var last = -1;

function showAnsw(id)
{
// 	alert($('answ_' + id).style.display);
	if ($('answ_' + id).style.display == "block")
	{
		$('answ_' + id).style.display = "none";
		$('img_' + id).src = '/res/design/vop_bulet_plus.png';
		$('link_' + id).style.color = '#000000';
	}
	else
	{
		$('answ_' + id).style.display = "block";
		$('img_' + id).src = '/res/design/vop_bulet_min.png';
		$('link_' + id).style.color = '#777777';
	}
	
	if (last > 0 && last != id)
	{
		$('answ_' + last).style.display = "none";
		$('img_' + last).src = '/res/design/vop_bulet_plus.png';
		$('link_' + last).style.color = '#000000';
	}
	
	last = id;
	
}