// JavaScript Document
function equalColumns(){
  var l = document.getElementById('mainNav');
  var r = document.getElementById('mainContent');

  var l2 = document.getElementById('news');
  var r2 = document.getElementById('link');
  
  r2.offsetHeight >= l2.offsetHeight ? l2.style.height = r2.offsetHeight + "px" : r2.style.height = l2.offsetHeight + "px";
  r.offsetHeight >= l.offsetHeight ? l.style.height = r.offsetHeight + "px" : r.style.height = l.offsetHeight + "px";
}
window.onload = function(){
equalColumns();
}