/**
*	This function expands or collapses the given submenu
*
*	\param	item_id	The DOM id of the subsection to be toggled
*/	
function toggleMenu(item_id) {
	// Get the handle to the item
	var section = document.getElementById(item_id);
	// Get the handle to the parent of the item
		// Toggle the item
		if (section.style.display != 'none') {
			// Hide the section
			section.style.display = 'none';
			// Show the plus image
		}	else {
			// Show the section
			section.style.display = '';
			// Show the minus image
		}
	return false;
}