var bName = navigator.appName;
 var bVer = parseInt(navigator.appVersion);
 var NS4 = (bName == "Netscape" && bVer >= 4);
 var IE4 = (bName == "Microsoft Internet Explorer" && bVer >= 4);
 var bok = NS4||IE4;


 var menuActive = 0;
 var menuOn = 0;
 var onLayer;
 var timeOn = null;
 var loaded = 0;
 
// MENU COLOR VARIABLE
var menuColor = "#000000";



  
// SHOW MENU
function showLayer(layerName){

 if (timeOn != null) {
  clearTimeout(timeOn);
  hideLayer(onLayer);
 }

document.getElementById(layerName).style.visibility="visible";
  
 onLayer = layerName;

}

// HIDE MENU
function hideLayer(layerName){
 if (menuActive == 0) {
 
document.getElementById(layerName).style.visibility="hidden";

 }
}

// TIMER FOR BUTTON MOUSE OUT
function btnTimer() {
 timeOn = setTimeout("btnOut()",1000)
}

// BUTTON MOUSE OUT
function btnOut(layerName) {
 if (menuActive == 0) {
  hideLayer(onLayer)
  }
}

// MENU MOUSE OVER  
function menuOver() {
 clearTimeout(timeOn)
 menuActive = 1;
}

// MENU MOUSE OUT 
function menuOut() {
 menuActive = 0 
  timeOn = setTimeout("hideLayer(onLayer)", 500)
 }