function toggleSections(){
	var uls = getElementsByClassName(document, 'ul', 'sections');
	var n = uls.length;
	for(i=0;i<=n-1;i++){
		uls[i].style.display='none';
		
	}
}
function openMySection(id){
	e = document.getElementById('section'+id);
	if(e.style.display=='block')e.style.display='none';
	else e.style.display='block';
}
addOnLoad(toggleSections);