// JScript source code
var ns4 = (document.layers)? true:false;
var ie4 = (document.all)? true:false;
		
function show(id) {
if (ns4) document.layers[id].visibility = "show"
else if (ie4) document.all[id].style.visibility = "visible"
}

function hide(id) {
if (ns4) document.layers[id].visibility = "hide"
else if (ie4) document.all[id].style.visibility = "hidden"
}
function blink(iets,time)
{setInterval("hide('"+iets+"');setTimeout(\"show('"+iets+"')\","+(time/2)+");",time);}