javascript + css + json

javascript

var colors = {x: y};

for (h=0;h<24;h++){
  i=h*2;
  val1 = eval("json."+(root+i));//concat strings and values to access h vars
  val2 = eval("json."+(root+(i+1)));
  if (val1 != null && val2 != null){
    table.append("<tr style=\"background-color:"+ colors[x] +"\"><td>"+formattedH(h)+":00 </td> <td id="+i+">"+val1+"</td><td id="+(i+1)+">"+val2+"</td></tr>");
  }
}