var myitem;
if (document.layers) { 
layerRef=".layers[";
styleRef="]";
}
else if (document.all) { 
layerRef=".all[";
styleRef="].style";
}
else if (document.getElementById) { 
layerRef=".getElementById(";
styleRef=").style";
}

function toon(myitem)
{
eval
("document"+layerRef+"'"+myitem+"'"+styleRef+".display='inline'");
}
function weg(myitem)
{
eval ("document"+layerRef+"'"+myitem+"'"+styleRef+".display='none'");
}
//-->