var s_opened = '';
var t = null;

function Zobraz ( s )

{
	clearTimeout ( t );

	if ( s_opened == s ) return;
	else if ( s_opened != '' ) _NaozajSkry ( s_opened );

	var o_obj = document.getElementById ( s );

	if ( o_obj == null ) return;

	o_obj.style.zIndex = 1000;
	o_obj.style.display = 'block';

	s_opened = s;
}

function Skryj ( s )
{
	t = setTimeout ( "_NaozajSkry('" + s + "')", 500 );
}

function _NaozajSkry ( s )
{
	clearTimeout ( t );

	var o_obj = document.getElementById ( s );

	if ( o_obj == null ) return;

	o_obj.style.display = 'none';

	s_opened = '';
}