var oRoll1, oRoll2, oRoll3;

function initPage()
{
    oRoll1 = new RollImage('pic-home-4');
    oRoll2 = new RollImage('pic-home-3');
    oRoll3 = new RollImage('pic-home-mcgladrey');
    Nifty("div#pgalink","bottom big transparent");
}

function RollImage(sVal)
{
    this.imgRef = document.getElementById(sVal);
    this.onImg = GetNewImage(sVal + '-s');
    this.offImg = GetNewImage(sVal);
}

function GetNewImage(sVal)
{
    var oImg = new Image();
    oImg.src = '/images/' + sVal + '.jpg';
    return oImg;
}

function imgOn(sVal)
{
    switch(sVal)
    {
        case 'pic-home-4':
            oRoll1.imgRef.src = oRoll1.onImg.src;
            break;
        case 'pic-home-3':
            oRoll2.imgRef.src = oRoll2.onImg.src;
            break;
        case 'pic-home-mcgladrey':
            oRoll3.imgRef.src = oRoll3.onImg.src;
            break;
    }
}

function imgOff(sVal)
{
    switch(sVal)
    {
        case 'pic-home-4':
            oRoll1.imgRef.src = oRoll1.offImg.src;
            break;
        case 'pic-home-3':
            oRoll2.imgRef.src = oRoll2.offImg.src;
            break;
        case 'pic-home-mcgladrey':
            oRoll3.imgRef.src = oRoll3.offImg.src;
            break;
    }
}