var cont_height = parseInt(document.getElementById('content').offsetHeight);
var right_height = document.getElementById('right').offsetHeight;
if (cont_height > right_height) {
	document.getElementById('right').style.height = (parseInt(cont_height))+'px';
}
if (right_height > cont_height) {
	document.getElementById('content').style.height = (parseInt(right_height))+'px';
}