function changePic(imgGroupID) {
    var imgList = new Array()
    var imgCount = 0
    
    if (imgCount > 0) 
    {
        var strImg = imgList[Math.floor(Math.random()*imgCount+1)-1]
        var featureImageElement = document.getElementById('featureImage');
        featureImageElement.setAttribute('src',strImg);
        changePic = true
    }
}