function precUp(id,i) {
	for (j=1;j<=i;j++) {
		document.getElementById('rating_'+id+'-'+j).src='/images/M_images/rating_star.png';
	}
}

function precDown(id) {
	for (j=1;j<6;j++) {
		document.getElementById('rating_'+id+'-'+j).src='/images/M_images/rating_star_blank.png';
	}
}

function submitValue(id,i) {
	document.getElementById('user_rating_'+id).value=i++;
	document.getElementById('form_rating_'+id).submit();
}