JavaScript - Anyone Know What's Wrong With This Javascript Code? (google Maps Api)

Hey Guys,

I am building an application that uses Google Maps V3 and currently using JavaScript to show and hide markers.

I have two check boxes, they have the same location but show if a user has been there or if they are going there.

To hide the markers, I am doing the following function:

Code:

function hideMarker(location) {
    for (var i = 0; i < gmarkers.length; i++) {
        if (gmarkers[i].currentLocation == location) {
            gmarkers[i].setVisible(false);
        }
    }
    infowindow.close();
}

Problem is, because two markers have the same location, it will hide both.

I am passing a been and going value to gmarkers array (gmarkers[i].been etc) so wanted to say something like..

If been is unchecked only hide the been marker.
Else if going is unchecked only hide the going marker.
Else hide both markers.

Anyone have any ideas how I can separate the been and going markers? I can't get my head around the logic

Cheers.

Firstly I know this is a PHP issue yet it is within javascript and IMO is the root cause of the problem.

I'm trying to output markers from a search query of locations from my database, onto a Google Map (api v.3) using a tut I found http://tips4php.net/2010/10/use-php-...g-data-on-map/

When adding this to my page I'm getting Undefined index:errors.

I have changed the variables in the php part of the script to suit my database yet have left everything else alone, cant figure out why I'm still getting a blank map????

Please help....

My code with errors being shown at bottom;

Code:

<script src="http://maps.google.com/maps/api/js?v=3&sensor=false" type="text/javascript"></script>
<script type="text/javascript"> 
 var icon = new google.maps.MarkerImage("http://maps.google.com/mapfiles/ms/micons/blue.png",
 new google.maps.Size(32, 32), new google.maps.Point(0, 0),
 new google.maps.Point(16, 32));
 var center = null;
 var map = null;
 var currentPopup;
 var bounds = new google.maps.LatLngBounds();
 function addMarker(lat, lng, info) {
 var pt = new google.maps.LatLng(lat, lng);
 bounds.extend(pt);
 var marker = new google.maps.Marker({
 position: pt,
 icon: icon,
 map: map
 });
 var popup = new google.maps.InfoWindow({
 content: info,
 maxWidth: 300
 });
 google.maps.event.addListener(marker, "click", function() {
 if (currentPopup != null) {
 currentPopup.close();
 currentPopup = null;
 }
 popup.open(map, marker);
 currentPopup = popup;
 });
 google.maps.event.addListener(popup, "closeclick", function() {
 map.panTo(center);
 currentPopup = null;
 });
 }
 function initMap() {
 map = new google.maps.Map(document.getElementById("map"), {
 center: new google.maps.LatLng(0, 0),
 zoom: 14,
 mapTypeId: google.maps.MapTypeId.ROADMAP,
 mapTypeControl: false,
 mapTypeControlOptions: {
 style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR
 },
 navigationControl: true,
 navigationControlOptions: {
 style: google.maps.NavigationControlStyle.SMALL
 }
 });
 <br />
<b>Notice</b>:  Undefined index:  name in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>73</b><br />
<br />
<b>Notice</b>:  Undefined index:  lng in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>75</b><br />
<br />
<b>Notice</b>:  Undefined index:  info in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>76</b><br />
addMarker(53.994709, ,'<b></b><br/>');
<br />
<b>Notice</b>:  Undefined index:  name in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>73</b><br />
<br />
<b>Notice</b>:  Undefined index:  lng in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>75</b><br />
<br />
<b>Notice</b>:  Undefined index:  info in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>76</b><br />
addMarker(53.985416, ,'<b></b><br/>');
<br />
<b>Notice</b>:  Undefined index:  name in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>73</b><br />
<br />
<b>Notice</b>:  Undefined index:  lng in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>75</b><br />
<br />
<b>Notice</b>:  Undefined index:  info in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>76</b><br />
addMarker(53.985416, ,'<b></b><br/>');
<br />
<b>Notice</b>:  Undefined index:  name in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>73</b><br />
<br />
<b>Notice</b>:  Undefined index:  lng in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>75</b><br />
<br />
<b>Notice</b>:  Undefined index:  info in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>76</b><br />
addMarker(0.000000, ,'<b></b><br/>');
<br />
<b>Notice</b>:  Undefined index:  name in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>73</b><br />
<br />
<b>Notice</b>:  Undefined index:  lng in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>75</b><br />
<br />
<b>Notice</b>:  Undefined index:  info in <b>D:\www\ofcftp\familysupport-results.php</b> on line <b>76</b><br />
addMarker(0.000000, ,'<b></b><br/>');
 center = bounds.getCenter();
 map.fitBounds(bounds);

 }
 </script>

I pulled this code from Google's example section to make markers on a v3 Google Maps API (I have added my own lat/long points and corresponding event listeners, of course, but this is still the spirit of the code): Code:

<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
  var map;
  function initialize() {
    var map_center = new google.maps.LatLng(39.2,-84.479381);
     var store1 = new google.maps.LatLng(39.112456,-84.574779);
    var store2 = new google.maps.LatLng(39.314153,-84.261379);
    var store3 = new google.maps.LatLng(39.197099,-84.667579);
    var store4 = new google.maps.LatLng(39.16836,-84.479381); 
    var myOptions = {
      zoom: 10,
      center: map_center,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

     var marker1 = new google.maps.Marker({
        position: store1, 
        map: map, 
        title:"Store 1"
    });
    var marker2 = new google.maps.Marker({
        position: store2, 
        map: map, 
        title:"Store 2"
    });
    var marker3 = new google.maps.Marker({
        position: store3, 
        map: map, 
        title:"Store 3"
    });
    var marker4 = new google.maps.Marker({
        position: store4, 
        map: map, 
        title:"Store 4"
    }); 
    google.maps.event.addListener(marker1, 'click', function() {
      map.set_center(store1);
      map.set_zoom(16);
    });
    google.maps.event.addListener(marker2, 'click', function() {
      map.set_center(store2);
      map.set_zoom(16);
    });
    google.maps.event.addListener(marker3, 'click', function() {
      map.set_center(store3);
      map.set_zoom(16);
    });
    google.maps.event.addListener(marker4, 'click', function() {
      map.set_center(store4);
      map.set_zoom(16);
    });
  }
</script>

This works without fail, but when I try to use a javascript array to hold my values and loop my way through the marker creation like so: Code:

<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
  var map;
  function initialize() {
    var map_center = new google.maps.LatLng(39.2,-84.479381);
    var store_locations = new Array();
    var temporary_stuff = new Array();
    store_locations[0] = "39.112456,-84.574779";
    store_locations[1] = "39.314153,-84.261379";
    store_locations[2] = "39.197099,-84.667579";
    store_locations[3] = "39.16836,-84.479381";
    var myOptions = {
      zoom: 10,
      center: map_center,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
     for(i=0;i<store_locations.length;i++){
        var marker_string = "position: "+new google.maps.LatLng(store_locations[i])+", map: map, title:\"Store "+(i+1)+"\";";
        temporary_stuff[i] = new google.maps.Marker(marker_string);
    } 
    var markers = new Array();
     for(i=0;i<temporary_stuff.length;i++){
        var the_marker = "position: temporary_stuff[" + i + "], map: map, title:\"Store " + (i+1) + "\";";
        markers[i]= new google.maps.Marker(the_marker);
    } 
  }
</script>

I get a blank map. Here's a link to the test file:
http://rowsdower.freehostia.com/map_test.php

It's not throwing up any errors in Firefox's developer or in IE but there it sits, a blank map.

I'm sure this isn't clean or optimized code, but it looks correct to me. I've color-coded the code above to show what "for" loops are being used to try to replace which code. Hopefully that makes this more sensible.

I haven't even tried to add the listeners yet since I can't get the markers to appear. Can anyone tell me why this isn't working or point me in a more productive direction?

Is there a better way already out there that I haven't noticed?

Hi,

I'm not sure where I have translated this incorrectly. I have one google map embedded on my page which works fine. But I wanted to add a second one. I thought the easiest way to do this would be to have a second page which is called later on with all the details on it for the second map. However although I think (this I presume is where I went wrong) I have replicated the instructions correctly the place holder for the second map just remains blank.

This is the code for my called page with the instructions for the second map:
PHP Code:
<?php
echo $_POST['Map'] . '<br />';
?>

<div id="placemap_canvas"></div>

<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css"> 
    html {height:250px}
    body {height:250px}
    #placemap_canvas {width:100%; height:150px;}
</style>
<script type="text/javascript"
    src="http://maps.google.com/maps/api/js?sensor=true" />
</script>
<script type="text/javascript">
        var latlng = new google.maps.LatLng (
<?php

include("dbconnect.php");

            $result = mysql_query("SELECT * FROM regions
            WHERE RegionPId='{$_POST['Map']}'");

            while($row = mysql_fetch_array($result)){
                echo $row['maplink'];
                }

        mysql_close($con);
?>
);
        var myOptions = {
            zoom: 4,
            center: latlng,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        var map = new google.maps.Map(document.getElementById("placemap_canvas"),
            myOptions);

    }

</script>

And this is the script of the main page, just in case I would be better off keeping them both in one place.
Code:

<head>

<script type="text/javascript">
function loadSubPlace(File,ID,Msg,Eile,EID,Esg){
loadXMLDoc1(File,ID,Msg);
	 var mimer = setTimeout(function(){loadXMLDoc1(Eile,EID,Esg)},5000);
}
</script>

<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css"> 
	html {height:250px}
	body {height:250px}
	#map_canvas {width:30%; height:250px;}
</style>

<script type="text/javascript"
	src="http://maps.google.com/maps/api/js?sensor=true" />
</script>
<script type="text/javascript">
function initialize() {

		var latlng = new google.maps.LatLng (
<?php

include("dbconnect.php");

			$result = mysql_query("SELECT * FROM countries 
			WHERE Country='{$_SESSION['Country']}'");

			while($row = mysql_fetch_array($result)){
				echo $row['Map'];
				}

		mysql_close($con);
?>);
		var myOptions = {
			zoom: 4,
			center: latlng,
			mapTypeId: google.maps.MapTypeId.ROADMAP
		};
		var map = new google.maps.Map(document.getElementById("map_canvas"),
			myOptions);
	}

</script>
</head>
<body onload="initialize()">

		<div class="countryright" id="map_canvas">

include("dbconnect.php");

$snowball=explode(';',$_POST['syringa']);
$turnsol=$snowball[1];
$violet =$snowball[2];
$wakerobin=$snowball[3];

global $turnsol;
global $violet;
global $wakerobin;

	echo '<center><b><big>' . $wakerobin. '</big></b></center><br /><br />';

	$result=mysql_query("SELECT * FROM regions
	WHERE country='{$turnsol}' AND region='{$violet}' AND place='{$wakerobin}' AND sub !=''
	ORDER BY sub ASC");

			while($row = mysql_fetch_array($result)){
				$wheat="{$row['RegionPId']};{$turnsol};{$violet};{$wakerobin};{$row['sub']}";
				$tigerlilly=$row['RegionPId'];
				echo '<input type="button" class="button3" name="place" id="place" value="' . $row['sub'] . '" onclick="loadSubPlace(\'getPlace.php\',\'txtHintPlaceSub\',\'hepatica=' . urlencode($wheat) . '\',\'getPlaceMap.php\',\'placemapcanvas\',\'Map=' . urlencode($tigerlilly) . '\');" />';
				}
		echo '<input type="button" class="button3" name="addplace" id="addplace" value="Add Place" onclick="loadXMLDoc1(\'getAddPlaceSub.php\',\'txtHintPlaceSub\', encodeURI(\'addsubplace=' . $_POST['syringa'] . '\'));" />';

echo '<br /><br /><div id="txtHintPlaceSub"></div><br /><br />';

mysql_close($con);

?>

I've cut out the script that doesn't relate to this so I hope I haven't missed anything important.

I am trying to validate the form on my site using an external js file.

Here is the HTML for my form:

<form method="post" form action="sendmail.asp">
<p><label for="emailAddr">Email Address:
<input id="emailAddr" name="emailAddr" type="text" size="30" class="reqd email" />
</label></p>
<p><span id="spryselect1">
<label for="Players">Players:
<select id="player" class="reqd" name="player">
<option value="" selected="selected">Choose a Player</option>
<option value="Woodson">Charles Woodson</option>
<option value="Rodgers">Aaron Rodgers</option>
<option value="Driver">Donald Driver</option>
<option value="Hawk">A.J. Hawk</option>
<option value="Barnett">Nick Barnett</option>
<option value="Bigby">Atari Bigby</option>
</select>
</label>
<span class="selectRequiredMsg">Please select an item.</span></span></p>
<p><label for"options">
Size(default is X-Large):
<label for="medium"><input type="checkbox" name="options" id="medium" value="Medium" />
X-Large</label>
<label for="large"><input type="checkbox" name="options" id="large" value="Large" />
Large</label>

</p>
<p>
<label for="setStyle">Jersy Style:&nbsp;&nbsp;
<input type="radio" id="homeStyle" name="setStyle" value="homeStyle" class="radio" />
Home
<input type="radio" id="awayStyle" name="setStyle" value="awayStyle" class="radio" />
Away
</label></p>
<p>
<label for="zip">
Zip: <input id="zip" name="zip" type="text" size="10" maxlength="5" class="isZip dealerList" />
</label></p>
<p><input type="submit" value="Submit" />&nbsp;<input type="reset" /></p>
<p>&nbsp;</p>
<p>&nbsp;</p>
</form>

Here is the JavaScript file attached:


window.onload = initForms;

function initForms() {
for (var i=0; i< document.forms.length; i++) {
document.forms[i].onsubmit = function() {return validForm();}
}
document.getElementById("medium").onclick = sizeSet;
}

function validForm() {
var allGood = true;
var allTags = document.getElementsByTagName("*");

for (var i=0; i<allTags.length; i++) {
if (!validTag(allTags[i])) {
allGood = false;
}
}
return allGood;

function validTag(thisTag) {
var outClass = "";
var allClasses = thisTag.className.split(" ");

for (var j=0; j<allClasses.length; j++) {
outClass += validBasedOnClass(allClasses[j]) + " ";
}

thisTag.className = outClass;

if (outClass.indexOf("invalid") > -1) {
invalidLabel(thisTag.parentNode);
thisTag.focus();
if (thisTag.nodeName == "INPUT") {
thisTag.select();
}
return false;
}
return true;

function validBasedOnClass(thisClass) {
var classBack = "";

switch(thisClass) {
case "":
case "invalid":
break;
case "reqd":
if (allGood && thisTag.value == "") {
classBack = "invalid ";
}
classBack += thisClass;
break;
case "radio":
if (allGood && !radioPicked(thisTag.name)) {
classBack = "invalid ";
}
classBack += thisClass;
break;
case "isNum":
if (allGood && !isNum(thisTag.value)) {
classBack = "invalid ";
}
classBack += thisClass;
break;
case "isZip":
if (allGood && !isZip(thisTag.value)) {
classBack = "invalid ";
}
classBack += thisClass;
break;
case "email":
if (allGood && !validEmail(thisTag.value)) {
classBack = "invalid ";
}
classBack += thisClass;
break;
default:
if (allGood && !crossCheck(thisTag,thisClass)) {
classBack = "invalid ";
}
classBack += thisClass;
}
return classBack;
}

function crossCheck(inTag,otherFieldID) {
if (!document.getElementById(otherFieldID)) {
return false;
}
return (inTag.value != "" || document.getElementById(otherFieldID).value != "");
}

function radioPicked(radioName) {
var radioSet = "";

for (var k=0; k<document.forms.length; k++) {
if (!radioSet) {
radioSet = document.forms[k][radioName];
}
}
if (!radioSet) {
return false;
}
for (k=0; k<radioSet.length; k++) {
if (radioSet[k].checked) {
return true;
}
}
return false;
}

function isNum(passedVal) {
if (passedVal == "") {
return false;
}
for (var k=0; k<passedVal.length; k++) {
if (passedVal.charAt(k) < "0") {
return false;
}
if (passedVal.charAt(k) > "9") {
return false;
}
}
return true;
}

function isZip(inZip) {
if (inZip == "") {
return true;
}
return (isNum(inZip));
}

function validEmail(email) {
var invalidChars = " /:,;";

if (email == "") {
return false;
}
for (var k=0; k<invalidChars.length; k++) {
var badChar = invalidChars.charAt(k);
if (email.indexOf(badChar) > -1) {
return false;
}
}
var atPos = email.indexOf("@",1);
if (atPos == -1) {
return false;
}
if (email.indexOf("@",atPos+1) != -1) {
return false;
}
var periodPos = email.indexOf(".",atPos);
if (periodPos == -1) {
return false;
}
if (periodPos+3 > email.length) {
return false;
}
return true;
}

function invalidLabel(parentTag) {
if (parentTag.nodeName == "LABEL") {
parentTag.className += " invalid";
}
}
}
}

function sizeSet() {
if (this.checked) {
document.getElementById("homeStyle").checked = true;
}
}


Thank you very much in advance for any and all help. I am a noob with JavaScript. I didn't know where else to turn for help. Thanks in advance, guys.

The URL of the page I'm working on can be found he http://graph-art.matc.edu/romanot/vi...inal/order.php

Ok, the code below works ok in Firefox but not in IE and I can't figure out why. Please note that when I include the movie src in the body tag, the way it is in the code below, the movie loads fine but the window does not resize as it should (see the document.getElementByID).

When I take the movie src out of the body tag however, it doesn't load. It's supposed to load just from the javascript meaning the src shouldn't need to be in the body for this to work.

Can anyone see what the problem is?

Code:

<html>
	<head>
    <style type="text/css">
<!--
.fontStyle {
	font-family: Verdana, Geneva, sans-serif;
	font-size: small;
	font-weight: bold;
	color: #67A2DC;
}

-->
    </style>
		<script type="text/javascript">			

			/*window.onload=function(){
				loadVideo();
			}
		/*	
			function wait() {
				//loadVideo();
				setTimeOut("loadVideo()", 2000);
				}
		*/
			function loadVideo()
			{
				<!--
					if (parseInt(navigator.appVersion)>3)
						{
							if (navigator.appName == "Netscape")
							{
								winW = window.innerWidth;
								winH = window.innerHeight;
							}
					if (navigator.appName.indexOf("Microsoft") != -1)
							{
								winW = document.body.offsetWidth;
								winH = document.body.offsetHeight;
							}
			}
				
				var dimW = winW-50;
				var dimH = winH-20;
				var w1 = dimW.toString();
				var h1 = dimH.toString();
				
				if(document.getElementById("vidEmbed") != null)
				{
					
					document.getElementById("vidEmbed").src = "oracleWelcome_1.wmv";
					document.getElementById("vidEmbed").style.width = w1;
					document.getElementById("vidEmbed").style.height = h1;
				}
				else if(document.getElementById("Player") != null)
				{
					document.getElementById("Player").style.width = w1;
					document.getElementById("Player").style.height = h1;
					document.getElementById("objectSrc").value = "oracleWelcome_1.wmv";
				}


			}
		</script>

	</head>
<body><div>
<p><span class="fontStyle">Introduction<br>

</span>
  <object id="Player" width="100%" height="100%" classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" style="border:0px;"> 
    
    <param name="autoStart" value="True">
    <param name="uiMode" value="full">
    <param name="volume" value="50">
    <param name="mute" value="false">
    <param name="URL" id="objectSrc" value="">
    <embed src="" id="vidEmbed" width="100%" height="100%" autostart="true" uimode="full" volume="50" mute="false"> </embed>
  </object>
</p><body onload="loadVideo();"></body>
</div>
</body>
</html>

Hi

I have just started looking at the Google maps, and have atutorial that will get the co-ordinates. What I want this to do, is then populate two fields on a form one called longitude and one called latitude

Code:

function usePointFromPostcode(postcode, callbackFunction) {
  
  localSearch.setSearchCompleteCallback(null, 
    function() {
      
      if (localSearch.results[0]) {    
        var resultLat = localSearch.results[0].lat;
        var resultLng = localSearch.results[0].lng;
        var point = new GLatLng(resultLat,resultLng);
        callbackFunction(point);
      }else{
        alert("Postcode not found!");
      }
    });  
    
  localSearch.execute(postcode + ", UK");
}

Any ideas/tips would be be much appreciated

I have some problems with intergrating google maps into my page

I cant seem to get a marker to appear on my map. I have tried numerous methods but non seem to work.

I have integrated the google maps on my main site, repositioned and re-sized.

The code below is a test page i work on to get code to work. It's just a map on a page

entire code:
<!DOCTYPE HTML>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 25px; padding: 25px }
#map_canvas { height: 100% }
</style>
<script type="text/javascript"
src="http://maps.googleapis.com/maps/api/js?key=AIzaSyDrxZnpYBNIwzBFVYaDY__BMONEjNEGZaI&sensor=false">
</script>
<script type="text/javascript">
function initialize() {
var myLatlng = new google.maps.LatLng(-25.363882,131.044922);
var myOptions = {
zoom: 4,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);}
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title:"Hello World!"
});

</script>
</head>

<body onload="initialize()">
<div id="map_canvas" style="width:100%; height:100%"></div>
</body>
</html>

can anybody tell my where i am going wrong and just the map appears with no marker?


thanks

I am using jMapping(http://vigetlabs.github.com/jmapping/) for using jQuery with google maps. What I'm trying to do is add an event listener so that when you click on a marker it will call a function I made within the jMapping function. Does anyone have any clues? everything I've tried doesn't work.

Hey all

I'm quite a newbie at javascript and I'm trying to have links to google maps markers.
I have a page with my embeded google maps on it and some markers.

What I'm basically looking to do is have a web page with a menu down the side and when you click the menu items, the google maps markers would pop up on the map.

For example, city attractions down a side menu and when you click say restaurants, the markers would pop up the location restaurants in a certain place, then you could click pubs and the restaurant markers would dissapear and the pub markers would appear.

Can anyboy help me with this or even direct me to some code that would help.

Thanks all.

I'm completely at a loss how to embed a map with the new google maps api setup. I found a snippet of code that I dropped in with some small database variables pulled in and was done. Then an error came that the API was no good. So I went in and set up an anaccount, got an api and now I just simply have no clue what their instructions are saying I need to do. Gah!

Here's what I originally had:
I now have a Client ID, client secret and stuff. But no clue how to set up this url, etc.
Code:

</script> 
<script src="//maps.google.com/maps?file=api&amp;v=2&amp;key=AIzaSyD4iE2xVSpkLLOXoyqT-RuPwURN3ddScAI"
            type="text/javascript"></script>
            
<script type="text/javascript">
    
    function initialize() {
      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("map_canvas"));
        map.setCenter(new GLatLng(<?php echo $c_row['location_longitude']; ?>,<?php echo $c_row['location_latitude']; ?>), 13);
 // Add the latitude/longitude marker to the map
	var point = new GLatLng(<?php echo $c_row['location_longitude']; ?>,<?php echo $c_row['location_latitude']; ?>);
	map.addOverlay(new GMarker(point));
	map.setUIToDefault();
      }
    }

    </script>

<b>Map:<br><br><div id="map_canvas" style="width: 500px; height: 300px; z-index:4000;border-width:medium;border-color:#030;"></div></b>

Hey

I'm quite new at javascript and am currently in the process of creating a site that embeds google maps using an xml document.

What I'm trying to do is categories the markers on my map.

I am trying to make it so there are check boxes at the bottom and when i check the boxes, i.e. theatres, the markers will appear for the theatres and disappear when unchecked.

Using some example code i have modified, i have so far got the maps to pickup the markers from the xml with the check boxes but the markers are all just on the page and the check boxes dont do anything and I am stuck as to of why.

here's my code:

Code:

<!DOCTYPE HTML>
<html>
  <head>
    <title>Google Maps</title>
    <script src="mykey"></script>
  </head>
 <body style="margin:0px; padding:0px;" onload="initialize()"> 
  
    <table border=1>
      <tr>
        <td>
           <div id="map" style="width: 550px; height: 450px"></div>
        </td>
        <td valign="top" style="width:150px; text-decoration: underline; color: #4444ff;"> 
           <div id="side_bar"></div>

        </td>
      </tr>
    </table>
    <form action="#">
      Theatres: <input type="checkbox" id="theatrebox" onclick="boxclick(this,'theatre')" /> &nbsp;&nbsp;
      Golf Courses: <input type="checkbox" id="golfbox" onclick="boxclick(this,'golf')" /> &nbsp;&nbsp;
      Tourist Information: <input type="checkbox" id="infobox" onclick="boxclick(this,'info')" /><br />

    </form>  

<script type="text/javascript">
_uacct = "UA-162157-1";
urchinTracker();
</script>
  </body>


    <script type="text/javascript">
    //<![CDATA[

    if (GBrowserIsCompatible()) {

      var side_bar_html = "";
    
     
      var gmarkers = [];
	  var map = null;

      
      function createMarker(point,name,html,category) {
        var marker = new GMarker(point);
        GEvent.addListener(marker, "click", function() {
          marker.openInfoWindowHtml(html);
        });
      
		marker.mycategory = category;                                 
        marker.myname = name;
        gmarkers.push(marker);
        
        side_bar_html += '<a href="javascript<b></b>:myclick(' + (gmarkers.length-1) + ')">' + name + '<\/a><br>';
        return marker;
      }

     
 function show(category) {
        for (var i=0; i<gmarkers.length; i++) {
          if (gmarkers[i].mycategory == category) {
            gmarkers[i].setVisible(true);
          }
        }
     
        document.getElementById(category+"box").checked = true;
      }

   ensures the checkbox is cleared ==
      function hide(category) {
        for (var i=0; i<gmarkers.length; i++) {
          if (gmarkers[i].mycategory == category) {
            gmarkers[i].setVisible(false);
          }
        }
    
        document.getElementById(category+"box").checked = false;
    that we just hid
        infowindow.close();
      }


      function boxclick(box,category) {
        if (box.checked) {
          show(category);
        } else {
          hide(category);
        }
    
        makeSidebar();
      }

      function myclick(i) {
        google.maps.event.trigger(gmarkers[i],"click");
      }

     
      var map = new GMap2(document.getElementById("map"));
      map.addControl(new GLargeMapControl());
      map.addControl(new GMapTypeControl());
      map.setCenter(new GLatLng( 53.8363,-3.03771), 11);
	  
      GDownloadUrl("categories.xml", function(doc) {
        var xmlDoc = GXml.parse(doc);
        var markers = xmlDoc.documentElement.getElementsByTagName("marker");
          
        for (var i = 0; i < markers.length; i++) {
          // obtain the attribues of each marker
          var lat = parseFloat(markers[i].getAttribute("lat"));
          var lng = parseFloat(markers[i].getAttribute("lng"));
          var point = new google.maps.LatLng(lat,lng);
          var address = markers[i].getAttribute("address");
          var name = markers[i].getAttribute("name");
          var html = "<b>"+name+"<\/b><p>"+address;
          var category = markers[i].getAttribute("category");
          // create the marker
          var marker = createMarker(point,name,html,category);
          map.addOverlay(marker);
        }

        document.getElementById("side_bar").innerHTML = side_bar_html;
	
        show("theatre");
        hide("golf");
        hide("info");
      });
    }

    else {
      alert("Sorry, the Google Maps API is not compatible with this browser");
    }


    </script>
  </body>

</html>

If anybody help with this and tell me where I am going wrong, it would be much appreciated.


thanks

We got a google maps with a bunch of pins. Each pin is setup to use our blue custom icon image.

I'm trying to make it so that when you click on a pin, that particular pin changes to a green version of the icon, and all the reset stay blue. If the user clicks another pin, it turns green and the previous goes back to blue.

Basicly only the clicked active pin should be green.

Code:

google.maps.event.addListener(markers[indx], 'click', function() {
    this.setIcon("/images/greenmarker.png");
});

Here is my code so far that will change the clicked pin into a green version.

My problem is all attempts to change all pins back to blue prior to changing this clicked pin to green fails bad.

Anyone know how to do this or point me in the right direction?

Hello

i have a problem i need to resolve here is the script
Code:

script src="http://maps.google.com/maps?file=api&amp;v=2.x&amp;key=ABQIAAAAzr2EBOXUKnm_jVnk0OJI7xSosDVG8KKPE1-m51RBrvYughuyMxQ-i1QfUnH94QxWIa6N4U6MouMmBA" type="text/javascript"></script> 
    <script type="text/javascript"> 
 
    var map = null;
    var geocoder = null;
 
    function initialize() {
      if (GBrowserIsCompatible()) {
        map = new GMap2(document.getElementById("map_canvas"));
        map.setCenter(new GLatLng(37.4419, -122.1419), 13);
        geocoder = new GClientGeocoder();
      }
    }
 
    function showAddress(address) {
      if (geocoder) {
        geocoder.getLatLng(
          address,
          function(point) {
            if (!point) {
              alert(address + " not found");
            } else {
              map.setCenter(point, 13);
              var marker = new GMarker(point);
              map.addOverlay(marker);
              marker.openInfoWindowHtml(address);
            }
          }
        );
      }
    }
    </script> 
  </head> 
 
  <body onload="initialize()" onunload="GUnload()"> 
    <form action="#" onsubmit="showAddress(this.address.value); return false"> 
      <p> 
        <input type="text" size="60" name="address" value="1600 Amphitheatre Pky, Mountain View, CA" /> 
        <input type="submit" value="Go!" /> 
      </p> 
      <div id="map_canvas" style="width: 500px; height: 300px"></div> 
    </form> 
  </body>

its all working well but i need to use it differently.

Is there a way to make the form submit automatically , i already have the address and i will <php> it from my database.

i want that the map will show in the page as soon as the user clicked on an ad(real estate ad).

Basically what we need here is:
To know how to call the functions and give the address from the database.

<body onload="initialize()" onunload="GUnload()">
<form action="#" onsubmit="showAddress(this.address.value); return false">
<p>
<input type="text" size="60" name="address" value="1600 Amphitheatre Pky, Mountain View, CA" />
<input type="submit" value="Go!" />
</p>
<div id="map_canvas" style="width: 500px; height: 300px"></div>
</form>
</body>

Is there a way just to use this command without the form onsubmit="showAddress(this.address.value); return false">?

And give the address as a variable ?

and when the page is uploading it will have already passed the address and the map will show

Danny