google map API & XMLHttpRequest

[Craig Hopson]

hi can some one check this syntax of this cos i'm missing something it just dont workThe JS

downloadUrl("http://chsites.co.uk/track/inc/maploc.php?id='.$mapid.'&name='.$member['id'].'", function(data) {var xml = data.responseXML;                       var Center = xml.documentElement.getElementsByTagName("marker");               var map = new google.maps.Map(document.getElementById("map"), {                            center: new google.maps.LatLng(                         parseFloat(Center.getAttribute("lat")),                         parseFloat(Center.getAttribute("lon"))),                            zoom: 13,                            mapTypeId: google.maps.MapTypeId.ROADMAP,                            mapTypeControl: false,                            mapTypeControlOptions: {                            style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR                                 },                            navigationControl: true,                            navigationControlOptions: {                                    style: google.maps.NavigationControlStyle.SMALL                            }                    });}                    function downloadUrl(url, callback) {          var request = window.ActiveXObject ?                  new ActiveXObject("Microsoft.XMLHTTP") :                  new XMLHttpRequest;          request.onreadystatechange = function() {            if (request.readyState == 4) {                  request.onreadystatechange = doNothing;                  callback(request, request.status);            }          };          request.open("GET", url, true);          request.send(null);    }

The XML

<markers>         <marker lat="51.5589355" lon="0.1463353" speed="1.255" time="17:12:39 - 2012/12/04"/></markers>

[justsomeguy]

If there's a syntax error your browser will tell you that, are you checking the console?

[thescientist]

how doesn't it work? What debugging have you done to try and pinpoint the cause of your problem? At least give us something to work with when you present your problems.

Edited December 5, 2012 by thescientist

[Craig Hopson]

sorry looking back i was vague. OK a simple Google map API V3 would be HTML

<script type="text/javascript"	  src="https://maps.googleapis.com/maps/api/js?key=AIzaSyC9drFQnsmuob_bO9wFITHv-5K2pM-lgD0&sensor=false"></script> <script type="text/javascript">var map = new google.maps.Map(document.getElementById("map"), {			    center: new google.maps.LatLng(LATITUDE,LONGITUDE),   //THIS MUST BE A POSITION (you understand)			    zoom: 13,			    mapTypeId: google.maps.MapTypeId.ROADMAP,			    mapTypeControl: false,			    mapTypeControlOptions: {			    style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR				 },			    navigationControl: true,			    navigationControlOptions: {				    style: google.maps.NavigationControlStyle.SMALL			    }		    });</script>

OK this will show a map with the center of the map whatever LATITUDE,LONGITUDE you put in i wish to update the map center every 10 seconds with new coordinates (the script in first post)

[justsomeguy]

What about your code isn't working? Is it parsing the XML and can you get the correct latitude and longitude? Do you want to build a new map every time or update an existing one?

[Craig Hopson]

just update the existing one i thing i've found something its panTo() i thing i need to use this