Index: trunk/core/admin_templates/js/script.js
===================================================================
diff -u -N -r8104 -r8397
--- trunk/core/admin_templates/js/script.js	(.../script.js)	(revision 8104)
+++ trunk/core/admin_templates/js/script.js	(.../script.js)	(revision 8397)
@@ -443,6 +443,9 @@
 	submit_event($prefix_special, $event, $t);
 	opener_action($prev_opener); // restore opener in parent window
 	set_hidden_field('events[' + $prefix_special + ']', event_bak); // restore event
+	
+	// AJAX popup size respoce is received after std_edit_item/std_precreate_item function exit
+	set_hidden_field($prefix_special + '_mode', null);
 }
 
 function openSelector($prefix, $url, $dst_field, $window_size, $event)
@@ -505,7 +508,7 @@
 		opener_action('d');
 	 	submit_event(prefix_special,'OnPreCreate', edit_template);
   }
-  set_hidden_field(prefix_special+'_mode', '');
+//  set_hidden_field(prefix_special+'_mode', '');
 }
 
 function std_new_item(prefix_special, edit_template)
@@ -529,7 +532,7 @@
 		opener_action('d');
 		submit_event(prefix_special,'OnEdit',edit_template);
 	}
-	set_hidden_field(prefix_special+'_mode', '');
+//	set_hidden_field(prefix_special+'_mode', '');
 }
 
 function std_edit_temp_item(prefix_special, edit_template)
@@ -564,6 +567,14 @@
 {
 	var $kf = document.getElementById($form_name);
 	var $field = $kf.elements[$field_id];
+	
+	if ($value === null) {
+		if ($field) {
+			$kf.removeChild($field);
+		}
+		return true;
+	}
+	
 	if ($field) {
 		$field.value = $value;
 		return true;