diff -r 488665d49417 -r 57ce13805b6f includes/clientside/tinymce/plugins/advlink/js/advlink.js
--- a/includes/clientside/tinymce/plugins/advlink/js/advlink.js	Sun Dec 21 15:35:46 2008 -0500
+++ b/includes/clientside/tinymce/plugins/advlink/js/advlink.js	Sun Dec 21 16:28:00 2008 -0500
@@ -428,7 +428,6 @@
 	var target = getSelectValue(formObj, 'targetlist');
 
 	setAttrib(elm, 'href', href);
-	setAttrib(elm, 'mce_href', href);
 	setAttrib(elm, 'title');
 	setAttrib(elm, 'target', target == '_self' ? '' : target);
 	setAttrib(elm, 'id');
@@ -464,7 +463,7 @@
 function getSelectValue(form_obj, field_name) {
 	var elm = form_obj.elements[field_name];
 
-	if (elm == null || elm.options == null)
+	if (!elm || elm.options == null || elm.selectedIndex == -1)
 		return "";
 
 	return elm.options[elm.selectedIndex].value;