Index: branches/RC/core/units/general/helpers/image_helper.php
===================================================================
diff -u -N -r10638 -r11305
--- branches/RC/core/units/general/helpers/image_helper.php	(.../image_helper.php)	(revision 10638)
+++ branches/RC/core/units/general/helpers/image_helper.php	(.../image_helper.php)	(revision 11305)
@@ -10,6 +10,8 @@
 		 */
 		function parseFormat($format)
 		{
+			$res = Array ();
+
 			$format_parts = explode(';', $format);
 			foreach ($format_parts as $format_part) {
 				if (preg_match('/resize:(\d*)x(\d*)/', $format_part, $regs)) {
@@ -21,6 +23,9 @@
 					$res['h_margin'] = $regs[2];
 					$res['v_margin'] = $regs[3];
 				}
+				elseif ($format_part == 'img_size' || $format_part == 'img_sizes') {
+					$res['image_size'] = true;
+				}
 			}
 
 			return $res;
@@ -36,12 +41,20 @@
 		 */
 		function ResizeImage($src_image, $max_width, $max_height = null)
 		{
+			$image_size = false;
+
 			if(isset($max_height)) {
 				$params['max_height'] = $max_height;
 				$params['max_width'] = $max_width;
 			}
 			else {
 				$params = $this->parseFormat($max_width);
+
+				if (array_key_exists('image_size', $params)) {
+					// image_size param shouldn't affect resized file name (crc part)
+					$image_size = $params['image_size'];
+					unset($params['image_size']);
+				}
 			}
 
 			if ($params['max_width'] > 0 || $params['max_height'] > 0) {
@@ -67,6 +80,12 @@
 				}
 			}
 
+			if ($image_size) {
+				// return only image size (resized or not)
+				$image_info = $this->getImageInfo($src_image);
+				return $image_info ? $image_info[3] : '';
+			}
+
 			$base_url = rtrim($this->Application->BaseURL(), '/');
 			return preg_replace('/^'.preg_quote(FULL_PATH, '/').'(.*)/', $base_url.'\\1', $src_image);
 		}