function toggleSection(id, headerElement)
{
	var theSection = document.getElementById(id);
	if( theSection.style.display == "none" || theSection.style.display == "" )
    {
		theSection.style.display="block";   // Expand the block
	    headerElement.style.backgroundImage = "url('Graphics/closeinfo.png')"; 
	} 
	else 
	{ 
		theSection.style.display="none";    // Shrink the block
	    headerElement.style.backgroundImage = "url('Graphics/learnmore.png')";
	}
	return false;
}