// Hides and shows submenus and highlights appropriate button
function subnav(menuName, buttonName) {

// detect modern, DOM-compliant browsers
if (!document.getElementById) return;

	var menuName = document.getElementById(menuName);

	if (menuName.style.display == "none") {
		menuName.style.display = "";
		//if (buttonName.className.indexOf("selected") == -1) {
			buttonName.className = stringReplace(buttonName.className, "menu", "menu-s");
		//}
	}

	else {
		menuName.style.display = "none";
		//if (buttonName.className.indexOf("selected") == -1) {
			buttonName.className = stringReplace(buttonName.className, "menu-s", "menu");
		//}
	}
}


function stringReplace(theString, replaceMe, withMe) {
    var rExp;
    var temp = "";
    var newReplaceMe = "";
    for (var x = 0 ; x < replaceMe.length ; x++) {
        temp = replaceMe.substr(x, 1);
        if (
            temp == "$" ||
            temp == "^" ||
            temp == "*" ||
            temp == "(" ||
            temp == ")" ||
            temp == "+" ||
            temp == "?" ||
            temp == "\\"
           ) {
           temp = "\\" + temp;
        }
        newReplaceMe += temp
    }
    rExp = new RegExp(newReplaceMe, "gi");
    results = theString.replace(rExp, withMe);
    return results;
}

function navTracking() {
	if(document.getElementById != null) {
    var navBox = document.getElementById('nav');
    if(navBox != null) {
        var navAnchors = navBox.getElementsByTagName('a');
        for(i=0; i < navAnchors.length; i++) {
            if(navAnchors[i].className == 'menu') continue;
            var href = new String(navAnchors[i].href);
            if(href.indexOf('window.open') != -1) continue;
            navAnchors[i].href += ((href.indexOf('?') != -1) ? '&' : '?') + "CM.src=Navigation";
        }    
    }
}
}