#j_imageChange *
{
    padding:0;
    margin:0;
}
#j_imageChange
{
    width:720px;
    height:500px;
    background-image:url(../../images_BASE/loadingAnimation.gif);
    background-repeat:no-repeat;
    background-position:center center;
    overflow:hidden;
}
#j_imageChange #imgMain
{
    width:720px;
    height:500px;
    float:left;
}