/*
 * @function getElementsByClassName
 */
function getElementsByClassName(oElm, strTagName, strClassName){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/\-/g, "\\-");
	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	var oElement;
	for(var i=0; i<arrElements.length; i++){
		oElement = arrElements[i];
		if(oRegExp.test(oElement.className)){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}

/*
 * Update <span> tags met een bepaalde class
 */
function updateSpans (value,className)
{
	elements = getElementsByClassName(document,"span",className);
	for (i = 0; i < elements.length; i++)
	{
		elements[i].innerHTML = value;
	}
}