function hover(obj, type) {
	var items = obj.getElementsByTagName( 'td' );
	for (i in items )
	{
        if ( isNaN(parseInt(i)) )
            continue;

        if ( type == 'hover') {
				items[i].style.textDecoration = 'underline';
			}
		else {
				items[i].style.textDecoration = 'none';
			}
	}
}

function showLogo(id, type) {
	document.getElementById(id).style.display = type;
}