function hidediv(pass) {
var divs = document.getElementsByTagName('div');
for(i=0;i<divs.length;i++){
if(divs[i].id.match(pass)){//if they are 'see' divs
if (document.getElementById) // DOM3 = IE5, NS6
divs[i].style.visibility="hidden";// show/hide
else
if (document.layers) // Netscape 4
document.layers[divs[i]].display = 'hidden';
else // IE 4 
document.all.hideshow.divs[i].visibility = 'hidden'; 
} 
} 
} 

function showdiv(pass) { 
var divs = document.getElementsByTagName('div'); 
for(i=0;i<divs.length;i++){ 
if(divs[i].id.match(pass)){ 
if (document.getElementById) 
divs[i].style.visibility="visible"; 
else 
if (document.layers) // Netscape 4 
document.layers[divs[i]].display = 'visible'; 
else // IE 4 
document.all.hideshow.divs[i].visibility = 'visible'; 
} 
} 
}