// JavaScript Document 
	function resize() {
	 var heightA = document.getElementById("nav").offsetHeight;
	 var heightB = document.getElementById("content").offsetHeight;
	 
	 if( heightB==0){heighttB = 1}
	 
	 var maxHeight = Math.max(heightA, heightB) - 100;  
	 document.getElementById("content").style.height = maxHeight + 'px'; 
	 document.getElementById("nav").style.height = maxHeight + 'px'; 
	 }