navTimer = null;
currentNav = 0;
o_navigator = navigator.userAgent
var isIE5 = (o_navigator.indexOf("MSIE 5") > -1) ? 1 : 0;
var isMac = (o_navigator.indexOf("Mac") > -1) ? 1 : 0;
var isIE50 = (o_navigator.indexOf("MSIE 5.0") > -1) ? 1 : 0;
var isIE52 = (o_navigator.indexOf("MSIE 5.2") > -1) ? 1 : 0;
var isNN6 = (o_navigator.indexOf("Netscape6") > -1) ? 1 : 0;
var isDOM = (document.getElementById) ? 1 : 0;

function navOver(id) {
  var div = document.getElementById(id);
  if (div) {
    if(currentNav) currentNav.className = "navOut";
    clearTimeout(navTimer);
    div.className = "navOver";
  }
}

function navOut(id) {
  var div = document.getElementById(id);
  if (div) {
    currentNav = div;
		navTimer = setTimeout('currentNav.className="navOut"',200);
  }
}