var reload_rate = 5;
var position = 0;

var images = new Array();

function update_picture() {
	$("#conright").fadeOut(500, function() {
		$("#conright").css("background","url("+urls[position]+") center no-repeat");
		$("#conright").fadeIn(500);	
	});

	window.setTimeout("update_picture()",reload_rate*1000);
	position++;
	if (position>=urls.length) position=0;
}

function first_picture() {
	if (urls.length>0) {
		$("#conright").hide();
		$("#conright").css("background","url("+urls[position]+") center no-repeat");
		$("#conright").fadeIn(1000);	
		if (position>=urls.length) position=0;
		if (urls.length>1)
			window.setTimeout("update_picture()",reload_rate*1000);
	}	
}

function preload() {
	for(var i=0; i<urls.length ;i++) {
	images[i] = new Image();
	images[i].src = urls[i];
	}
	first_picture();
}

$(document).ready(preload);