function start(){
	var total = 2;
	var numero = Math.floor(Math.random() * total)
	document.body.style.background = "#F1F3DE url(../images/interna_h_" + numero + ".jpg) no-repeat top center";
	document.getElementById('rand').src = "../images/int_h_" + numero + ".jpg";
	if(document.body.offsetWidth < 944){
		document.getElementById('rand').style.right = -230 + "px";
	}
}
onload = start;
onresize = start;