function drawMap ()
{
    var map = new YMap (document.getElementById("idMap"));
    var center = new YGeoPoint(9.933333, -84.083333);

    var sjMark = new YMarker (new YGeoPoint(9.933333, -84.083333));
    sjMark.addAutoExpand ("<a href='http://www.evanchu.com/travelCostaRica'>San Jose</a>");
    sjMark.addLabel ("1");
    map.addOverlay (sjMark);
    
    var monteMark = new YMarker (new YGeoPoint(10.315933, -84.822521));
    monteMark.addAutoExpand ("<a href='http://www.evanchu.com/travelCostaRica/slideMonteverde'>Monteverde</a>");
    monteMark.addLabel ("2");
    map.addOverlay (monteMark);
    
    var arenalMark = new YMarker (new YGeoPoint(10.463333, -84.703333));
    arenalMark.addAutoExpand ("<a href='http://www.evanchu.com/travelCostaRica/slideArenal'>Arenal Volcano</a>");
    arenalMark.addLabel ("3");
    map.addOverlay (arenalMark);
    
    var tortuMark = new YMarker (new YGeoPoint(10.541111, -83.502222));
    tortuMark.addAutoExpand ("<a href='http://www.evanchu.com/travelCostaRica/slideTortuguero'>Tortuguero Park</a>");
    tortuMark.addLabel ("4");
    map.addOverlay (tortuMark);
    
    var zoomLevel = 10;
    map.drawZoomAndCenter (center, zoomLevel);
    map.addTypeControl ();
    map.addZoomLong ();
    map.setMapType (YAHOO_MAP_REG);
}