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

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