self.focus();

function open_w(url, name, width, height)
	{
    var ah = screen.availHeight;
    var aw = screen.availWidth;
  
	var str = "scrollbars=no,resizable=no,menubar=no,status=no," + "height=" + height + ",innerHeight=" + height;
  	str += ",width=" + width + ",innerWidth=" + width;
	
    var xc = (aw - width) / 2;
    var yc = (ah - height) / 2;

    str += ",left=" + xc + ",screenX=" + xc;
    str += ",top=" + yc + ",screenY=" + yc;

	window.open(url, name, str);
	}

function open_w2(url, name, width, height)
	{
    var ah = screen.availHeight;
    var aw = screen.availWidth;
  
	var str = "scrollbars=yes,resizable=no,menubar=no,status=no," + "height=" + height + ",innerHeight=" + height;
  	str += ",width=" + width + ",innerWidth=" + width;
	
    var xc = (aw - width) / 2;
    var yc = (ah - height) / 2;

    str += ",left=" + xc + ",screenX=" + xc;
    str += ",top=" + yc + ",screenY=" + yc;

	window.open(url, name, str);
	}

function open_w3(url, name, width, height)
	{
    var ah = screen.availHeight;
    var aw = screen.availWidth;
  
	var str = "scrollbars=no,resizable=no,menubar=no,status=no," + "height=" + height + ",innerHeight=" + height;
  	str += ",width=" + width + ",innerWidth=" + width;
	
    var xc = (aw - width) / 2 - 10;
    var yc = (ah - height) / 2 + 20;

    str += ",left=" + xc + ",screenX=" + xc;
    str += ",top=" + yc + ",screenY=" + yc;

	window.open(url, name, str);
	}