function popup(mylink, windowname) {
	if (!window.focus)
		return true;
	
	var href;

	if (typeof(mylink) == 'string')
   		href=mylink;
	else
   		href=mylink.href;

	window.open(href, windowname, 'width=640,height=480,scrollbars=yes');
	return false;
}

function popup1(mylink, windowname) {
	if (!window.focus)
		return true;

	var href;

	if (typeof(mylink) == 'string')
   		href=mylink;
	else
   		href=mylink.href;
		
	window.open(href, windowname, 'width=1024,height=800,scrollbars=yes');
	return false;
}

function popup2(mylink, windowname) {
	if (!window.focus)
		return true;

	var href;

	if (typeof(mylink) == 'string')
   		href=mylink;
	else
   		href=mylink.href;
		
	window.open(href, windowname, 'width=1024,height=640,scrollbars=yes');
	return false;
}