function rollover(what) {
  var start = 1;
  var remark = new Array(15);
  remark[0] = "";
  remark[1] = "";
  remark[2] = "";
  remark[3] = "";
  remark[4] = "";
  remark[5] = "";
  remark[6] = "";
  remark[7] = "";
  remark[8] = "";
  remark[9] = "";
  remark[10] = "";
  remark[11] = "";
  remark[12] = "";
  remark[13] = "";
  remark[14] = "";
  remark[15] = "";
document.lpane.src='gallery/commercial/c'+what+'.jpg';
document.getElementById("remark").innerHTML=remark[what-start];

}