function hasClass(element, _className) {
	var upperClass = _className.toUpperCase();
	if (element.className) {
		var classes = element.className.split(' ');
		for (var i = 0; i < classes.length; i++) {
			if (classes[i].toUpperCase() == upperClass) {
				return true;
			}
		}
	}
	return false;
}

function addClass(element, _class) {
	if (!hasClass(element, _class))
		element.className += element.className ? " " + _class : _class;
}

function hideDiv(divName) {
	tempDiv = document.getElementById(divName);
	if (!tempDiv) {
		return;
	}
	if (tempDiv.style.display == "inline") {
		addClass(tempDiv, "wasinline");
	} else if (tempDiv.style.display == "block") {
		addClass(tempDiv, "wasblock");
	}
	tempDiv.style.display="none";
}

function showDiv(divName) {
	var tempDiv = document.getElementById(divName);
	if (!tempDiv) {
		return;
	}
	
	if (hasClass(tempDiv, "wasinline")) {
		tempDiv.style.display = "inline";
		removeClass(tempDiv, "wasinline");
	} else if (hasClass(tempDiv, "wasblock")) {
		tempDiv.style.display = "block";
		removeClass(tempDiv, "block");
	} else {
		tempDiv.style.display = getDisplayStyleByTagName(tempDiv);
	}
}