function show(image) {
var a = document.getElementById("ancoraggio"+image+"");
var f = new Array()
f[1] = "images/fmain_1.jpg";
f[2] = "images/fmain_2.jpg";
f[4] = "images/fmain_4.jpg";
f[6] = "images/fmain_6.jpg";
f[7] = "images/fmain_7.jpg";
f[8] = "images/fmain_8.jpg";
f[9] = "images/fmain_9.jpg";
f[12] = "images/fmain_12.jpg";
f[13] = "images/fmain_13.jpg";
f[14] = "images/fmain_14.jpg";
f[15] = "images/fmain_15.jpg";
var url = f[image];
a.setAttribute('href', url);
myLightbox.start(a);
}