$subSelect = "SELECT image_id,image_tag from imagetags where image_id = '$img_image_id'";
			
			$resultSub = mysql_query($subSelect) or die(mysql_error());
			
			$subArray  = array();
			$tagValue  = '';
			
			while($rowSub = mysql_fetch_assoc($resultSub))
				$subArray[] = $rowSub;			
			
			print_r($subArray);
			foreach ($subArray as $subValue) {
				$tagValue = $tagvalue." ,".$subValue;
			}
			print_r($tagValue);