var subNavDivs = new Array("");

// get the sub nav divs
function getSubNavDivs () {

    // the array of segment names
    divNames = document.getElementsByTagName("DIV");

    for (i=0; i < divNames.length; i++) {
        // only need to know about the dynamic ones
        if (divNames[i].id.indexOf("subnav_") != -1) {
            subNavDivs[subNavDivs.length] = divNames[i].id;
        }
    }
}

// show the nav menu
function toggleSubNavMenu (el) {
    for (var snd in subNavDivs) {
        var menu = document.getElementById(el);
        menu.style.display = (menu.style.display == "block") ? "none" : "block";
        // menu.style.display = ((menu.style.display == "block") || (snd != el)) ? "none" : "block";
    }
}

// write an email to the screen to prevent spidering
function antiSpamEmail (username, domain, purdyStr, cssClass) {
    purdyStr = (purdyStr == "") ? (username + "@" + domain) : purdyStr;
    var cssTag = (cssClass == "") ? "" : ("CLASS=\"" + cssClass + "\"");
    document.write("<A " + cssTag + " HREF=\"mailto:" + username + "@" + domain + "\">" + purdyStr + "</A>");
}