function hideOrUnhideMB(elem){
	var elemToHide = getElementsByIdStartsWith(elem.parentNode.parentNode.parentNode, 'div', elem.name + '_p');
	if (elemToHide != null){
		if (elem.checked){
			elemToHide.style.display = 'none';
		}
		else{
			elemToHide.style.display = 'block';                                
		}
	}
}



function getElementsByIdStartsWith(container, selectorTag, suffix) {
    var myPosts = container.getElementsByTagName(selectorTag);
    for (var i = 0; i < myPosts.length; i++) {
		if (myPosts[i].id != null){
			if (myPosts[i].id.indexOf(suffix, 0)>0){
				return myPosts[i];
			}
		}
    }
    return null;
}