var pix_all = new Array();
var pix_sel = new Array();

var pix_zoom_folder="images/diapo/zoom/";
var pix_vign_folder="images/diapo/vign/";

var pix_zoom_ext=".jpg";
var pix_vign_ext=".jpg";

var pix_num_max;
var cur_pix_num;



//*
function pix_init() {

pix_all = new Array
("RP002F08"
,"DP16P17A"
,"DL80N22A"
,"D768"
,"RP004F01"
,"R039"
,"S671"
,"D63_455"
,"RP001N13"
,"D63335"
,"DVMCP15"
);

pix_num_max = pix_all.length-1;
cur_pix_num = Math.round((pix_num_max - 1) * Math.random());

pix_offset_vign_zoom(0);
}

//*
function pix_offset_vign_zoom(offset) {
cur_pix_num = pix_decal(cur_pix_num + offset);

pix_sel[0] = cur_pix_num;//zoom

pix_sel[1] = pix_decal(cur_pix_num+1);//vign_1
pix_sel[2] = pix_decal(cur_pix_num+2);//vign_2
pix_sel[3] = pix_decal(cur_pix_num+3);//vign_3
pix_sel[4] = pix_decal(cur_pix_num+4);//vign_4

pix_display();
}

//*
function pix_decal(pix_num) {
if (pix_num > pix_num_max) {
	pix_num = (pix_num % pix_num_max) - 1;
} else if (pix_num < 0) {
	pix_num = pix_num_max + (pix_num % pix_num_max) + 1;
}
return pix_num;
}

//*
function pix_swap_vign_zoom(vign_num) {
pix_swap = pix_sel[0];
pix_sel[0] = pix_sel[vign_num];
pix_sel[vign_num] = pix_swap;
pix_display();
}


//*
function pix_display() {
document["zoom"].src = pix_zoom_folder + pix_all[pix_sel[0]] + pix_zoom_ext;
document["vign_1"].src = pix_vign_folder + pix_all[pix_sel[1]] + pix_vign_ext;
document["vign_2"].src = pix_vign_folder + pix_all[pix_sel[2]] + pix_vign_ext;
document["vign_3"].src = pix_vign_folder + pix_all[pix_sel[3]] + pix_vign_ext;
document["vign_4"].src = pix_vign_folder + pix_all[pix_sel[4]] + pix_vign_ext;
}