function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}
function GetXmlHttpObject(){
  var xmlHttp=null;
  try{
    xmlHttp=new XMLHttpRequest();
  }
  catch (e){
    try{
      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch (e){
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
  return xmlHttp;
}

function stateChanged(){
    if (xmlHttp.readyState==4){
        document.getElementById("mediaContainer").innerHTML=xmlHttp.responseText;
    }
}

function showMovie(type,dir,file){
    xmlHttp=GetXmlHttpObject()
    if (xmlHttp==null){
      alert ("Your browser does not support AJAX!");
      return;
    }
    if(type == 'wmv'){
        createCookie('media_type','wmv',365);
    } else {
        eraseCookie('media_type');
    }
    var url="/getmovie.php";
    url=url+"?q="+type+"&pd="+dir+"&f="+file;
    url=url+"&sid="+Math.random();
    xmlHttp.onreadystatechange=stateChanged;
    xmlHttp.open("GET",url,true);
    xmlHttp.send(null);
}