function getRandomImages numOfEntries rootPath substr _SERVER PHP_SELF

		function getRandomImages($numOfEntries) {
			$rootPath = substr($_SERVER['PHP_SELF'], 0, strrpos($_SERVER['PHP_SELF'], "/")+1);
			$randIndexes = array_rand($this->images, $numOfEntries);
			
			$html = '';
			for($i=0; $i<count($randIndexes); $i++) {
				$imgPath = $this->images[$randIndexes[$i]];
				$html .= '<img src="'.$rootPath.'thumbnails/'.basename($imgPath).'"/>'."\n";
			}
			
			return $html;
		}