Index: branches/RC/core/units/general/helpers/search_helper.php
===================================================================
diff -u -r11290 -r11412
--- branches/RC/core/units/general/helpers/search_helper.php	(.../search_helper.php)	(revision 11290)
+++ branches/RC/core/units/general/helpers/search_helper.php	(.../search_helper.php)	(revision 11412)
@@ -392,6 +392,58 @@
 		}
 
 		/**
+		 * Checks, that range filters "To" part is defined for given grid
+		 *
+		 * @param string $prefix_special
+		 * @param string $grid_name
+		 * @return bool
+		 */
+		function rangeFiltersUsed($prefix_special, $grid_name)
+		{
+			static $cache = Array ();
+			$cache_key = $prefix_special . $grid_name;
+
+			if (array_key_exists($cache_key, $cache)) {
+				return $cache[$cache_key];
+			}
+
+			$view_name = $this->Application->RecallVar($prefix_special . '_current_view');
+			$custom_filters = $this->Application->RecallPersistentVar($prefix_special . '_custom_filter.' . $view_name, ALLOW_DEFAULT_SETTINGS);
+			if (!$custom_filters) {
+				// filters not defined for given prefix
+				$cache[$cache_key] = false;
+				return false;
+			}
+
+			$custom_filters = unserialize($custom_filters);
+			if (!array_key_exists($grid_name, $custom_filters)) {
+				// filters not defined for given grid
+				$cache[$cache_key] = false;
+				return false;
+			}
+
+			$range_filter_defined = false;
+
+			$custom_filter = $custom_filters[$grid_name];
+			foreach ($custom_filter as $field_name => $field_options) {
+				list ($filter_type, $field_options) = each($field_options);
+
+				if (strpos($filter_type, 'range') === false) {
+					continue;
+				}
+
+				$to_value = (string)$field_options['submit_value']['to'];
+				if ($to_value !== '') {
+					$range_filter_defined = true;
+					break;
+				}
+			}
+
+			$cache[$cache_key] = $range_filter_defined;
+			return $range_filter_defined;
+		}
+
+		/**
 		 * Return numeric range filter value + checking that it's number
 		 *
 		 * @param Array $value array containing range filter value