var div_obj;

function ad_show(id)
{
	div_obj = document.getElementById("div_"+id);
	if (div_obj) 
	{
		if (div_obj.style.display == 'none') div_obj.style.display = 'block';
		else div_obj.style.display = 'none';
	}
	return false;
}

function ad_hide(id)
{
	div_obj = document.getElementById('div_'+id);
	if (div_obj) div_obj.style.display = 'none';
	return false;
}

function ad_showAll()
{
	for (var i in ids)
	{
		div_obj = document.getElementById('div_'+ids[i]);
		if (div_obj) div_obj.style.display = 'block';
	}
	return false;
}

function ad_hideAll()
{
	for (var i in ids)
	{
		div_obj = document.getElementById('div_'+ids[i]);
		if (div_obj) div_obj.style.display = 'none';
	}
	return false;
}