function popup(mylink, windowname, width, height)
{
	if (! window.focus)return true;
	
	var href;
	
	if (typeof(mylink) == 'string')
		href=mylink;
	else
		href=mylink.href;

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

function popup640x480(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 popup480x640(mylink, windowname)
{
	if (! window.focus)return true;
	
	var href;
	
	if (typeof(mylink) == 'string')
		href=mylink;
	else
		href=mylink.href;

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

function popup540x410(mylink, windowname)
{
	if (! window.focus)return true;
	
	var href;
	
	if (typeof(mylink) == 'string')
		href=mylink;
	else
		href=mylink.href;

	window.open(href, windowname, 'width=540,height=410,scrollbars=yes');
	return false;
}

function popup420x550(mylink, windowname)
{
	if (! window.focus)return true;
	
	var href;
	
	if (typeof(mylink) == 'string')
		href=mylink;
	else
		href=mylink.href;

	window.open(href, windowname, 'width=420,height=550,scrollbars=yes');
	return false;
}

function popup540x470(mylink, windowname)
{
	if (! window.focus)return true;
	
	var href;
	
	if (typeof(mylink) == 'string')
		href=mylink;
	else
		href=mylink.href;

	window.open(href, windowname, 'width=540,height=470,scrollbars=yes');
	return false;
}

function popup800x600(mylink, windowname)
{
	if (! window.focus)return true;
	
	var href;
	
	if (typeof(mylink) == 'string')
		href=mylink;
	else
		href=mylink.href;

	window.open(href, windowname, 'width=800,height=600,scrollbars=yes');
	return false;
}

function targetopener(mylink, closeme, closeonly)
{
	if (! (window.focus && window.opener))return true;
	window.opener.focus();
	if (! closeonly)window.opener.location.href=mylink.href;
	if (closeme)window.close();
	return false;
}