var onColor = "#987579";
var offColor = "#C3B29B";

function changeColor(color,id_num) {
  if (document.getElementById) {
    document.getElementById('td_' + id_num).style.background = color;
  }
}

function changeBorder(presence,id_num) {
  if (document.getElementById && presence == "true") {
    document.getElementById('photo_' + id_num).style.border = "1px solid #000066";
  }
  else if (document.getElementById) {
    document.getElementById('photo_' + id_num).style.border = "1px solid #C3B29B";
  }
}