/**
 * @author dirk
 */
window.onload = function() {
	hideElements();
	btnEffects();
}

function 	hideElements() {
	if ($('questionList')) {
		elem = document.getElementsByClassName('questionDesc');
		for (i=0; i< elem.length; i++) {
			Element.hide(elem[i])			
		}
		elem = document.getElementsByClassName('hideLink');
		for (i=0; i< elem.length; i++) {
			Element.hide(elem[i])			
		}
	}
}

function displayDesc(index) {
	e = $('desc_' + index);
	Effect.Appear('desc_' + index);
	Element.hide('display_' + index);
	Element.show('hide_' + index);
}

function hideDesc(index) {
	e = $('desc_' + index);
	e.toggle('height', {duration: 0.5});
	Element.show('display_' + index);
	Element.hide('hide_' + index);
}

function btnEffects() {
	var inputButtons = $$("input.btn" );

	for ( var i=0; i<inputButtons.length; i++ ) {
		inputButtons[i].onmouseover = function() {
			Element.addClassName(this, 'mover');
		}
		inputButtons[i].onmouseout = function() {
			Element.removeClassName(this, 'mover');
		}	
	}
}