<!-- auskommentieren

/* Browserabfrage: Layer-Object bekannt? */
var z;
if (document.layers)
      {ns = 1; ie = 0;}
else  {ns = 0; ie = 1;}
/* CrossBrowser */
function init() {if (ns) ebene=document.image1;
                 if (ie) ebene=image1.style;}
/* Funktion Schicht anzeigen */
function show(name) {if (ns)
                    {document.layers[''+ name].visibility = "show";}
					else
					{document.all[''+ name].style.visibility = "visible";}
                    }
function hide(name) {if (ns)
                    {document.layers[''+ name].visibility = "hide";}
					else
					{document.all[''+ name].style.visibility = "hidden";}
                    }	


function layerchange(layer,layer2,layer3,layer4)
{
if(z) { window.clearTimeout(z); }
show(layer);
hide(layer2);
hide(layer3);
hide(layer4);
}

function clear()
{
if(z) { window.clearTimeout(z); }
hide('layer1');
hide('layer2');
hide('layer3');
hide('layer4');
}

//-->