<?php
	class Template
	{
		public $vars;
		public $tpldirs;
		public $xhtml = true;
		public $wrapper = "wrapper.php";
		public $charset = "utf-8";
		public function __construct()
		{
			$this->var = &$this->vars;
		}
		public function set($var,$val)
		{
			if(is_array($var))
			{
				foreach($var as $k => $v)
				{ $this->vars[$var] = $val[$k]; }
			}
			else
			{
				$this->vars[$var] = $val;
			}
		}
		public function get($var)
		{
			return $this->vars[$var];
		}
		public function fetch($file)
		{
			if(is_array($this->vars)) { foreach($this->vars as $var => $val) { ${$var} = $val; } }
			ob_start();
			$found = false;
			if(!is_array($this->tpldir)) { $this->tpldir = array($this->tpldir); }
			foreach($this->tpldir as $dir)
			{
				if(substr($dir,strlen($dir)-1,1) != "/") { $dir .= "/"; }
				if(is_file($dir.$file)) { require_once($dir.$file);$found = true; }
			}
			if(!$found) { ob_end_clean();return false; }
			$content = ob_get_contents();
			ob_end_clean();
			return $content;
		}
		public function display($page,$content_type = null)
		{
			if($content_type == null && $this->xhtml)
			{
				if(strpos($_SERVER["HTTP_ACCEPT"],"application/xhtml+xml") !== FALSE || $_SERVER["HTTP_ACCEPT"] == "")
				{
					$content_type = "application/xhtml+xml;charset=utf-8";
				} else {
					$content_type = "text/html;charset=utf-8";
				}
			}
			list($this->mime,$charset) = explode(";",$content_type,2);
			list(,$this->charset) = explode("=",$charset,2);
			$content = $this->fetch($page);
			if(!$content) { $content = $this->fetch($page.".php"); }
			if(!$content) { $this->content = $page; } else { $this->content = $content; }

			header("Content-Type: {$content_type}");

			echo($this->fetch($this->wrapper));

		}
		public function is_ajax()
		{
			if
			(
				(isset($_GET["_ajax"]) && intval($_GET["_ajax"]))
				||
				(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && ($_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'))
			)
				{ return true; }
			else
				{ return false; }
		}
		public function ajax_print($array,$die = false)
		{
			header("Cache-Control: no-cache, must-revalidate");
			header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
			header("Content-Type: application/json");
			if(isset($_REQUEST["callback"]))
			{
				header("Content-Type: text/javascript;charset=utf-8");
				echo($_REQUEST["callback"]."(");
			}
			echo(json_encode($data));
			if(isset($_REQUEST["callback"]))
			{
				echo(");");
			}
			if($die) { die(); }
			return true;
		}
	}