$(window).load(function() {
    var containers = new Array;
    containers[0] = $("#left");
    containers[1] = $("#main");
    containers[2] = $("#right");
    var tallest = containers[0].height();
    var tallestId = 0;
    for(i=0;i<3;i++){
        if(containers[i].height() > tallest){
            tallest = containers[i].height();
            tallestId = i;
        }
    }
    for(i=0;i<3;i++){
        if(i != tallestId){
            var height = (tallest - containers[i].height()) + containers[i].children(".container-body:last").height();
            containers[i].children(".container-body:last").height(height);
        }
    }

});