function fixdrop () {
	var colone = ge('left').scrollHeight;
	var coltwo = ge('right').scrollHeight;
	var content = ge('content-main').scrollHeight;
	if (coltwo > colone) { colone = coltwo; }
	if (colone > content) {
		ge('content-main').style.height = colone+'px';
	}
}
add_load_event(fixdrop);