// Map Setup
    var map = new GMap(document.getElementById("map"));
    map.centerAndZoom(new GPoint(0,0), 1);
    map.addControl(new GSmallMapControl());
    map.addControl(new GMapTypeControl());
    var lastmarker = new GMarker (new GPoint(0,0));
    map.addOverlay (lastmarker);
    var showmark = 0;

    var reversegeocoder = new GReverseGeocoder(map);

    GEvent.addListener(reversegeocoder, "load",
          function(placemark) {
	    document.getElementById("locationName").innerHTML=placemark.address;
          }
    );

    function setmark(a)
    {
	showmark = a;
	refreshMap(map, 0);
    }

    // Refresh map function
    function refreshMap(map, myrefresh)
    {
    document.getElementById("loading").innerHTML="<font style='background-color :yellow'><b>&nbsp;&nbsp;Retrieving data...&nbsp;&nbsp;</b></font>";

    // AJAX XML Data Download and marker placement, straight 
    // from Google API documentation
    var request = GXmlHttp.create();
    request.open("GET", "../data.php?id="+deviceid+"&sharingcode="+sharingcode+"&RANDOM=."+Math.random(), true);
    request.onreadystatechange = function() {
      if (request.readyState == 4) {
	    var xmlDoc = request.responseXML;
	    var markers = xmlDoc.documentElement.getElementsByTagName("marker");
	    var mytime;

	    for (var a = 0; a <= (markers.length -1); a++) {
		if (parseInt(markers[a].getAttribute("minsago")) > 59) {
			var myhours = parseInt(parseInt(markers[a].getAttribute("minsago")) / 60);
			if (myhours > 24) {
				var mydays = parseInt(myhours / 24);
				myhours = parseInt(parseInt(parseInt(markers[a].getAttribute("minsago")) / 60) - (mydays * 24));
				var myminutes = (parseInt(markers[a].getAttribute("minsago")) - (60 * (myhours + (mydays * 24))));
				if (myminutes < 10) myminutes = "0"+myminutes;
				mytime = " " + mydays + "d " + myhours + "h " + myminutes + " minutes ago";
			} else {
				var myminutes = (parseInt(markers[a].getAttribute("minsago")) - (60 * myhours));
				if (myminutes < 10) myminutes = "0"+myminutes;
				mytime = " " + myhours + "h " + myminutes + " minutes ago";
			}
		} else {
			mytime = " " + parseInt(markers[a].getAttribute("minsago")) + " minutes ago";
		}
		if (showmark == a) {
			//document.getElementById("marker"+a).innerHTML = "<b>"+parseInt(markers[a].getAttribute("minsago"))+" minutes ago</b><br>";
			document.getElementById("marker"+a).innerHTML = "<b>"+mytime+"</b><br>";
		} else {
			//document.getElementById("marker"+a).innerHTML = "<a href=# onclick='setmark("+a+")'>"+parseInt(markers[a].getAttribute("minsago"))+" minutes ago</a><br>";
			document.getElementById("marker"+a).innerHTML = "<a href=# onclick='setmark("+a+")'>"+mytime+"</a><br>";
		}
	    }

	    //for (var i = 0; i <= markers.length; i++) {
	    var i = showmark;
	    if (markers[i]) {
	      var point = new GPoint(parseFloat(markers[i].getAttribute("lng")), parseFloat(markers[i].getAttribute("lat")));

		var speed = parseInt(markers[i].getAttribute("speed"));
		if (speed < 0) { 
			document.getElementById("speed").innerHTML="Unknown&nbsp;";
		} else {
			document.getElementById("speed").innerHTML=speed;
		}
		document.getElementById("accuracy").innerHTML=parseInt(markers[i].getAttribute("accuracy"));
		document.getElementById("lastupdate").innerHTML=markers[i].getAttribute("date");
		//document.getElementById("lastmins").innerHTML=parseInt(markers[i].getAttribute("minsago"));
		document.getElementById("lastmins").innerHTML=parseInt(markers[i].getAttribute("minsago"));

		
		//document.getElementById("lastconnect").innerHTML=parseInt(markers[i].getAttribute("lastconnect"));

	      // Sets a marker to the last point added in the database
	      var marker = new GMarker(point);

	      if (parseFloat(markers[i].getAttribute("lat")) + parseFloat(markers[i].getAttribute("lng")) != lastmarker) {
		 reversegeocoder = new GReverseGeocoder(map);

		    GEvent.addListener(reversegeocoder, "load",
		          function(placemark) {
		            document.getElementById("locationName").innerHTML=placemark.address;
		          }
		    );

		 reversegeocoder.reverseGeocode(new GLatLng(parseFloat(markers[i].getAttribute("lat")), parseFloat(markers[i].getAttribute("lng")))); 
	  	 //map.centerAtLatLng(point); 
	  	 map.panTo(new GLatLng(parseFloat(markers[i].getAttribute("lat")), parseFloat(markers[i].getAttribute("lng")))); 
	         map.clearOverlays(); 
	         map.addOverlay(marker);
		 map.addOverlay(GPolyline.Circle(new GLatLng(parseFloat(markers[i].getAttribute("lat")), parseFloat(markers[i].getAttribute("lng"))),markers[i].getAttribute("accuracy")));
		}
	      lastmarker = parseFloat(markers[i].getAttribute("lat")) + parseFloat(markers[i].getAttribute("lng"));
    	   }
     // Recenters map to last point added
     //map.centerAtLatLng(point); 
      }
    }
    request.send(null);

    window.setTimeout(function(){ document.getElementById("loading").innerHTML="";},500); 

    // Reloads map every 6 seconds
    if (GPSstatus == 1 && myrefresh == 1) {
	window.setTimeout(function(){ refreshMap(map,1)},6000); 
    }
    }