error XMLHttpRequest cannot load http://192.168.2.53:8080/mobileDX2/index.php/main/gettest?callback=?start=1&limit=5. Origin null is not allowed by Access-Control-Allow-Origin. แก้ไงค่ะ

 <script>
	$(document).ready(function()
	{
	var url =  URL_JOBORDER_LISTALL;
	var vals = "callback=?start="+start+"&limit="+limit;
	$.getJSON(url , vals , function(rws) {  
		alert("1");
		$('#tweet-list').empty();
		start = val.start;
		alert("2");
		for(var i=0 ; i < rws.data.length ; i++){ 
			//TimeStamp change Date from 1301090400 = 2013-05-14
			var date = new Date(rws.data[i].created*1000);
			var postdate = date.getDate()+"-"+(date.getMonth()+1)+"-"+date.getFullYear();
			//format Date
			var pick = rws.data[i].jd_location_1_datetime;
			var pickup = pick.substring(0,10).split("-");
			var pickupdate = pickup[2]+"-"+pickup[1]+"-"+pickup[0];
			var deli = rws.data[i].jd_location_2_datetime;
			var delivery = deli.substring(0,10).split("-");
			var deliverydate = delivery[2]+"-"+delivery[1]+"-"+delivery[0];
			$('#tweet-list').append('<tr><td rowspan=7 scope=col>'+'<img src="file:///android_asset/www/img/car/10 wheels.png"/>'+'</td><td scope=col>'+val.data[i].title+'</td></tr>');		    					
			$('#tweet-list').append('<tr><td>'+"Routeval : "+rws.data[i].p_orgin+" - "+rws.data[i].p_detination+'</td></tr>');
			$('#tweet-list').append('<tr><td>'+"Post Date : "+postdate+'</td></tr>');
			$('#tweet-list').append('<tr><td>'+"PickUp Date : "+pickupdate+'</td></tr>');
			$('#tweet-list').append('<tr><td>'+"Delivery Date : "+deliverydate+'</td></tr>');
			$('#tweet-list').append('<tr><td>'+"Job NUmber : "+rws.data[i].jo_number+'</td></tr>');
			$("#tweet-list").append('<hr>');	
		}	
	});
});
</script>