$(document).ready(function() {
    $("#sortable tbody").sortable({
        helper: fixHelper,
        axis: 'y'
     });
    $("#sortable tbody").disableSelection();
    $("#sortable tbody").bind('sortupdate', function(event, ui) {
        updateSongList();
        $.post(window.location + "/update", $('#chart').serialize());
    });
});

var fixHelper = function(e, ui) {
    setColWidths();
    return ui;
};