Index: branches/RC/core/units/categories/categories_tag_processor.php
===================================================================
diff -u -N -r9279 -r9339
--- branches/RC/core/units/categories/categories_tag_processor.php	(.../categories_tag_processor.php)	(revision 9279)
+++ branches/RC/core/units/categories/categories_tag_processor.php	(.../categories_tag_processor.php)	(revision 9339)
@@ -137,9 +137,14 @@
 		/* @var $object kDBItem */
 
 		$field = $this->SelectParam($params, 'name,field');
-		$params['cat_id'] = $object->GetDBField($field);
+		$category_id = $object->GetDBField($field);
 
-		return $this->CategoryPath($params);
+		if ($category_id) {
+			$params['cat_id'] = $category_id;
+			return $this->CategoryPath($params);
+		}
+
+		return '';
 	}
 
 	function CurrentCategoryName($params)
Index: branches/RC/core/units/categories/categories_config.php
===================================================================
diff -u -N -r9329 -r9339
--- branches/RC/core/units/categories/categories_config.php	(.../categories_config.php)	(revision 9329)
+++ branches/RC/core/units/categories/categories_config.php	(.../categories_config.php)	(revision 9339)
@@ -98,14 +98,14 @@
 																					'edit_status_labels'	=>	Array('c-rel'=>'!la_title_Editing_Relationship!'),
 																					'format'				=>	"#c_status# '#c_titlefield#' - #c-rel_status#",
 																			),
-																			
+
 													'related_searches_edit'	=>	Array(	'prefixes'				=>	Array('c', 'c-search'),
 																					'new_status_labels'		=>	Array('c-search'=>"!la_title_Adding_RelatedSearch_Keyword!"),
 																					'edit_status_labels'	=>	Array('c-search'=>'!la_title_Editing_RelatedSearch_Keyword!'),
 																					'format'				=>	"#c_status# '#c_titlefield#' - #c-search_status#",
 																			),
-													
 
+
 													'tree_site'				=>	Array('format' => '!la_selecting_categories!'),
 											),
 
Index: branches/RC/core/admin_templates/incs/form_blocks.tpl
===================================================================
diff -u -N -r9337 -r9339
--- branches/RC/core/admin_templates/incs/form_blocks.tpl	(.../form_blocks.tpl)	(revision 9337)
+++ branches/RC/core/admin_templates/incs/form_blocks.tpl	(.../form_blocks.tpl)	(revision 9339)
@@ -421,7 +421,7 @@
 		<td>
 			<table cellpadding="0" cellspacing="0">
 				<tr>
-					<td>
+					<td id="<inp2:{$prefix}_InputName field="$field"/>_path">
 						<inp2:m_DefineElement name="category_caption">
 							<inp2:m_if check="m_ParamEquals" name="cat_id" value="0" inverse="inverse">
 							<inp2:m_param name="separator"/>
@@ -432,11 +432,21 @@
 						<inp2:$prefix_FieldCategoryPath field="$field" separator=" &gt; " render_as="category_caption"/>
 						<inp2:m_RenderElement name="inp_edit_hidden" pass_params="1"/>
 					</td>
-					<td>
+					<td valign="middle">
 						<img src="img/spacer.gif" width="3" height="1" alt=""/>
 						<a href="javascript:openSelector('<inp2:m_param name="prefix"/>', '<inp2:adm_SelectorLink prefix="$prefix" selection_mode="single" tab_prefixes="none"/>', '<inp2:m_param name="field"/>');">
 			          		 <img src="img/icons/icon24_cat.gif" border="0"/>
 			         	</a>
+
+			         	<a href="#" onclick="disable_category('<inp2:m_Param name="field"/>'); return false;"><inp2:m_Phrase name="la_Text_Disable"/></a>
+
+			         	<script type="text/javascript">
+				         	function disable_category($field) {
+				         		var $field = '<inp2:{$prefix}_InputName field="#FIELD_NAME#"/>'.replace('#FIELD_NAME#', $field);
+						    	set_hidden_field($field, '');
+						    	document.getElementById($field + '_path').style.display = 'none';
+						    }
+					    </script>
 					</td>
 				</tr>
 			</table>