function shortenClass(tagName, className, maxLength) {
	aElements = document.getElementsByTagName(tagName);
	for(iElements = 0; iElements < aElements.length; iElements++) {
		if(aElements[iElements].className == className) {
			if(aElements[iElements].innerHTML.length > maxLength) 
				aElements[iElements].innerHTML = aElements[iElements].innerHTML.substring(0, maxLength) + '&hellip;';
		}
	}
}

function toggleDisplay(objId) {
	obj = document.getElementById(objId);
	if(obj.style.display !== 'block')
		obj.style.display = 'block';
	else
		obj.style.display = 'none';
}

function daysTitle(titleId, listId) {
	if(titleId && listId) {
		objTitle = document.getElementById(titleId);
		objList = document.getElementById(listId);
		if(objList.childNodes.length == 0)
			objTitle.style.display = 'none';
	}
}