function hide1() {
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById('c1').style.visibility = 'hidden';
}
else {
if (document.layers) { // Netscape 4
document.hideShow.visibility = 'hidden';
}
else { // IE 4
document.all.hideShow.style.visibility = 'hidden';
}
}
}
function show1() {
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById('c1').style.visibility = 'visible';
}
else {
if (document.layers) { // Netscape 4
document.hideShow.visibility = 'visible';
}
else { // IE 4
document.all.hideShow.style.visibility = 'visible';
}
}
}



function hide2() {
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById('c2').style.visibility = 'hidden';
}
else {
if (document.layers) { // Netscape 4
document.hideShow.visibility = 'hidden';
}
else { // IE 4
document.all.hideShow.style.visibility = 'hidden';
}
}
}
function show2() {
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById('c2').style.visibility = 'visible';
}
else {
if (document.layers) { // Netscape 4
document.hideShow.visibility = 'visible';
}
else { // IE 4
document.all.hideShow.style.visibility = 'visible';
}
}
}


function hide3() {
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById('c3').style.visibility = 'hidden';
}
else {
if (document.layers) { // Netscape 4
document.hideShow.visibility = 'hidden';
}
else { // IE 4
document.all.hideShow.style.visibility = 'hidden';
}
}
}
function show3() {
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById('c3').style.visibility = 'visible';
}
else {
if (document.layers) { // Netscape 4
document.hideShow.visibility = 'visible';
}
else { // IE 4
document.all.hideShow.style.visibility = 'visible';
}
}
}