function resize() { 
	 var heightA = document.getElementById("col").offsetHeight;
	 var heightC = document.getElementById("col2").offsetHeight;
	
	 var maxHeight = Math.max(heightA, heightC);  
	 
	 document.getElementById("col").style.height = (maxHeight) + 'px'; 
	 document.getElementById("col2").style.height = (maxHeight) + 'px'; 
	 
	 document.getElementById("content-bg").style.height = (maxHeight) + 'px'; 
	 
	 document.getElementById("footer").style.display = 'block'; 
	 }