var ie4=document.all
var ns6=document.getElementById
if (ie4||ns6)
var contentobj=document.getElementById? document.getElementById("dynamic3"): document.all.dynamic3

function changeDisplay(caption){
if (ie4||ns6){
document.getElementById("dynamic3").innerHTML=eval(caption)
} else if (document.layers){
document.dynamic1.document.dynamic2.document.write(eval(caption))
document.dynamic1.document.dynamic2.document.close()
}
}

function prevPhoto() {
window.focus()
photoNum = 1 + (numPhotos + photoNum - 2) % numPhotos;
filter('changer','photo' + photoNum);
changeDisplay('photo' + photoNum + '_text');
}

function nextPhoto() {
window.focus()
photoNum = 1 + (numPhotos + photoNum) % numPhotos;
filter('changer','photo' + photoNum);
changeDisplay('photo' + photoNum + '_text');
}

function filter(imagename,objectsrc){
if (document.images)
document.images[imagename].src=eval(objectsrc+".src")
}