google map two markers on one map - php

Question

Hey. I'mm trying to put two points on a single map with same div id..
but it doesn't work..
code:
for 1st,
var map = new GMap2(document.getElementById("map-canvas"));
map.addControl(new GLargeMapControl());
map.addControl(new GMapTypeControl());
map.setCenter(new GLatLng(<?=$lat;?>,<?=$lng;?>), 6);
var point = new GLatLng(<?=$lat;?>,<?=$lng;?>);
var marker = createMarker(point,'Welcome:<b></b><br>Second Info Window with an image<br><img src="http://localhost/gps/user_photo/" width=80 height=80>')
map.addOverlay(marker);
function createMarker(point,html) {
var marker = new GMarker(point);
GEvent.addListener(marker, "click", function() {
marker.openInfoWindowHtml(html);
});
return marker;
}
for 2nd,
var map = new GMap2(document.getElementById("map-canvas"));
map.addControl(new GLargeMapControl());
map.addControl(new GMapTypeControl());
map.setCenter(new GLatLng(<?=$mylat;?>,<?=$mylng;?>), 6);
var point1 = new GLatLng(<?=$mylat;?>,<?=$mylng;?>);
var marker = createMarker1(point1,'Welcome:<b></b><br>Second Info Window with an image<br><img src="http://localhost/gps/user_photo/" width=80 height=80>')
map.addOverlay(marker);
function createMarker1(point,html) {
var marker = new GMarker(point);
GEvent.addListener(marker, "click", function() {
marker.openInfoWindowHtml(html);
});
return marker;
}
why two points not shown in one map?????
and it will seen in two different maps...

Answer 1

//set up map as before
var point0 = new GLatLng(<?=$mylat0;?>,<?=$mylng0;?>);
var point1 = new GLatLng(<?=$mylat1;?>,<?=$mylng1;?>);
var marker0 = createMarker(point0,'Welcome:<b></b><br>First Info Window etc);
var marker1 = createMarker(point1,'Welcome:<b></b><br>Second Info Window etc);
map.addOverlay(marker);
// only declare this once
function createMarker(point,html) {
var marker = new GMarker(point);
GEvent.addListener(marker, "click", function() {
marker.openInfoWindowHtml(html);
});
return marker;
}
This is one way of doing it just to get it working for you, but essentially the js points and markers should be arrays which you loop through - ditto probably the $mylat and $mylong vars in PHP.

Answer 2

As i understood - you want to add two points on one map, on the one page.
If so - you don't need to initialize Gmap twice, just do something like this:
http://pastebin.com/BtvdfaiP