function opentreebranch(uid) {
	var opentreeElement = document.getElementById('openTreeElement'+uid);
	if (opentreeElement) {
		var classattrib = document.getElementById('openTreeElement'+uid).className;
		var classes = classattrib.split(" ");
		var counter = 0;
		var newclasses = '';
		var openclass = ' open';
		while(counter < classes.length) {
			if(classes[counter] == 'open') {
				openclass = 'close';
				classes[counter] = '';
			}
			if(classes[counter] == 'close') {
				openclass = 'open';
				classes[counter] = '';
			}
			counter++;
		}
		newclasses = classes.join(" ");
		newclasses += openclass;
		document.getElementById('openTreeElement'+uid).className=newclasses;
	}
}


function changeClass() {
	$$('.greyBox').each(function (n) {n.addClassName('greyBoxtrainings')});
	$$('.greyBox').each(function (n) {n.removeClassName('trainings')});
	
	$$('.fceLeftCol').each(function (n) {n.addClassName('trainings')});
}