Detect if font-family is Honored

Detect if font-family is honored in the document via http://juicystudio.com/article/icon-fonts-user-defined-stylesheets.php

HTML

<h1>whaddup</h1>

CSS

h1{font-family:"Times New Roman", Arial, sans-serif}

JavaScript

function checkFont(strFamily) {
  var objDiv = document.createElement('div');

  objDiv.style.fontFamily = strFamily;
  objDiv.appendChild(document.createTextNode('FONT TEST'));

  if (window.getComputedStyle) {
      return window.getComputedStyle(objDiv, null).getPropertyValue('font-family') === strFamily;
  }

  return objDiv.currentStyle.fontFamily === strFamily;
}
var bHonoured = checkFont('Times New Roman');
console.log(bHonoured);