Browser="";
if(navigator.appName.indexOf("Netscape")==-1)
Browser="IE"
else
{
if (document.layers)
Browser="NS4";
else
Browser="NS6";
}

No3 = (parseInt(navigator.appVersion) > 3) ? 1:0;
layer = (document.all && No3) ? "document.all['L'+menu].style" : (document.layers && No3) ? "document.layers['L'+menu]" : 0;
if (Browser =="NS6")layer= (document.getElementById) ? "document.getElementById('L'+menu).style" :(document.layers && No3) ? "document.layers['L'+menu]" : 0;

var timer;
function Show() { if(layer) {
if(timer) clearTimeout(timer);
for(menu=0; menu<Layer.length; menu++) { if(Layer[menu]) { eval(layer).visibility = "hidden"; } }
for(i=0; i<arguments.length; i++) { menu=arguments[i]; eval(layer).visibility = "visible"; }
} }
function Hide() { timer = setTimeout("Show()", 160); }