From f85d4b9e885d7ab7dd932a9e73a8927ea57d6717 Mon Sep 17 00:00:00 2001
From: Jacob Brookover <jacob.brookover@gmail.com>
Date: Fri, 24 Jun 2011 16:28:34 +0000
Subject: [PATCH] -null element checks for alternative HTML interfaces

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@2035 eee81c28-f429-11dd-99c0-75d572ba1ddd
---
 editor/svg-editor.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/editor/svg-editor.js b/editor/svg-editor.js
index 79a26bf4..854c238b 100644
--- a/editor/svg-editor.js
+++ b/editor/svg-editor.js
@@ -2137,7 +2137,9 @@
 			// Made public for UI customization.
 			// TODO: Group UI functions into a public svgEditor.ui interface.
 			Editor.addDropDown = function(elem, callback, dropUp) {
+				if ($(elem).length == 0) return; // Quit if called on non-existant element
 				var button = $(elem).find('button');
+				
 				var list = $(elem).find('ul').attr('id', $(elem)[0].id + '-list');
 				
 				if(!dropUp) {
@@ -4227,8 +4229,11 @@
 				}
 				
 				$('#rulers').toggle(!!curConfig.showRulers);
-				$('#show_rulers')[0].checked = curConfig.showRulers;
 				
+				if (curConfig.showRulers) {
+					$('#show_rulers')[0].checked = true;	
+				}
+
 				if(curConfig.gridSnapping) {
 					$('#grid_snapping_on')[0].checked = true;
 				}