function toggle(targetID)
{
	var target = document.getElementById(targetID);
	
	if(target.style.display == 'none')
	{	
		target.style.display = 'block';
	} 
	else if (target.style.display == 'block')
	{
		target.style.display = 'none';
	}
    else
    {
        target.style.display = 'block';
    }
}