function resizeAndMove(w, h)
{	
	resize = window.resizeTo(w,h);
	x = (screen.availWidth- w)/2;
	y = (screen.availHeight - h)/2;
	move =  window.moveTo(x, y);
	return;
}

function PopUp(w,h,ziel)
{
	h = h - 20; var x=0, y=0, parameter="";
	if (w < screen.availWidth || h < screen.availHeight)
	{
		x = (screen.availWidth - w - 12) / 2;
		y = (screen.availHeight - h - 104) / 2;
		if (window.opera) y = 0;
		if (x<0 || y<0)
		{
			x=0; y=0;
		}
		else parameter = "width=" + w + ",height=" + h + ",";
	}
	parameter += "left=" + x + ",top=" + y;
	parameter += ",menubar=no,location=no,toolbar=no,status=no";
	parameter += ",resizable=yes,scrollbars=auto";
	var Fenster = window.open(ziel,"PopUp",parameter);
	if (Fenster) Fenster.focus();
	return !Fenster;
}