//rollover
var defarrow = new Image();
var overarrow = new Image();

var arrow = new Array(defarrow,overarrow);

arrow[0].src = "images/pfeil_r0.gif"
arrow[1].src = "images/pfeil_r1.gif"

var defarrback = new Image();
var overarrback = new Image();

var arrback = new Array(defarrback,overarrback);

arrback[0].src = "images/back0.gif"
arrback[1].src = "images/back1.gif"

function backOver(knopf) {
	document.images[knopf].src = arrback[1].src;
}

function backOut(knopf) {
	document.images[knopf].src = arrback[0].src;
}

function arrowOver(knopf) {
	document.images[knopf].src = arrow[1].src;
}

function arrowOut(knopf) {
	document.images[knopf].src = arrow[0].src;
}

// Betriebssystem
var Win = false;
Win = (navigator.platform.indexOf("Win32") != -1);

// browser
var IE = false;
IE = (navigator.appName.indexOf("Microsoft") != -1);
	
var myWnd = null; // so heisse popup

var myHight = 500; 
var myWidth = 800;
// abweichungen der fenster-hoehe (breiten sind einigermassen gleichbleibend):
var dhWinIE = 0;
var dhWinNC = 0;
var dhMacIE = 15;
var dhMacNC = 10;

if (Win) {
	if (IE)	{ myHight = myHight + dhWinIE; }
	else { myHight = myHight + dhWinNC; }
}
else {
	if (IE)	{ myHight = myHight + dhMacIE; }
	else { myHight = myHight + dhMacNC; }
}

function checkPopup() {
	if((myWnd == null) || (!myWnd.closed)) {
		setTimeout("checkPopup();",250);
	}
	else {
		window.close();
	}
}


function showPopup() {
	breite = screen.availWidth;
	hoehe = screen.availHeight;
	px = breite/2-400;
	py = hoehe/2-250;
	wndProps = "left=" + px + ",top=" + py + ",width=" + myWidth + ",height=" + myHight + ",dependend=0,scrollbars=no,status=1";
	myWnd = window.open("home.html","spielraum",wndProps);
	myWnd.moveTo(px,py);
	myWnd.focus();
	//setTimeout("checkPopup();" , 250);	//versucht den opener zu schliessen
}

function closePopup() {	// 'dependend' fuer ie
	if(!myWnd.closed) {
		myWnd.close();
	}
}

function resizeStartwin() {
	breite = screen.availWidth;
	hoehe = screen.availHeight;
	px = breite/2-400;
	py = hoehe/2-250;
		if (Win) {
			if (IE)	{ self.resizeTo(450,225); }
			else { self.resizeTo(450,225); }
		}
		else {
			if (IE)	{ self.resizeTo(450,225); }
			else { self.resizeTo(450,225); }
		}
	self.moveTo(px, py);
}

//weitere popups:

var pops = null;

function aufgehts(wosn,broadn,hechn)
{
	props = "width=" + broadn + ",height=" + hechn + ",status=1,scrollbars=1";
	if ((pops==null) || (pops.closed))
	{
		pops = window.open(wosn,"fenschta",props);
	}
	else
	{
		if (!pops.closed)
			pops.close();
		pops = window.open(wosn,"fenschta",props);
	}
}

function aufgehts_neu(wosn,broadn,hechn,fname)
{
	props = "width=" + broadn + ",height=" + hechn + ",status=1,scrollbars=1";
	window.open(wosn,fname,props);
}