Bonjour,
comment donner une couleur et une épaisseur choisie à la trace kml chargée ?

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" 
      xmlns:v="urn:schemas-microsoft-com:vml">
  <head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
    <title>Google Maps API Example: GGeoXml KML Overlay</title>
    <script src="http://maps.google.com/maps?file=api&amp;v=2&amp;key=ABQIAAAAkqjHZxpryExFUOvCjj6FYhTuBaFGMcRjuusR5r3znJHCnEo7DBSQH9T4VbaTdir0EThgUPQ1TpN3Og"
      type="text/javascript"></script>
    <script type="text/javascript"> 
 
    var map;
    var geoXml:
 
    var toggleState = 1;
 
    function initialize() {
      if (GBrowserIsCompatible()) {
        geoXml = new GGeoXml("trace.kml");
        map = new GMap2(document.getElementById("map_canvas")); 
        map.setCenter(new GLatLng(44.1738,5.2836), 11); 
        map.setUIToDefault();
        map.addOverlay(geoXml);
      }
    } 
 
    function toggleMyKml() {
      if (toggleState == 1) {
        map.removeOverlay(geoXml);
        toggleState = 0;
      } else {
        map.addOverlay(geoXml);
        toggleState = 1;
      }
    }
	</script>
  </head>
 
  <body onload="initialize()">
    <div id="map_canvas" style="width: 640px; height: 480px; float:left; border: 1px solid black;"></div>
    </div>
    <br clear="all"/>
    <br/>
    <input type="button" value="Toggle KML" onClick="toggleMyKml();"/>
  </body>
</html>