/* www.online-galaxie.de */










/* fenster-objekt */
var fenster = null;






/* fenster für galaxie 1200 x 800 */

function stars () {

	var url = "http://www.online-galaxie.de/stars/index.htm";
	fenster = fenster_2 (url, 1200, 800);
	}




/* fenster für url, grösse b x h */

function fenster_2 (url, b, h) {

	/* bildschirm */
	var sB = screen.availWidth;
	var sH = screen.availHeight;

	/*  rand innen */
	var rBi = 20;
	var rHi = 20;

	/* rand aussen */
	var rBa = 10;
	var rHa = 10;

	/* fenster dimension */
	var fB = b + 2*rBi;
	var fH = h + 2*rHi;

	/* scrollbars ? */
	var laufleisten = fB > sB - 2*rBa || fH > sH - 2*rHa;

	/* fenster ggf. verkleinern */
	fB = (fB >= sB-2*rBa ? sB-2*rBa : fB);
	fH = (fH >= sH-2*rHa ? sH-2*rHa : fH);

	/* fenster position */
	var x = parseInt ((sB-fB) / 3);
	var y = parseInt ((sH-fH) / 20);

	/* frame name */
	var name = "stars";

	/* optionen */
	var optionen = "resizable=yes,toolbar=no,status=yes,menubar=no";

	optionen += ",width=" + fB;
	optionen += ",height=" + fH;
	optionen += laufleisten ? ",scrollbars=yes" : ",scrollbars=no";
	optionen += ",screenX=" + x;
	optionen += ",screenY=" + y;
	optionen += ",left=" + x;
	optionen += ",top=" + y;

	/*
	info (name, url, b, h, rBi, rHi, rBa, rHa, sB, sH, fB, fH, optionen);
	*/

	/* neues fenster mit inhalt (url) öffnen */

	if 		(fenster == null || fenster.closed) {

			fenster = window.open (url, name, optionen);
			}

	/* fenster bereits geöffnet; fokussieren */

	else 	{
			fenster.focus();
			}

	return fenster;

	} /* end function */







function info (name, url, b, h, rBi, rHi, rBa, rHa, sB, sH, fB, fH, optionen) {

	alert 	(
			"frame : " + name + " - " +
			"content : " + url + " - " + b + " x " + h + " - " +
			"rand innen : " + rBi + ", " + rHi + " - " +
			"rand aussen :" + rBa + ", " + rHa + " - " +
			"screen : " + sB + " x " + sH + " - " +
			"frame : "  + fB + " x " + fH + " - " +
			"optionen : " + optionen
			);

	} /* end function */