num = 1;
function rotate() {
	if(num == 1 || num == 2 || num ==3 || num ==4) {
    	var anim = new YAHOO.util.Anim('rotatePic' + num, { opacity: { to: 0 } }, 1, YAHOO.util.Easing.easeOut);
		anim.animate();
		num++;
	} else {
		num = 1;	
    	var anim = new YAHOO.util.Anim('rotatePic1', { opacity: { from: 0, to: 100 } }, 1, YAHOO.util.Easing.easeOut);
		anim.animate();
    	var anim1 = new YAHOO.util.Anim('rotatePic2', { opacity: { to: 100 } }, 1, YAHOO.util.Easing.easeOut);
		anim1.animate();
    	var anim2 = new YAHOO.util.Anim('rotatePic3', { opacity: { to: 100 } }, 1, YAHOO.util.Easing.easeOut);
		anim2.animate();
    	var anim3 = new YAHOO.util.Anim('rotatePic4', { opacity: { to: 100 } }, 1, YAHOO.util.Easing.easeOut);
		anim3.animate();
	}
}

function load() {
      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("map"));
        map.setCenter(new GLatLng(47.40, -121.46), 6);
		map.setMapType(G_SATELLITE_TYPE);
      }
	window.setInterval('rotate()',8000);
}
YAHOO.util.Event.addListener(window, "load", load);
YAHOO.util.Event.addListener(window, "unload", GUnload);