var markers = [];
var to_htmls = [];
var from_htmls = [];
var i = 0;

function createMarker(lat, lon, infoMessage, locationName) {
    var marker = new GMarker(new GLatLng(lat, lon));
    var direction_html = '<span class="directions"><br /><b>Get directions:</b> <a href="javascript:tohere('+ 
	i +')">To here</a> - <a href="javascript:fromhere(' + i +
	')">From here</a></span>';
    var pre_message = "<div class=\"gmapinfo\">";
    var post_message = "</div>";
    var full_message = pre_message + infoMessage + 
	direction_html + post_message;

    // The info window version with the "to here" form open
    to_htmls[i] = pre_message + infoMessage +  
	'<span class="directions"><br /><b>Get directions:</b> To here - <a href="javascript:fromhere(' + 
	i + 
	')">From here</a>' +
	'<br />Start address:<form action="http://maps.google.com/maps" method="get">' +
	'<input type="text" size="30" maxlength="80" name="saddr" id="saddr" value="" />' +
	'&nbsp;' +
	'<input value="Go" type="submit">' +
	'<input type="hidden" name="daddr" value="' + 
	lat + 
	',' + 
	lon + 
	'(' + locationName + ')' +
	'"/></span>' +
	post_message;

    // The info window version with the "from here" form open
    from_htmls[i] = pre_message + infoMessage  + 
	'<span class="directions"><br /><b>Get directions:</b> <a href="javascript:tohere(' + 
	i + 
	')">To here</a> - From here' +
	'<br />End address:<form action="http://maps.google.com/maps" method="get">' +
	'<input type="text" size="30" maxlength="80" name="daddr" id="daddr" value="" />' +
	'&nbsp;' +
	'<input value="Go" type="submit">' +
	'<input type="hidden" name="saddr" value="' + 
	lat + ',' + lon +
	'(' + locationName + ')' +
	'"/></span>' +
	post_message;

    GEvent.addListener(marker, "click", function() {
      marker.openInfoWindowHtml(full_message);
    });

    i++;
    return marker;
}

// functions that open the directions forms
function tohere(i) {
    markers[i].openInfoWindowHtml(to_htmls[i]);
}
function fromhere(i) {
    markers[i].openInfoWindowHtml(from_htmls[i]);
}

function PSMapInit(m) {
    m.addControl(new GSmallMapControl());
    m.addControl(new GMapTypeControl());
    var mgr = new GMarkerManager(m);

    markers.push(createMarker(37.982634, -122.529831, "<b>Shintaido Open-hand</b><br />Sundays, 8:00AM<br /><a href=\"classes.php3?teacherid=1&classid=1\">details...</a><br />", "Old Gym at Marin Academy"));
    markers.push(createMarker(37.743040, -122.415139, "<b>Shintaido Bojutsu for Women</b><br />Mondays, 7:30 AM<br /><a href=\"classes.php3?teacherid=4&classid=14\">details...</a><br />", "2565 3rd Street #309 (and 22nd St), San Francisco, CA 94107- near downtown and the Mission"));
    markers.push(createMarker(37.734902, -122.439900, "<b>Shintaido Bojutsu</b><br />Wednesdays, 10:00AM<br /><a href=\"classes.php3?teacherid=8&classid=20\">details...</a><br />", "Glen Park Field on the corner of Elk and Bosworth"));
    markers.push(createMarker(37.758072, -122.428125, "<b>Shintaido Open-hand & Karate</b><br />Wednesdays, 6:00PM<br /><a href=\"classes.php3?teacherid=9&classid=21\">details...</a><br />", "Dolores Park by playground"));
    markers.push(createMarker(37.848193, -122.233753, "<b>Shintaido Bojutsu</b><br />Thursdays, 9:30AM<br /><a href=\"classes.php3?teacherid=11&classid=17\">details...</a><br /><br /><b>Shintaido Kenjutsu</b><br />Saturdays, 7:30AM<br /><a href=\"classes.php3?teacherid=6&classid=8\">details...</a><br />", "Lake Temescal Park"));
    mgr.addMarkers(markers, 3);
    mgr.refresh();
}