function newWindow (url, params)
{
	var newwindow = window.open(url, 'mywindow', "menubar=1,resizable=1,location=1,scrollbars=1,width=850,height=560");
	if (window.focus)
	{
		newwindow.focus()
	}
	return false;
}

function closeWindow ()
{
	window.close();
}