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 mainNavOver(o_div){
	if(isDOM&&!isNN6&&!isIE52&&!isIE50){
		if(currentNav)currentNav.className = "";
		clearTimeout(navTimer);
		o_div.className="navOver";
	}
}
function mainNavOut(o_div){
	if(isDOM&&!isNN6&&!isIE52&&!isIE50){
		currentNav = o_div;
		navTimer = setTimeout('currentNav.className=""',1);
	}
}