// baloon
var html="<div id='balloon'><strong>GISA Secretariat</strong><address>Gakkai Center Bld.<br />4-267, Yayoi 2-chome, Bunkyo-ku, Tokyo 113-0032, Japan<br />[Tel/Fax] +(81)-3-5689-7955</address></div>";

// map
var map = new GMap2(document.getElementById("map"));

// zoom
map.addControl(new GLargeMapControl());

// change
map.addControl( new GMapTypeControl() );

// target
var target=new GLatLng(35.715456, 139.763077);

// center
var cntr=new GLatLng(35.715456, 139.763077);

// default
map.setCenter(cntr,16);

// open
var	marker=createMarker(target,html);
map.addOverlay(marker);

function createMarker(point, number) {
  var marker = new GMarker(point);
  // Show this marker's index in the info window when it is clicked.
  var html = number;
  GEvent.addListener(marker, 'click', function() {
	markerClick=1;
	marker.openInfoWindowHtml(html);
  });
  return marker;
}

//program
$(function(){
	map.clearOverlays();
    
    //point
	var	marker=createMarker(target,html);
	map.addOverlay(marker);
    
    //window
    marker.openInfoWindowHtml(html);
});