How to check if DOM is ready without a framework?

Question

The question is so like a zillion others here and on the web - How to check if DOM has loaded in Javascript? But here\'s the catch:

• Without using a framework l

Answer 1

This works for all browsers and is short and concise:

var execute = function () {
  alert("executing code");  
};

if ( !!(window.addEventListener) )
  window.addEventListener("DOMContentLoaded", execute)
else // MSIE
  window.attachEvent("onload", execute)