function show(id){
	document.getElementById(id).style.visibility = "visible";
}

function hide(id){
	document.getElementById(id).style.visibility = "hidden";
}



function warmup() {
// initialize the visibility of each menu here
document.getElementById("bios").style.visibility = "hidden";
document.getElementById("services").style.visibility = "hidden";
document.getElementById("movies").style.visibility = "hidden";
document.getElementById("contact").style.visibility = "hidden";
document.getElementById("associates").style.visibility = "hidden";

}