function LoadMap() {
  if (GBrowserIsCompatible()) {
    var map = new GMap2(document.getElementById('GMap'));
    map.addControl(new GSmallMapControl());
    map.setCenter(new GLatLng(35.828437 , 139.529479 ), 13);
    var point = new GLatLng(35.828437 , 139.529479 );
    var marker = new GMarker(point);
    map.addOverlay(marker);
  }
}
window.onload = function() {
	LoadMap();
	MM_preloadImages('http://'+location.host+'/common/img/b1_on.gif','http://'+location.host+'/common/img/b2_on.gif','http://'+location.host+'/common/img/b3_on.gif','http://'+location.host+'/common/img/b4_on.gif','http://'+location.host+'/common/img/b5_on.gif');
	BrChk();
}
window.onunload = function() {
	GUnload();
}