function insertMap () 
{
	//Insert the google map into the page
    var map = new GMap(document.getElementById("map"));
    map.addControl(new GSmallMapControl());
    map.addControl(new GMapTypeControl());
    //centre and zoom at slightly different point to marker - to show all three stations
    //threadneedle street:
    //map.centerAndZoom(new GPoint(-0.08372258529663086, 51.514970853021906), 2);
    //st mary's axe:
    map.centerAndZoom(new GPoint(-0.079319, 51.515464), 2);
    
    //Add the marker to the map very near the centre...
    //threadneedle street:
    //var point = new GPoint(-0.08512258529663086, 51.514070853021906);
    //st mary's axe:
    var point = new GPoint(-0.079319, 51.515464);
    var marker = new GMarker(point);
    map.addOverlay(marker);
}