"; var_dump($m);
			$keys = explode(".",$m[1]);
			$val = $this->r;
			foreach($keys as $k) {
				$val = $val[$k];
			}
			
			//echo $val;
			return ($val?$m[2]:"");
		}
		
		public function replace($s, $r) {
			$this->s = $s;
			$this->r = $r;
			$this->search = array();
			$this->replace = array();
	
			$this->_build_replace($r, "");
	
			
			$s = preg_replace_callback("|{{ *if *([^ }]*) *}}([^{]*){{ *endif *}}|", array($this, "_replcb_if"), $s);
			
			return str_replace($this->search,$this->replace,$s);
		}
		
	}	
	$t = new Template;