function show_hide(element)
{
	var el=$(element);
	if(el.style.display == 'none')
		el.style.display = '';
	else
		el.style.display = 'none';
}

function show(element)
{
	var el=$(element);
	el.style.display = '';
	return false;
}
function hide(element)
{
	var el=$(element);
	el.style.display = 'none';
	return false;
}