//select which section is shown, the var sel is an index in the csa array
var expandArticle = function(whatArticle) {
	document.getElementById(whatArticle).style.display='block';
	document.getElementById(whatArticle + "_link").style.display='none';
	document.getElementById(whatArticle + "_collapse").style.display='inline';
}

var collapseArticle = function(whatArticle) {
	document.getElementById(whatArticle).style.display='none';
	document.getElementById(whatArticle + "_link").style.display='inline';
	document.getElementById(whatArticle + "_collapse").style.display='none';
}