function toggle_visibility(id) {

	// Turn off all possible member blocks
	var letters = "abcdefghijklmnopqrstuvwxyz";
	for(i = 0; i < letters.length;  i++)
	{
		var block_name = 'members_' + letters.charAt(i);
		var member_block = document.getElementById(block_name);
		if(member_block != null) 
			member_block.style.display = 'none';
	}		

	// Turn on the selected one.	
	var e = document.getElementById(id);
	if(e.style.display == 'block')
		e.style.display = 'none';
	else
		e.style.display = 'block';
	}

function resize_body_text(direction)
{
	var curr_size;
	var new_size;

	curr_size = document.getElementById('bodycopy').style.fontSize;
	if (direction == '+')
		new_size = curr_size + 2; 
	else
		new_size = curr_size - 2;

	alert(curr_size);
	
	alert(document.getElementById('bodycopy').style.fontSize);

}