function startFrogAnim() {
		document.frog.src="anim_frog.gif";
		document.ribbit.SelectionStart = 0;
		document.ribbit.Play();
	}

	function stopFrogAnim() {
		document.frog.src="static_frog.gif";
		document.ribbit.Stop();
	}

		var sound_name='ribbit_wav'
		var page_load=false
		var live_audio=false;
		var browser=(navigator.appName + navigator.appVersion.substring (0,1));


	function initSound() {

		if (browser == 'Netscape4')	{
			navigator.plugins.refresh(false);
			var numPlugins = navigator.plugins.length;
			for (i = 0; i < numPlugins; i++) {
				plugin = navigator.plugins[i];
				if (plugin.name == "LiveAudio") {
					live_audio=true;
				}
			}
		}
	}
	
	function anim_frog() {
		document.froggie.src = "anim_frog.gif";
		play_sound('ribbit_wav');
	}

	function play_sound(sound_name) {
		if (page_load==true) {
			if (browser=='Netscape4' && live_audio == true) {
				document[sound_name].play(false);
			}
			if (browser=='Microsoft Internet Explorer4') {
				document.embeds[sound_name].play();
			}
		}
	}