function fontSize1() {
  var oContentMain = document.getElementById('content-main');
  if( oContentMain != null ) {
    oContentMain.style.fontSize = "1.4em";
  }
  var oContentMainFullWidth = document.getElementById('content-main-fullwidth');
  if( oContentMainFullWidth != null ) {
    oContentMainFullWidth.style.fontSize = "1.4em";
  }
  var oContentRightWhite = document.getElementById('content-right-white');
  if( oContentRightWhite != null ) {
    oContentRightWhite.style.fontSize = "1.4em";
  }
  var oContentMainLeft = document.getElementById('content-main-left');
  if( oContentMainLeft != null ) {
    oContentMainLeft.style.fontSize = "1.4em";
  }
}

function fontSize2() {
  var oContentMain = document.getElementById('content-main');
  if( oContentMain != null ) {
    oContentMain.style.fontSize = "1.6em";
  }
  var oContentMainFullWidth = document.getElementById('content-main-fullwidth');
  if( oContentMainFullWidth != null ) {
    oContentMainFullWidth.style.fontSize = "1.6em";
  }
  var oContentRightWhite = document.getElementById('content-right-white');
  if( oContentRightWhite != null ) {
    oContentRightWhite.style.fontSize = "1.6em";
  }
  var oContentMainLeft = document.getElementById('content-main-left');
  if( oContentMainLeft != null ) {
    oContentMainLeft.style.fontSize = "1.6em";
  }
}

function fontSize3() {
  var oContentMain = document.getElementById('content-main');
  if( oContentMain != null ) {
    oContentMain.style.fontSize = "1.8em";
  }
  var oContentMainFullWidth = document.getElementById('content-main-fullwidth');
  if( oContentMainFullWidth != null ) {
    oContentMainFullWidth.style.fontSize = "1.8em";
  }
  var oContentRightWhite = document.getElementById('content-right-white');
  if( oContentRightWhite != null ) {
    oContentRightWhite.style.fontSize = "1.8em";
  }
  var oContentMainLeft = document.getElementById('content-main-left');
  if( oContentMainLeft != null ) {
    oContentMainLeft.style.fontSize = "1.8em";
  }
}