function show(image, folder) {
var a = document.getElementById(folder+image+"");
var f = new Array()
f[1] = "images/tour/"+folder+"/screenshots/1.jpg";
f[2] = "images/portfolio/dbv/screenshots/2.jpg";
f[3] = "images/portfolio/dbv/screenshots/3.jpg";
var url = f[image];
a.setAttribute('href', url);
myLightbox.start(a);
}