function observe(target, type, listener) {
   	if (target.addEventListener) target.addEventListener(type, listener, false);
   	else target.attachEvent('on' + type, function() { listener.call(target, window.event); });
}

var mapInit = function (){ 
	 
      if (GBrowserIsCompatible()) {
         var map = new GMap2(document.getElementById("GoogleMap"));
         map.setCenter(new GLatLng(35.86672586187277, 140.02721071243286), 14);
         map.addControl(new GSmallMapControl());

         var marker = new GMarker(new GLatLng(35.86672586187277, 140.02721071243286));
         GEvent.addListener(marker, "click", function() {
         var html = '<div><p><strong>我孫子東邦病院<\/strong><br \/>千葉県我孫子市我孫子1851-1<br \/>電話：04-7182-8166<br \/>平日　7:30 - 16:30<br \/>土曜日7:30 - 11:30<\/p><\/div>';
           marker.openInfoWindowHtml(html);
         });
         map.addOverlay(marker);
         GEvent.trigger(marker, "click");
     }
}
	 
observe(window , 'load' , mapInit);