function ResizeDivs() {

	var heightNavigation = document.getElementById('navigation').offsetHeight;
	var heightContent = document.getElementById('content').offsetHeight;
	
	if (heightNavigation > heightContent ) {
		height = heightNavigation;
	} else {
		height = heightContent ;
	}
	
	document.getElementById('body').style.height = height + document.getElementById('header').offsetHeight + 'px';
	document.getElementById('navigation').style.height = height + 'px';
	document.getElementById('content').style.height = height + 'px';

}