$(document).ready(function() {

    //$("#col0 div.homepage_box:nth-child(3n-1)").css("margin-right", "0");

    var curHeight = 0;
    var maxHeight = 0;
    $("#col0 div.homepage_box").each(function() {
        curHeight = $(this).height();
        if(curHeight > maxHeight) {
            maxHeight = curHeight;
        }
    });
    $("#col0 div.homepage_box").css("height", maxHeight + "px");

});