<?
abstract class Url_Util {
	static function shortURL($url) {
		$SHORT_URL = preg_replace('`https?://`', '', $url);
		if (substr($SHORT_URL, -1) == '/') {
			$SHORT_URL = substr($SHORT_URL, 0, -1);
		}
		return $SHORT_URL;
	}
	
	function buildParams() {
		
		$urlParams = array();
		$numargs = func_num_args();
		for ($i = 0; $i < $numargs; $i ++) {
			$arg = func_get_arg($i);
			
			if (is_object($arg) && is_subclass_of($arg, 'DB_Object')) {
				array_push($urlParams, $arg->getFormKey().'='.$arg->Id);
			} else if (is_string($arg)) {
				array_push($urlParams, $arg);
			}
		}
		return '?'.join('&', $urlParams);
	}
}
?>