var left = document.getElementById('HomeLeft');
var middle = document.getElementById('HomeMiddle');
var right = document.getElementById('HomeRight');
var leftHeight = left.clientHeight;
var middleHeight = middle.clientHeight;
var rightHeight = right.clientHeight;

if (leftHeight > middleHeight) {
    if (leftHeight > rightHeight) {
        right.style.height = leftHeight + 'px';
        middle.style.height = leftHeight + 'px';
    }
    else {
        left.style.height = rightHeight + 'px';
        middle.style.height = rightHeight + 'px';
    }
}
else {
    if (middleHeight > rightHeight) {
        left.style.height = middleHeight + 'px';
        right.style.height = middleHeight + 'px';
    }
    else {
        left.style.height = rightHeight + 'px';
        middle.style.height = rightHeight + 'px';
    }

}