function addLoadEvent(func) { 
  var oldonload = window.onload; 
  if (typeof window.onload != "function") { 
    window.onload = func; 
  } else { 
    window.onload = function() { 
      if (oldonload) { 
        oldonload(); 
      } 
      func(); 
    }; 
  } 
}

function initCloseVideo() {
	document.getElementById("close_vid").onclick=closeVideo;
	document.getElementById("wrapper").onclick=closeVideo;
	document.getElementById("wrapper").className="mask";

}

function closeVideo() {
	document.getElementById("video").innerHTML="";
	document.getElementById("wrapper").className="";
		
	document.getElementById("video").className="hide";
}

addLoadEvent(initCloseVideo);