function blocking(nr)
{
 if (document.getElementById)
	{
		vista = (document.getElementById(nr).style.display == 'block') ? 'none' : 'block';
		document.getElementById(nr).style.display = vista;
	}else if (document.layers)
	{
		current = (document.layers[nr].display == 'block') ? 'none' : 'block';
		document.layers[nr].display = current;
	}else if (document.all)
	{
		current = (document.all[nr].style.display == 'block') ? 'none' : 'block';
		document.all[nr].style.display = current;
	}
}
function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		do {
			curleft += obj.offsetLeft;
			curtop += obj.offsetTop;
		} while (obj = obj.offsetParent);
	}
	return [curleft,curtop];
}
function updatePos(){
  var videoWindow = document.getElementById("video");
  var videoPosition=findPos(videoWindow);

  var mailH=videoWindow.offsetHeight+videoPosition[1]+15;
  var mailW=videoWindow.offsetWidth+videoPosition[0];

  var mailWindow = document.getElementById("mailbox");
  mailWindow.style.left = (mailW-400) + "px";
  mailWindow.style.width='380px';
  mailWindow.style.top = mailH+"px";
  mailWindow.style.height='240px';
}