deletions | additions       diff --git a/panel_test.html b/panel_test.html  index 500382b..d137087 100644  --- a/panel_test.html  +++ b/panel_test.html 
...
d3.csv("data/sample_data_cut.csv", function(error, data) {  csv_data = data;  update_state(states[0]);  d3.selectAll("body button").data(states)  .enter().append("button")  .html(function(d, i){ return d['name']; });  });  d3.select("body").data(states).enter().append("a").attr("class", "button").html(function(d, i){return i+1})    //b1    function update_state(state) {   var nRows = state['grid']['nRows'],