if (document.images) {
    var aaa = new Image();
    aaa.src = "/img/nav1a.gif";
    var aan = new Image();
    aan.src = "/img/nav1.gif";
    var bba = new Image();
    bba.src = "/img/nav2a.gif";
    var bbn = new Image();
    bbn.src = "/img/nav2.gif";
    var cca = new Image();
    cca.src = "/img/nav3a.gif";
    var ccn = new Image();
    ccn.src = "/img/nav3.gif";

}

function act(imgName) {
    if (document.images)
        document[imgName].src = eval(imgName + 'a.src');
}
function inact(imgName) {
    if (document.images)
        document[imgName].src = eval(imgName + 'n.src');
}


var loaded = false;
var popTimer = false;
// Browser version detection
var isNS4 = (document.layers) ? true : false;
var isIE4 = (document.all && !document.getElementById) ? true : false;
var isIE5 = (document.all && document.getElementById) ? true : false;
var isNS6 = (!document.all && document.getElementById) ? true : false;

/* 
This function either shows or hides the Popper (indicated on function 
initiation by either a 1 or 0. 1 show's the Popper, 0 hides it.)
*/
function setTimer() {
    clearTimeout(popTimer);
    popTimer = setTimeout('hideAllPoppers();', 3000);
}

function showPopper(whichMenu, show) {
    hideAllPoppers();
    setTimer();
    if (isNS4) {
        var menu = document.layers[whichMenu];
        if (show == 1) {
            menu['visibility'] = 'visible';

        } else {
            menu['visibility'] = 'hidden';
        }
    }
    else if (isIE4) {
        var menu = document.all[whichMenu].style;
        if (show == 1) {
            menu['visibility'] = 'visible';
        } else {
            menu['visibility'] = 'hidden';
        }
    }
    else if (isIE5 || isNS6) {
        var menu = document.getElementById(whichMenu);
        if (show == 1) {
            menu.style.visibility = "visible";
        } else {
            menu.style.visibility = "hidden";
        }
    }
}

function hideAllPoppers() {
    if (isNS4) {
        // Repeat these 2 lines for every individual menu.
        var menu1 = document.layers["sub1"];
        menu1['visibility'] = 'hidden';
        var menu2 = document.layers["sub2"];
        menu2['visibility'] = 'hidden';
        var menu3 = document.layers["sub3"];
        menu3['visibility'] = 'hidden';
        var menu4 = document.layers["sub4"];
        menu4['visibility'] = 'hidden';
        var menu5 = document.layers["sub5"];
        menu5['visibility'] = 'hidden';
        var menu6 = document.layers["sub6"];
        menu6['visibility'] = 'hidden';
        var menu7 = document.layers["sub7"];
        menu7['visibility'] = 'hidden';
        var menu8 = document.layers["sub8"];
        menu8['visibility'] = 'hidden';
        var menu9 = document.layers["sub9"];
        menu9['visibility'] = 'hidden';
        var menu10 = document.layers["sub10"];
        menu10['visibility'] = 'hidden';
        
      
    }
    else if (isIE4) {
        // Repeat these 2 lines for every individual menu.
        var menu1 = document.all.sub1.style;
        menu1['visibility'] = 'hidden';
        var menu2 = document.all.sub2.style;
        menu2['visibility'] = 'hidden';
        var menu3 = document.all.sub3.style;
        menu3['visibility'] = 'hidden';
        var menu4 = document.all.sub4.style;
        menu4['visibility'] = 'hidden';
        var menu5 = document.all.sub5.style;
        menu5['visibility'] = 'hidden';
        var menu6 = document.all.sub6.style;
        menu6['visibility'] = 'hidden';
        var menu7 = document.all.sub7.style;
        menu7['visibility'] = 'hidden';
        var menu8 = document.all.sub8.style;
        menu8['visibility'] = 'hidden';
        var menu9 = document.all.sub9.style;
        menu9['visibility'] = 'hidden';
        var menu10 = document.all.sub10.style;
        menu10['visibility'] = 'hidden';
        
   
    }
    else if (isIE5 || isNS6) {
        // Repeat these 2 lines for every individual menu.
        var menu1 = document.getElementById("sub1");
        menu1.style.visibility = "hidden";
        var menu2 = document.getElementById("sub2");
        menu2.style.visibility = "hidden";
        var menu3 = document.getElementById("sub3");
        menu3.style.visibility = "hidden";
        var menu4 = document.getElementById("sub4");
        menu4.style.visibility = "hidden";
        var menu5 = document.getElementById("sub5");
        menu5.style.visibility = "hidden";
        var menu6 = document.getElementById("sub6");
        menu6.style.visibility = "hidden";
        var menu7 = document.getElementById("sub7");
        menu7.style.visibility = "hidden";
        var menu8 = document.getElementById("sub8");
        menu8.style.visibility = "hidden";
        var menu9 = document.getElementById("sub9");
        menu9.style.visibility = "hidden";
        var menu10 = document.getElementById("sub10");
        menu10.style.visibility = "hidden";
        
    
    }
}