var zeit = 0;

function pos()  {
  if (document.getElementById)  {
    if (window.innerWidth) {
      y = window.pageYOffset;
      x = y + window.innerHeight - 60;
      if ((x>270)&&(y>190))  {
        document.getElementById("oben").style.visibility="visible";
        document.getElementById("oben").style.top = x + "px";
      }
      else document.getElementById("oben").style.visibility="hidden";
      zeit = setTimeout("pos()",100);
    }
    else document.getElementById("oben").style.visibility="hidden";
  }
}

function em(em1,em2,em3,em4,em5,em6,em7)  {
 if  (document.getElementById) {
  ad = em5+'@'+em1+'.'+em4;
  if (em7) ad2 = em7; else ad2 = ad; 
  ht = em6 + '<a href="mailto:'+ ad + '">' + ad2 + '</a>';
  if (document.getElementById(em2)) document.getElementById(em2).innerHTML = ht;
 }
}

function termin(nr)  {
  if (document.getElementById)  {
    ix = "i" + nr;
    bx = "b" + nr;
    document.getElementById(bx).style.display="block";
    document.getElementById(ix).style.display="none";
  }  
}

function ctermin(nr)  {
  if (document.getElementById)  {
    ix = "i" + nr;
    bx = "b" + nr;
    document.getElementById(ix).style.display="inline";
    document.getElementById(bx).style.display="none";
  }  
}