//setTimeout("changeImg()",3000);

function slider()
{
  var t=setTimeout("changeImg()",5000);
}

function changeImg()
{
  if(document.getElementById("slider").innerHTML.match("./img/banner/ema_banner.gif"))
    {
       document.getElementById("slider").innerHTML = '<a href="./index.php?p=p_markt&l=deat"><img id="slider" src="./img/banner/ema_banner2.gif" border="0"></a>';
    }
    else
    {
	document.getElementById("slider").innerHTML = '<a href="./index.php?p=p_mktanalyser&l=deat"><img id="slider" src="./img/banner/ema_banner.gif" border="0"></a>';
    } 
    slider();
}