function openwin(url,name,width,height)
{
	var win = window.open(url,name,'toolbar=no,width='+width+',height='+height+',screenX=80,left=80,screenY=80,top=80,directories=no,status=no,scrollbars=yes,resize=yes,menubar=no');
	win.focus();
}
function closewin()
{
	self.close();
}