function popup(url) 
{
	params  = 'width='+screen.width;
	params += ', height='+screen.height;
	params += ', top=0, left=0'
	params += ', type=fullWindow, fullscreen, scrollbars=yes';
	
	newwin=window.open(url,'windowname4', params);
	if (window.focus) {newwin.focus()}
	return false;
}