("ClosePath", function(S) {
-		var selElems,
-			updateButton = function(path) {
-				var seglist = path.pathSegList,
-					closed = seglist.getItem(seglist.numberOfItems - 1).pathSegType==1,
-					showbutton = closed ? '#tool_openpath' : '#tool_closepath',
-					hidebutton = closed ? '#tool_closepath' : '#tool_openpath';
-					$(hidebutton).hide();
-					$(showbutton).show();
-			},
-			showPanel = function(on) {
-				$('#closepath_panel').toggle(on);
-				if (on) {
-					var path = selElems[0];
-					if (path) updateButton(path);
-				}
-			},
-		
-			toggleClosed = function() {
+svgEditor.addExtension('ClosePath', function() {
+	var selElems,
+		updateButton = function(path) {
+			var seglist = path.pathSegList,
+				closed = seglist.getItem(seglist.numberOfItems - 1).pathSegType == 1,
+				showbutton = closed ? '#tool_openpath' : '#tool_closepath',
+				hidebutton = closed ? '#tool_closepath' : '#tool_openpath';
+				$(hidebutton).hide();
+				$(showbutton).show();
+		},
+		showPanel = function(on) {
+			$('#closepath_panel').toggle(on);
+			if (on) {
 				var path = selElems[0];
-				if (path) {
-					var seglist = path.pathSegList,
-						last = seglist.numberOfItems - 1;					
-					// is closed
-					if(seglist.getItem(last).pathSegType == 1) {
-						seglist.removeItem(last);
-					}
-					else {
-						seglist.appendItem(path.createSVGPathSegClosePath());
-					}
-					updateButton(path);
+				if (path) updateButton(path);
+			}
+		},
+		toggleClosed = function() {
+			var path = selElems[0];
+			if (path) {
+				var seglist = path.pathSegList,
+					last = seglist.numberOfItems - 1;
+				// is closed
+				if (seglist.getItem(last).pathSegType == 1) {
+					seglist.removeItem(last);
+				} else {
+					seglist.appendItem(path.createSVGPathSegClosePath());
 				}
-			};
-		
-		return {
-			name: "ClosePath",
-			svgicons: "extensions/closepath_icons.svg",
-			buttons: [{
-				id: "tool_openpath",
-				type: "context",
-				panel: "closepath_panel",
-				title: "Open path",
-				events: {
-					'click': function() {
-						toggleClosed();
-					}
+				updateButton(path);
+			}
+		};
+
+	return {
+		name: 'ClosePath',
+		svgicons: 'extensions/closepath_icons.svg',
+		buttons: [{
+			id: 'tool_openpath',
+			type: 'context',
+			panel: 'closepath_panel',
+			title: 'Open path',
+			events: {
+				click: function() {
+					toggleClosed();
 				}
-			},
-			{
-				id: "tool_closepath",
-				type: "context",
-				panel: "closepath_panel",
-				title: "Close path",
-				events: {
-					'click': function() {
-						toggleClosed();
-					}
+			}
+		},
+		{
+			id: 'tool_closepath',
+			type: 'context',
+			panel: 'closepath_panel',
+			title: 'Close path',
+			events: {
+				click: function() {
+					toggleClosed();
 				}
-			}],
-			callback: function() {
-				$('#closepath_panel').hide();
-			},
-			selectedChanged: function(opts) {
-				selElems = opts.elems;
-				var i = selElems.length;
-				
-				while(i--) {
-					var elem = selElems[i];
-					if(elem && elem.tagName == 'path') {
-						if(opts.selectedElement && !opts.multiselected) {
-							showPanel(true);
-						} else {
-							showPanel(false);
-						}
+			}
+		}],
+		callback: function() {
+			$('#closepath_panel').hide();
+		},
+		selectedChanged: function(opts) {
+			selElems = opts.elems;
+			var i = selElems.length;
+			while (i--) {
+				var elem = selElems[i];
+				if (elem && elem.tagName == 'path') {
+					if (opts.selectedElement && !opts.multiselected) {
+						showPanel(true);
 					} else {
 						showPanel(false);
 					}
+				} else {
+					showPanel(false);
 				}
 			}
-		};
+		}
+	};
 });