Google Maps - Stop pop up for points with no info to show

Posted on 2012-04-05
Last Modified: 2012-08-14

I'm working on a villa rntal site and want to have pop up windows where a villa has information, but no pop up windows if there is no information.  I'm not good at Javascript, and think that an if/end if should work on the function creating the map click, but am not sure how to do this.  Properties with info will have a green icon (type=green;) and properties without info would have a different icon, so I'm hoping it would be possible to only call the pop-up function if the type= green.

Here's my code:

<script language="javascript" src=""></script>
<script type="text/javascript" src=""></script>
<script type="text/javascript">

      var customIcons = {
            green: {
                  icon: '',
                  shadow: ''

      var xmlsource = '<%=xmlss%>';
      $(document).ready(function() {
            var latlng = new google.maps.LatLng(<%=lat%>, <%=lng%>);
            var myOptions = {
                  zoom: <%=zoom%>,
                  center: latlng,
                  mapTypeId: google.maps.MapTypeId.HYBRID
            var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
//        var marker2 = new GMarker(center, {draggable: true});  
//        map.addOverlay(marker2);
//            var marker = new google.maps.Marker({ map: map, position: latlng, icon: icon.icon, shadow: icon.shadow });
//            google.maps.event.addListener(marker);
            var infoWindow = new google.maps.InfoWindow;
            $( $.parseXML( xmlsource ) ).find("marker").each(function() {
//            $(xmlsource).find("marker").each(function() {
                  var name = $(this).attr("name");
                  var town = $(this).attr("town");
                  var typer = $(this).attr("typer");
                  var beds = $(this).attr("beds");
                  var thumb = $(this).attr("thumb");
                  var distance = $(this).attr("distance");
                  var type = $(this).attr("type");                  
//                  var type = "green";
                  var lat = parseFloat($(this).attr("lat"));
                  var lng = parseFloat($(this).attr("lng"));
                  var point = new google.maps.LatLng(lat, lng);
                  var html = '<div id="content">';
//                  html += '<div id="siteNotice">' + '</div>';
                  html += '<h3 id="firstHeading" class="firstHeading">' + name + '</h3>'
                  html += '<div id="bodyContent">'
                  html += '<img src="' + thumb + '" height="120" width="160"/><br />' + town + '&nbsp;Bedrooms:' + beds
                  html += '&nbsp;Distance:' + distance
                  html += '</div>';
                  html += '</div>';
                  var icon = customIcons[type] || {};
                  var marker = new google.maps.Marker({ map: map, position: point, icon: icon.icon, shadow: icon.shadow });
                  bindInfoWindow(marker, map, infoWindow, html);
      function bindInfoWindow(marker, map, infoWindow, html) {
            google.maps.event.addListener(marker, 'click', function() { infoWindow.setContent(html);, marker); });


Thanks in advance for your help!
Question by:Nico2011
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LVL 38

Accepted Solution

Tom Beck earned 500 total points
ID: 37810643
I'm assuming you intend to have at least one more color:

     var customIcons = {
            green: {
                  icon: '',
                  shadow: ''
            red: {
                  icon: '',
                  shadow: ''

If so, then you could do this:
              /*the rest of your code*/ 

                        var icon = customIcons[type];
                        var marker = new google.maps.Marker({ 
                            map: map, 
                            position: point, 
                            icon: icon.icon, 
                            shadow: icon.shadow 
                        if(type == 'green'){
                            bindInfoWindow(marker, map, infoWindow, html);

                        /*the rest of your code*/

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Author Comment

ID: 37810993
Thanks but for some reason (*I* am probably the reason), it's not working... you can see the page here:

Thnks and hope to hear from you soon!
LVL 38

Expert Comment

by:Tom Beck
ID: 37811709
The link you provided does not reflect the changes I suggested. Maybe you forgot to upload the latest version?
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Author Comment

ID: 37811826
Right - I think I need a holiday - I wrote the code in the wrong page - really sorry - I did say the issue was probably me, but didn't imagin doing anything quite so embarassingly dumb!

Thank you - it works perfectly!

Author Closing Comment

ID: 37811833
Perfect solution - thank you!
LVL 38

Expert Comment

by:Tom Beck
ID: 37811872
You're welcome and don't beat yourself up over that. It's easy to confuse the development environment with the live web server. Thanks for the points.

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