$(document).ready(function () {

    /* Make boxes same height */
    $('#innercontent').sameHeights();

});

$.fn.sameHeights = function () {
    var myheight = 0
    if ($('#innercontent').height() > $('#sidebox').height()) {
        myheight = $('#innercontent').height();
        $('#sidebox').css({ 'height': myheight });
    }
    else {
        myheight = $('#sidebox').height();
        $('#innercontent').css({ 'height': myheight });
        $('#sidebox').css({ 'height': myheight  });
    }
    return this;
};