function toggleQuestion(handle){
	if (document.getElementById('question' + handle).className == 'yellow-background'){ // we need to deactivate the question
		document.getElementById('question' + handle).className = 'yellow-nobackground';
		document.getElementById('answer' + handle).className = 'answer-hide';					
	}
	else{
		document.getElementById('question' + handle).className = 'yellow-background';
		document.getElementById('answer' + handle).className = 'answer-show';
		
	}
}