// hide or show the requested div by changing its display style
function showhideDiv(q_ref)
{
	if (document.all) { //IS IE 4 or 5 (or 6 beta) 
		if (document.all.item(q_ref).style.display == 'none')
			document.all.item(q_ref).style.display = 'block';
		else
			document.all.item(q_ref).style.display = 'none';
	}
	if (document.layers) { //IS NETSCAPE 4 or below 
		if (document.layers[q_ref].display == 'none')
			document.layers[q_ref].display = 'block';
		else
			document.layers[q_ref].display = 'none';
	}
	if (document.getElementById &&!document.all) {
		hza = document.getElementById(q_ref);

		if (hza.style.display == 'none')
			hza.style.display = 'block';
		else
			hza.style.display = 'none';
	}
}