/**
 *
 * @prop XMLElement rootEl
 * @prop string name
 * @prop string replaceWith
 */
function replaceTag(rootEl, name, replaceWith) {
    var elements = rootEl.xmlElements;
    for(var i = 0; i < elements.length; ++i) {
        if(elements[i].markupTag.name === name) {
            elements[i].markupTag = replaceWith;
            break;
        }
    }
}