function wavesOver() { 
 if (document.images) document.waves.src="/_images/top-wave2.gif";
}

function wavesOut() {
 if (document.images) document.waves.src="/_images/top-wave1.gif";
}

function compassOver() { 
 if (document.images) document.compass.src="/_images/bot-waveL2.gif";
}

function compassOut() {
 if (document.images) document.compass.src="/_images/bot-waveL1.gif";
}