function expandnews(thistag){
  
  hideallnews();
  
  styleObj=document.getElementById("n_"+thistag).style;
  styleObj.display='block';
  document.getElementById("i_"+thistag).innerHTML = document.getElementById("i_"+thistag).innerHTML.replace("plus.png", "minus.png");
}

function hideallnews() {
	document.getElementById("newses").innerHTML = document.getElementById("newses").innerHTML.replace("minus.png", "plus.png"); //close all "folders"
	var childNodeArray = document.getElementById('newses').childNodes;
	var arrlenght = childNodeArray.length;
	// Hide all news
	for ( var i = 0; i < childNodeArray.length; i++ ) {
		//var name = childNodeArray[i];
		var objid = childNodeArray[i].id;
		if (objid) {
			if (objid.substring(0,2)=="n_") document.getElementById(objid).style.display='none'; //apply only to objects with ids n_*
			}
		}
}