/**
 * simply changes the picture of the given element
 *
 * @param Id =
 *            Id of the element where the picture is changed
 * @param picture =
 *            new picture to show
 */
function changePictureSimple(Id, picture) {
	window.document.getElementById(Id).src = picture;
}

/**
 * shows the feature Box, enlightens List Item
 *
 * @param element
 */
function showFeatureBox(element) {
	document.getElementById(element.id + 'Box').style.display = 'block';
	document.getElementById(element.id).style.color = '#FFFFFF';
}

/**
 * hides the feature Box, darkens List Item
 *
 * @param element
 */
function hideFeatureBox(element) {
	document.getElementById(element.id + 'Box').style.display = 'none';
	document.getElementById(element.id).style.color = '#FFF9B9';
}