// Adobe rollover stuff.

userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1), 10);
var preloadFlag = false;

function newImage(arg) {
    if (document.images) {
        rslt = new Image();
        rslt.src = arg;
        return rslt;
    }
}

function findElement(n,ly) {
    if (browserVers < 4) {
		return document[n];
    }
    var curDoc = ly ? ly.document : document;
    var elem = curDoc[n];
    if (!elem) {
        for (var i = 0; i < curDoc.layers.length; i++) {
            elem = findElement(n,curDoc.layers[i]);
            if (elem) {
                return elem;
            }
        }
    }
    return elem;
}

function changeImages() {
    if (document.images && preloadFlag) {
        var img;
        for (var i = 0; i < changeImages.arguments.length; i += 2) {
            img = null;
            if (document.layers) {
                img = findElement(changeImages.arguments[i],0);
            } else {
                img = document.images[changeImages.arguments[i]];
            }
            if (img) {
                img.src = changeImages.arguments[i+1];
            }
        }
    }
}

function setPreloadFlag() {
    preloadFlag = true;
}

function preloadImages() {
    if (document.images) {
        where_over      = newImage("images/where-over.gif");
        register_over   = newImage("images/register-over.gif");
        mailing_over    = newImage("images/mailing-over.gif");
        setPreloadFlag();
    }
}