/**
 * Functions to change content font size
 **/

function increaseFontSize() {
  var className = getClassName();
  if ('contentScope1' == className) {
    d('dnn_contentpane').className = 'contentScope2';
  }
  else if ('contentScope2' == className) {
    d('dnn_contentpane').className = 'contentScope3';
  }
}

function decreaseFontSize() {
  var className = getClassName();
  if ('contentScope3' == className) {
    d('dnn_contentpane').className = 'contentScope2';
  }
  else if ('contentScope2' == className) {
    d('dnn_contentpane').className = 'contentScope1';
  }
}

function getClassName() {
  return d('dnn_contentpane').className;
}

function d(id) {
  return document.getElementById(id);
}