function get_focus(frm,chp)
{
document.forms[frm].elements[chp].focus();
}

function set_all()
{
var numimages=4;
rndimg = new Array("images/scripts/headers_global/header_01.png", "images/scripts/headers_global/header_02.png", "images/scripts/headers_global/header_03.png", "images/scripts/headers_global/header_04.png"); 
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
document.getElementById("header").style.backgroundImage = "url("+ randomimage +")"; 
}


function set_all_hiver()
{
var numimages=4;
rndimg = new Array("images/scripts/headers_hiver/header_01.png", "images/scripts/headers_hiver/header_02.png", "images/scripts/headers_hiver/header_03.png", "images/scripts/headers_hiver/header_04.png"); 
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
document.getElementById("header").style.backgroundImage = "url("+ randomimage +")"; 
}

function set_all_noel()
{
var numimages=4;
rndimg = new Array("images/scripts/headers_noel/header_01.png", "images/scripts/headers_noel/header_02.png", "images/scripts/headers_noel/header_03.png", "images/scripts/headers_noel/header_04.png"); 
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
document.getElementById("header").style.backgroundImage = "url("+ randomimage +")"; 
}

function set_all_stvalentin()
{
var numimages=4;
rndimg = new Array("images/scripts/headers_valentin/header_01.png", "images/scripts/headers_valentin/header_02.png", "images/scripts/headers_valentin/header_03.png", "images/scripts/headers_valentin/header_04.png"); 
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
document.getElementById("header").style.backgroundImage = "url("+ randomimage +")"; 
}

function set_all_halloween()
{
var numimages=4;
rndimg = new Array("images/scripts/headers_halloween/header_01.png", "images/scripts/headers_halloween/header_02.png", "images/scripts/headers_halloween/header_03.png", "images/scripts/headers_halloween/header_04.png"); 
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
document.getElementById("header").style.backgroundImage = "url("+ randomimage +")"; 
}

function reload(form)
{
var val=form.cat.options[form.cat.options.selectedIndex].value;
self.location='?Page=Realisations&Cat=' + val ;
}