function signGB(sign_nr) {
	sign = eval('sign_' + sign_nr + '.style');
	sign.display = (sign.display == "none" ? "block" : "none") ;
}

function ReviewOmdome(Review_nr) {
	Review = eval('Review_' + Review_nr + '.style');
	Review.display = (Review.display == "none" ? "block" : "none") ;
}