function setheight() {

document.getElementById('alpha').style.height = "auto";
document.getElementById('beta').style.height = "auto";
document.getElementById('gamma').style.height = "auto";

var betaheight = document.getElementById('beta').offsetHeight;
var gammaheight = document.getElementById('gamma').offsetHeight;
var alphaheight = document.getElementById('alpha').offsetHeight;

var maxheight = betaheight;
if(gammaheight>maxheight) maxheight = gammaheight;
if(alphaheight>maxheight) maxheight = alphaheight;

betaheight = maxheight;
gammaheight = maxheight;
alphaheight = maxheight;

document.getElementById('alpha').style.height = maxheight + "px";
document.getElementById('beta').style.height = maxheight + "px";
document.getElementById('gamma').style.height = maxheight + "px";

}

function toggleComments() {
  document.getElementById('commentBlock').style.display = 'block';
  document.getElementById('meta').style.display = 'none';
  setheight();
}