// JavaScript Document

//<![CDATA[

function DOM(n) 
{
	if (document.all) return(document.all[n]);
	if (document.getElementById) return(document.getElementById(n));
	return(null);
}


function toggleDisplay( n ) 
{
	var o = DOM(n);

	if ( o == null )
		return;

	o.style.display = (o.style.display == '') ? "none" :  "";
}

function hide( n ) {
	var o = DOM(n);

	if ( o == null )
		return;

	if ( o.style.display == "" )
		o.style.display = "none";
}

function show( n ) {
	var o = DOM(n);

	if ( o == null )
		return;

	if ( o.style.display == "none" )
		o.style.display = "";
}

function showpanel( n ) {
	hide("vlzpanel");
	hide("vlz402panel");
	hide("vlz802panel");
	hide("vlz1202panel");
	hide("vlz1402panel");
	hide("vlz1602panel");
	hide("vlz1642panel");
	show( n );
}

//]]>