var datei,f,k,fenster;

function Oeffnen_Fenster(datei,f)
{
var br,hoe;
if (navigator.appName=="Microsoft Internet Explorer")
	{
	if (k==undefined)
		{
		k=1;
		}
		else
		{
		fenster.close();
		}
	}
fenster=window.open(datei,"Ortsplan","width=1,height=1,menubar=no,locationbar=no,status=no,resizable=yes");
fenster.focus();
switch (f)
	{
	case 1: 	br=550;
			hoe=240;
		break;
	case 2:	br=550;
			hoe=390;
		break;
	}

if(navigator.appName=="Microsoft Internet Explorer")
	{
	fenster.resizeTo(br+12,hoe+32);
	x=(screen.width-br)/2;
	y=(screen.height-hoe)/2;
	}
	else
	{
	fenster.resizeTo(br,hoe);
	x=(screen.width-fenster.outerWidth)/2;
	y=(screen.height-fenster.outerHeight)/2;
	}
fenster.moveTo(x,y);
}