function HasClassName(objElement, strClass) {
	if ( objElement.className )
		{
		var arrList = objElement.className.split(' ');
		var strClassUpper = strClass.toUpperCase();
		for ( var i = 0; i < arrList.length; i++ ) {
			if ( arrList[i].toUpperCase() == strClassUpper ) {
				return true;
			}
		}
	}
	return false;
}

function AddClassName(objElement, strClass, blnMayAlreadyExist) {
	if ( objElement.className ) {
		var arrList = objElement.className.split(' ');
		if ( blnMayAlreadyExist ) {
			var strClassUpper = strClass.toUpperCase();
			for ( var i = 0; i < arrList.length; i++ ) {
				if ( arrList[i].toUpperCase() == strClassUpper ) {
					arrList.splice(i, 1);
					i--;
				}
			}
		}
		arrList[arrList.length] = strClass;
		objElement.className = arrList.join(' ');
	}
	else {
		objElement.className = strClass;
	}
}

function RemoveClassName(objElement, strClass) {
	if ( objElement.className ) {
		var arrList = objElement.className.split(' ');
		var strClassUpper = strClass.toUpperCase();
		for ( var i = 0; i < arrList.length; i++ ) {
			if ( arrList[i].toUpperCase() == strClassUpper ) {
				arrList.splice(i, 1);
				i--;
			}
		}
		objElement.className = arrList.join(' ');
	}
}