var win = null;

// ===============================================================================================================================

function NewWindow(mypage, myname, w, h, scroll)
{	
	
	if (win && !win.closed) win.close();

	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable';
	win = window.open(mypage, myname, settings);
	if (win.window.focus) { win.window.focus(); }
}

// ===============================================================================================================================

function getViewport(returnmode)
{
	// Gibt Höhe oder Breite des Viewports zurück
	// returnmode == 1 gibt viewportheight zurück
	// returnmode == 2 gibt viewportwidth zurück
	var viewportwidth;
	var viewportheight;
	 
	// standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
	if (typeof(window.innerWidth) != 'undefined')
	{
		viewportwidth = window.innerWidth;
		viewportheight = window.innerHeight;
	}
	 
	// IE6 in standards compliant mode
	else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0)
	{
		viewportwidth = document.documentElement.clientWidth;
		viewportheight = document.documentElement.clientHeight;
	}
	 
	// older versions of IE 
	else
	{
		viewportwidth = document.getElementsByTagName('body')[0].clientWidth;
		viewportheight = document.getElementsByTagName('body')[0].clientHeight;
	}
	
	if (returnmode == 1) return viewportheight;
	else return viewportwidth;
	
}

// ===============================================================================================================================

function setHeightSpacer(myValue)
{
	// Setzt Höhe für pt.gif
	var spacerHeight;
	var myHeight = getViewport(1); // aktuelle Höhe Viewport holen
	myValue = myValue || 224; 
	if (document.all) myValue = myValue - 0; // Wenn IE
	
	if (myHeight > 0)
	{
		spacerHeight = myHeight - myValue;
		document.getElementById("hoehenspacer").style.height = spacerHeight + "px";
	}
}