function column_height(){
	d_right = document.getElementById('inset');
	d_left = document.getElementById('left');
	d_body = document.getElementById('body');
	
	d_right_height = d_right.offsetHeight;
	d_left_height = d_left.offsetHeight;

	if(d_right_height > d_left_height){
		new_height = d_right_height + 'px';
		d_left.style.height = new_height;
		d_body.style.height = new_height;
	}
	else{
		new_height_d_right = (d_left_height - 34) + 'px';
		new_height_d_body = (d_left_height + 10) + 'px';
		d_right.style.height = new_height_d_right;
		d_body.style.height = new_height_d_body;
	}
}

window.onload=function(){
	if(document.getElementById){
		column_height();
	}
}