function auf(fenster)
{
 f1 = open(fenster,"Fenster1","width=400,height=325");
}

function auf_agb(fenster)
{
 f1 = open(fenster,"Fenster1","width=420,height=420");
}

function auf_zeiten(fenster)
{
 f1 = open(fenster,"Fenster1","width=230,height=190");
}

function auf_anfahrt(fenster)
{
 f1 = open(fenster,"Fenster1","width=320,height=510");
}