if (document.images) {
img1 = new Image();
img1.src = "images/link1a.gif";
img2 = new Image();
img2.src = "images/link2a.gif";
img3 = new Image();
img3.src = "images/link3a.gif";
img4 = new Image();
img4.src = "images/link4a.gif";
img5 = new Image();
img5.src = "images/link5a.gif";
img6 = new Image();
img6.src = "images/dot_on.gif";
img7 = new Image();
img7.src = "images/loading.gif";
img8 = new Image();
img8.src = "images/link6a.gif";
}

function linkOn(num)
{
document.images['link' + (num)].src = "images/link"+(num)+"a.gif"
}

function linkOff(num)
{
document.images['link' + (num)].src = "images/link"+(num)+".gif"
}

function dotOn(num)
{
document.images['dot' + (num)].src = "images/dot_on.gif"
}

function dotOff()
{
for (i=1; i<30; i++) {
document.images['dot' + (i)].src="images/dot.gif"
}
document.images['dot' + (cnt)].src="images/dot2.gif"

}

var cnt = 1;

function switchPic(num) {
document.images.pic.src="images/loading.gif";
for (i=1; i<30; i++) {
document.images['dot' + (i)].src="images/dot.gif"
}

cnt=num;

document.images['dot' + (num)].src="images/dot2.gif"

document.images.pic.src="images/gallery" + (num) + ".jpg"
}

function nextLink() {
document.images.pic.src="images/loading.gif";
cnt=((cnt)+1);

if ((cnt)>29)
{
cnt=29;
self.location="contact.html";
}

for (i=1; i<30; i++) {
document.images['dot' + (i)].src="images/dot.gif"
}
document.images['dot' + (cnt)].src="images/dot2.gif"
document.images.pic.src="images/gallery" + (cnt) + ".jpg"
}

function lastLink() {
document.images.pic.src="images/loading.gif";
cnt = ((cnt)-1);
if ((cnt)<1)
{
cnt=1;
}
for (i=1; i<30; i++) {
document.images['dot' + (i)].src="images/dot.gif"
}
document.images['dot' + (cnt)].src="images/dot2.gif"

document.images.pic.src="images/gallery" + (cnt) + ".jpg"
}