function checkname(name)
{
	for (i=0; i<parent.frames.length; ++i)
        {
          if (parent.frames[i].name==name) 
            return i;
        }
	return name;
}

function ZweiFrames(url1, frame1, url2, frame2)
{
        framenum1=checkname(frame1);
	top[framenum1].location.href=url1;
        framenum2=checkname(frame2);
	top[framenum2].location.href=url2;
}

function FrameAendern(frame)
{
	parent['navigator'].location.href="navi_start.html";
}