var imgFG = new Image();
var imgBG = new Image();
imgFG.onload = FGready;
imgBG.onload = BGready;
var IDsujet = 1;
colorBG = ['','3D3937','444','DDD','000'];

function initStart() {
//	window.setTimeout('animateSujets()',7000);
}
function animateSujets()
{
	if (IDsujet > 2) 
		IDsujet=1;
	else
		++IDsujet;
	imgPreload();
}

function imgPreload()
{
	imgFG.src = 'http://media.networx.at/www.rika.at/layout/start_fg'+IDsujet+'.jpg';
	imgBG.src = 'http://media.networx.at/www.rika.at/layout/start_bg'+IDsujet+'a.jpg';
}
function FGready()
{
	$('centered').setStyle('background-image: url('+imgFG.src+')');
	window.setTimeout('animateSujets()',7000);
}
function BGready()
{
	$('body').setStyle('background-color: #'+colorBG[IDsujet]+'; background-image: url('+imgBG.src+')');
}