diff -r fbfdcea634a7 -r fa4c5ecb7c9a includes/clientside/tinymce/tiny_mce_popup.js
--- a/includes/clientside/tinymce/tiny_mce_popup.js	Thu Jan 31 22:29:07 2008 -0500
+++ b/includes/clientside/tinymce/tiny_mce_popup.js	Sat Feb 02 11:54:16 2008 -0500
@@ -46,9 +46,9 @@
 		return this.editor.getLang(n, dv);
 	},
 
-	execCommand : function(cmd, ui, val) {
+	execCommand : function(cmd, ui, val, a) {
 		this.restoreSelection();
-		return this.editor.execCommand(cmd, ui, val);
+		return this.editor.execCommand(cmd, ui, val, a || {skip_focus : 1});
 	},
 
 	resizeToInnerSize : function() {
@@ -93,8 +93,11 @@
 			func : function(c) {
 				document.getElementById(element_id).value = c;
 
-				if (tinymce.is(document.getElementById(element_id).onchange, 'function'))
+				try {
 					document.getElementById(element_id).onchange();
+				} catch (ex) {
+					// Try fire event, ignore errors
+				}
 			}
 		});
 	},