function roll_goTo( url ) {
	window.location.href = url;
}

function roll_navBar( tableCellRef, hoverFlag, navStyle ) {
	if ( hoverFlag ) {
		switch ( navStyle ) {
			case 1:
				tableCellRef.style.backgroundColor = '#0f2f7e';
				tableCellRef.getElementsByTagName( 'a' )[0].style.color = '#fff';
				break;
			default:
				if ( document.getElementsByTagName ) {
					tableCellRef.getElementsByTagName( 'a' )[0].style.color = '#fff';
				}
		}
	} else {
		switch ( navStyle ) {
			case 1:
				tableCellRef.style.backgroundColor = '#ffffff';
				tableCellRef.getElementsByTagName( 'a' )[0].style.color = '#666';
				break;
			default:
				if ( document.getElementsByTagName ) {
					tableCellRef.getElementsByTagName( 'a' )[0].style.color = '#fff';
				}
		}
	}
}

function roll_navBarClick( tableCellRef, navStyle, url ) {
	roll_navBar( tableCellRef, 0, navStyle );
	roll_goTo( url );
}