// Exif metadata display for MediaWiki file uploads
//
// Add an expand/collapse link and collapse by default if set to
// (with JS disabled, user will see all items)
//
// attachMetadataToggle('mw_metadata', 'More...', 'Fewer...');

function attachMetadataToggle( tableId, showText, hideText ) {
	if ( document.createTextNode ) {
		var box = document.getElementById( tableId );
		if ( !box ) {
			return false;
		}

		var tbody = box.getElementsByTagName('tbody')[0];

		var row = document.createElement( 'tr' );

		var col = document.createElement( 'td' );
		col.colSpan = 2;

		var link = document.createElement( 'a' );
		link.href = '#';

		link.onclick = function() {
			if ( box.className == 'mw_metadata collapsed' ) {
				changeText( link, hideText );
				box.className = 'mw_metadata expanded';
			} else {
				changeText( link, showText );
				box.className = 'mw_metadata collapsed';
			}
			return false;
		};

		var text = document.createTextNode( hideText );

		link.appendChild( text );
		col.appendChild( link );
		row.appendChild( col );
		tbody.appendChild( row );

		// And collapse!
		link.onclick();

		return true;
	}
	return false;
}