function showDiv(pass) {
	var divs = document.getElementsByTagName('div');
	document.f.modulo.value = pass;
	for(i=0;i<divs.length;i++){
		if(divs[i].id.match(pass)){//if they are 'see' divs
			if (divs[i].style.display !="block" ){ // DOM3 = IE5, NS6
				divs[i].style.visibility="visible";// show/hide
				divs[i].style.display="block";
			}else{
				divs[i].style.visibility="hidden";
				divs[i].style.display="none";
				}
			
		} else {
			if (document.getElementById){
				divs[i].style.visibility="hidden";
				divs[i].style.display="none";
				}
			
		}
	}
}