Index: branches/unlabeled/unlabeled-1.11.10/kernel/admin_templates/incs/script.js
===================================================================
diff -u -N -r4039 -r4066
--- branches/unlabeled/unlabeled-1.11.10/kernel/admin_templates/incs/script.js	(.../script.js)	(revision 4039)
+++ branches/unlabeled/unlabeled-1.11.10/kernel/admin_templates/incs/script.js	(.../script.js)	(revision 4066)
@@ -10,8 +10,64 @@
 	var $env = '';
 	var submitted = false;
 	var $init_made = true; // in case of double inclusion of script.js :)
+	
+	// hook processing
+	const hBEFORE = 1;
+	const hAFTER = 2;
+	var $hooks = new Array();
 }
 
+function getArrayValue()
+{
+	var $value = arguments[0];
+	var $current_key = 0;
+	$i = 1;
+	while ($i < arguments.length) {
+		$current_key = arguments[$i];
+		if (isset($value[$current_key])) {
+			$value = $value[$current_key];
+		}
+		else {
+			return false;
+		}
+		$i++;
+	}
+	return $value;
+}
+
+function setArrayValue()
+{
+	// first argument - array, other arguments - keys (arrays too), last argument - value
+	var $array = arguments[0];
+	var $current_key = 0;
+	$i = 1;
+	while ($i < arguments.length - 1) {
+		$current_key = arguments[$i];
+		if (!isset($array[$current_key])) {
+			$array[$current_key] = new Array();
+		}
+		$array = $array[$current_key];
+		$i++;
+	}
+	$array[$array.length] = arguments[arguments.length - 1];
+}
+
+function processHooks($function_name, $hook_type)
+{
+	var $i = 0;
+	var $local_hooks = getArrayValue($hooks, $function_name, $hook_type);
+	
+	while($i < $local_hooks.length) {
+		$local_hooks[$i]($function_name);
+		$i++;
+	}
+}
+
+function registerHook($function_name, $hook_type, $hook_body)
+{
+	setArrayValue($hooks, $function_name, $hook_type, $hook_body);
+}
+
 function resort_grid(prefix_special,field,form_action)
 {
 	set_hidden_field(prefix_special+'_Sort1', field);
@@ -254,7 +310,7 @@
 	if(!isset($width)) $width=750;
 	if(!isset($height)) $height=400;
 	if(!isset($event)) $event='';
-
+	processHooks('openSelector', hBEFORE);
 	cur_opener = get_hidden_field('m_opener');
 	set_hidden_field('m_opener','p');
 
@@ -264,6 +320,7 @@
 	var old_action = document.kernel_form.action;
 	document.kernel_form.action = $url;
 	submit_event($prefix,$event,$t);
+	processHooks('openSelector', hAFTER);
 	document.kernel_form.action = old_action;
 	set_hidden_field('m_opener',cur_opener);
 }