including a file stops function from runing?? why

<script type="text/javascript">
<!--//--><![CDATA[//><!--
startList = function() {
    if (document.all&&document.getElementById) {
        navRoot = document.getElementById("nav");
        for (i=0; i<navRoot.childNodes.length; i++) {
            node = navRoot.childNodes[i];
            if (node.nodeName=="LI") {
                node.onmouseover=function() {
                    this.className+=" over";
                }
                node.onmouseout=function() {
                    this.className=this.className.replace(" over", "");
                }
            }
        }
    }
}
window.onload=startList;
//--><!]]>
</script>

<script src="http://maps.google.com/maps?file=api&amp;v=2&amp;key=ABQIAAAAsiQvuugI6Ni06Zq-4qcw8xRDySWSj47LhKkbc2n0qzQPgi3L7hS02DtDqb_nguwz4fdmwsrHj5E1vw"type="text/javascript"></script>
<script type="text/javascript">
function load() {
    if (GBrowserIsCompatible()) {
       var map = new GMap2(document.getElementById("map"));
       map.addControl(new GSmallMapControl());
       map.addControl(new GMapTypeControl());
       map.setCenter(new GLatLng(53.396432, -7.470703), 5);      
       GEvent.addListener(map, "click", function(overlay, point){
         map.clearOverlays();
         if (point) {
             map.addOverlay(new GMarker(point));
             map.panTo(point);
             document.form1.mylat.value = point.lat();
             document.form1.mylng.value = point.lng();
    
         }  //close if(point)...
       });   //close GEvent...
    }  //close if(GBrowser...
} //close load()
</script>