Index: branches/RC/core/admin_templates/js/ajax.js
===================================================================
diff -u -r9603 -r9639
--- branches/RC/core/admin_templates/js/ajax.js	(.../ajax.js)	(revision 9603)
+++ branches/RC/core/admin_templates/js/ajax.js	(.../ajax.js)	(revision 9639)
@@ -75,6 +75,15 @@
 	}
 }
 
+Request.processRedirect = function($request) {
+	var $match_redirect = new RegExp('^#redirect#(.*)').exec($request.responseText);
+	if ($match_redirect != null) {
+		// redirect to external template requested
+		window.location.href = $match_redirect[1];
+		return true;
+	}
+	return false;
+}
 Request.sendHeaders = function($request) {
 	for (var $header_name in Request.headers) {
 		if (typeof Request.headers[$header_name] == 'function') {
@@ -325,4 +334,110 @@
 
 AjaxPopupManager.prototype.errorCallback = function($request, $params, $object) {
 	alert('AJAX Error; class: AjaxPopupManager; ' + Request.getErrorHtml($request));
+}
+// AJAX DropdownPreloader class
+function AjaxDropdownPreloader($url, $input_mask, $filter_field, $dependend_field, value) {
+	this.URL = $url;
+	this.InputMask = $input_mask;
+	this.FilterField = $filter_field;
+	this.DependendField = $dependend_field;
+	this.Titles = this.prepareTitles();
+	this.Value = value;
+	this.BusyRequest = false;
+}
+AjaxDropdownPreloader.prototype.prepareURL = function()
+{
+	return this.URL.replace('#DEPENDEND#', this.Dependend).replace('#FILTER_VALUE#', this.getValue(this.FilterField));
+}
+AjaxDropdownPreloader.prototype.prepareTitles = function() {
+	var $control = this.getControl(this.DependendField);
+	var $i = 0;
+	var $ret = new Array ();
+	while ($i < $control.options.length) {
+		$ret[$control.options[$i].value] = $control.options[$i].innerHTML;
+		$i++;
+	}
+	return $ret;
+}
+AjaxDropdownPreloader.prototype.getValue = function($field_name) {
+	var $control = this.getControl($field_name);
+	if ($control.tagName == 'INPUT') return $control.value;
+	return $control.selectedIndex > 0 ? $control.options[$control.selectedIndex].value : '';
+}
+AjaxDropdownPreloader.prototype.Query = function () {
+	var $url = this.prepareURL();
+	var $selected_value = this.Value || this.getValue(this.DependendField);
+	// remove all existing options
+	this.removeOptions();
+	Request.makeRequest($url, this.BusyRequest, '', this.successCallback, this.errorCallback, $selected_value, this);
+}
+AjaxDropdownPreloader.prototype.getControl = function($field) {
+	var $id = this.InputMask.replace('#FIELD#', $field);
+	return document.getElementById($id);
+}
+AjaxDropdownPreloader.prototype.successCallback = function($request, $params, $object) {
+	if (Request.processRedirect($request) === true) {
+		return ;
+	}
+	var control = $object.getControl($object.DependendField)
+	$object.ProcessXMLNode($request.responseXML, control, $params);
+	runOnChange(control);
+	$object.AfterProcess();
+}
+AjaxDropdownPreloader.prototype.ProcessXMLNode = function($node, $dst_field, $selected_value) {
+	for (var i = 0; i < $node.childNodes.length; i++) {
+		var $child = $node.childNodes.item(i);
+		switch ($child.tagName) {
+			case 'option':
+				var opt_value = $child.getAttribute('value');
+				var title;
+				if (opt_value) { // value is passed explicically
+					title = $child.firstChild.nodeValue
+				}
+				else {
+					opt_value = $child.firstChild.nodeValue;
+					title = this.Titles[$child.firstChild.nodeValue];
+				}
+				this.addOption($dst_field, opt_value, title, $child.attributes);
+				if (opt_value == $selected_value) {
+					$dst_field.options[$dst_field.options.length - 1].selected = true;
+				}
+				break;
+			case 'field_options':
+				this.addOption($dst_field, '', '');
+				// add new states
+				this.ProcessXMLNode($child, $dst_field, $selected_value);
+				if ($dst_field.options.length == 0 || $dst_field.options.length == 2) {
+					$dst_field.value = $dst_field.options[$dst_field.options.length - 1].value;
+				}
+				break;
+		}
+	}
+}
+AjaxDropdownPreloader.prototype.AfterProcess = function()
+{
+}
+AjaxDropdownPreloader.prototype.removeOptions = function($object) {
+	if (!$object) $object = this.getControl(this.DependendField);
+	if ($object.options.length > 0) {
+		while ($object.options.length > 0) {
+			$object.remove(0);
+		}
+	}
+}
+AjaxDropdownPreloader.prototype.addOption = function($object, $value, $title, attributes) {
+	var $option = document.createElement('OPTION');
+	$object.options.add($option, $object.options.length);
+	$option.innerText = $title;
+	$option.innerHTML = $title;
+	$option.value = $value;
+	if (attributes) {
+		for (var i=0; i<attributes.length; i++) {
+			if (attributes[i].nodeName == 'value') continue;
+			$option.setAttribute(attributes[i].nodeName, attributes[i].nodeValue);
+		}
+	}
+}
+AjaxDropdownPreloader.prototype.errorCallback = function($request, $params, $object) {
+	alert('AJAX Error; class: AjaxDropdownPreloader; ' + Request.getErrorHtml($request));
 }
\ No newline at end of file