getElementsByTagName scope

[roel.wessels]

Hello,

I'm working with Google Maps API and I have trouble understanding this
problem which is Javascript related. I've read some posts related to
this, but I can't seem to use it correctly.

Below is the is a sample of the XML file I use with GDownloadUrl() to
get the markers and relevant information for the tabbed infowindows.

Any help is highly appreciated!

<root>
<airport id="1925">
<name>AMSTERDAM SCHIPHOL</name>
<lat>52.308056</lat>
<lon>4.764167</lon>
<country>Netherlands</country>
<runways>
<runway ident="04">
<length>6608</length>
<surface>ASP</surface>
</runway>
<runway ident="06">
<length>11483</length>
<surface>ASP</surface>
</runway>
</runways>
</airport>
<airport id="1927">
<name>MAASTRICHT</name>
<lat>50.915833</lat>
<lon>5.776944</lon>
<country>Netherlands</country>
<runways>
<runway ident="03">
<length>9027</length>
<surface>ASP</surface>
</runway>
<runway ident="21">
<length>9027</length>
<surface>ASP</surface>
</runway>
</runways>
</airport>

To parse this data I use the following script:

GDownloadUrl("http://airportv2.ceeya.net/final/test_eh2.xml",
function(data) {
var xml = GXml.parse(data);
var markers =
xml.documentElement.getElementsByTagName("airport");
for (var i = 0; i < markers.length; i++) {
marker = markers;
airport_name = GXml.value(marker.getElementsByTagName("name")[0]);
airport_lat = parseFloat(GXml.value(marker.getElementsByTagName("lat")
[0]));
airport_lon = parseFloat(GXml.value(marker.getElementsByTagName("lon")
[0]));

var runway_html = airport_name;

var runway = marker.getElementsByTagName("runway");

var runway_html =
GXml.value(runway.getElementsByTagName("length")[0]);
}

The airport data elements are shown fine. The problem is getting to
display the runway data.
Are the runway elements not stored by
xml.documentElement.getElementsByTagName("airport")?

If not, what would be a possible solution.

Thanks in advance,

Roel Wessels

 

[Thomas 'PointedEars' Lahn]

I'm working with Google Maps API and I have trouble understanding this
problem which is Javascript related.

Only remotely. Use http://groups.google.com/group/Google-Maps-API instead.


PointedEars

 

[Thomas 'PointedEars' Lahn]

GDownloadUrl("http://airportv2.ceeya.net/final/test_eh2.xml",
function(data) {
var xml = GXml.parse(data);
[...]
}

[...]
Are the runway elements not stored by
xml.documentElement.getElementsByTagName("airport")?
http://www.google.com/apis/maps/documentation/reference.html#GXml

If not, what would be a possible solution.

Bugfix GXml.parse(), or write an XML parser and overwrite GXml.parse().


HTH

PointedEars