$(document).ready(rAutoRefresh);

function clocky(){
    var date = new Date();
	  var time = date.getTime();
		$.getJSON("data_json.php?t="+time, function(j){
		$('#clocker').empty();
		$('#clocker').append(j['clocker']);
		})
};

function rAutoRefresh(){
    clocky();
    //eval("setTimeout(\"rAutoRefresh();\", "+(30000)+");");
}