<!--
// Toggles the layer visibility on
function show(layerName) {
document.getElementById(layerName).style.display ='block';
}

function hideLayer(layerName) {
document.getElementById(layerName).style.display ='none';
}

function hideAll() {
hideLayer('sub2');
hideLayer('sub3');
hideLayer('sub4');

//Put all layers used in the nav here.
//Copy the hideLayer() function above.
}


// -->