function loadPage() {
if (document.getElementById) {  // DOM3 = IE5, NS6
document.getElementById('hidepage').style.visibility = 'hidden';
document.getElementById('footer_menu').style.visibility = 'visible';
}
else {
if (document.layers) {  // Netscape 4
document.hidepage.visibility = 'hidden';
document.footer_menu.visibility = 'visible';
}
else {  // IE 4
document.all.hidepage.style.visibility = 'hidden';
document.all.footer_menu.style.visibility = 'visible';
      }
   }
}

function loadBrochure() {
if (document.getElementById) {  // DOM3 = IE5, NS6
document.getElementById('hidepage').style.visibility = 'hidden';
document.getElementById('footer_menu').style.visibility = 'visible';
document.getElementById('thumb_part').style.visibility = 'visible';
}
else {
if (document.layers) {  // Netscape 4
document.hidepage.visibility = 'hidden';
document.footer_menu.visibility = 'visible';
document.thumb_part.visibility = 'visible';
}
else {  // IE 4
document.all.hidepage.style.visibility = 'hidden';
document.all.footer_menu.style.visibility = 'visible';
document.all.thumb_part.style.visibility = 'visible';
      }
   }
}