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