if (document.images) {
img1 = new Image();
img1.src = "/pages/images/arrow_on.gif";
img2 = new Image();
img2.src = "/pages/images/frontphoto2.jpg";
img3 = new Image();
img3.src = "/pages/images/frontphoto3.jpg";
img4 = new Image();
img4.src = "/pages/images/frontphoto4.jpg";
}

function ArrowOn(num)
{
document.images['arrow' + (num)].src = "/pages/images/arrow_on.gif"
}

function ArrowOff(num)
{
document.images['arrow' + (num)].src = "/pages/images/arrow.gif"
}

var picnum=1;

function switchPics(){
picnum++;
if ((picnum)>4){
picnum=1;
}
document.images.slide.src='/pages/images/frontphoto'+(picnum)+'.jpg';

}