var id_show = '';

function hide(object) {
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById(object).style.visibility = 'hidden';
document.getElementById(object).style.display = 'none';
}
else {
if (document.layers) { // Netscape 4
document.hideshow.visibility = 'hidden';
}
else { // IE 4
document.all.hideshow.style.visibility = 'hidden';
}
}
}

function show(object) {
if (id_show != '')
  {
  	hide(id_show);
  }
id_show = object;
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById(object).style.visibility = 'visible';
document.getElementById(object).style.display = 'block';
}
else {
if (document.layers) { // Netscape 4
document.hideshow.visibility = 'visible';
}
else { // IE 4
document.all.hideshow.style.visibility = 'visible';
}
}
}