right_height = document.getElementById('index_right').scrollHeight;
left_height = document.getElementById('index_left').scrollHeight;
center_height = document.getElementById('index_center').scrollHeight;

var Array0 = new Array(right_height, left_height, center_height);
Array0.sort(function(a, b) { return a - b });


document.getElementById('index_left').style.height = document.getElementById('index_right').style.height = Array0[2];