ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

var hideTimeout

function showObject(obj) {
	if (ns4) obj.visibility = "show"
	else if (ie4) obj.style.visibility = "visible"
	return obj
}

function hideObject(obj) {
	if(hideTimeout != null) window.clearTimeout(hideTimeout);
	if (ns4) obj.visibility = "hide"
	else if (ie4) obj.style.visibility = "hidden"
}

var swapObj = new Array();

function showLayers(tobj) {
 //var tobj
 for(i=0;i<swapObj.length;i++){hideObject(swapObj[i])}
 args = showLayers.arguments
 for(i=0;i<args.length;i++){
   if (ns4) tobj = eval("document.layers['"+args[i]+"']")
   else if (ie4) tobj = eval("document.all['"+args[i]+"']")
   swapObj[i] = showObject(tobj)
 }
}