var config = 	{
					trafficSettings : 	{
											refreshTime 		: 	10000,
											imgPath				:	'http://www.octotelematics.net/traffico/traffic/romaest.gif',
											imageId				:	'imgTrafficoRomaEst'
										}
				};

var traffigImage =	{
					functions	:	{
											startRefresh	:	function(){
												$('#'+config.trafficSettings.imageId).attr('src',config.trafficSettings.imgPath + '?foo=' + Math.floor(Math.random()*9999));
												traffigImage.functions.bindRefresh();
											},
											
											bindRefresh		:	function(){
												window.setTimeout("traffigImage.functions.startRefresh()", config.trafficSettings.refreshTime)
											}
									}
				};

$(document).ready(function(){
	traffigImage.functions.bindRefresh();
});