voltsrc="";
function preloadimages() {
  g1 = new Image();
  g1.src = "images/m_01_kiem.gif";
  g2 = new Image();
  g2.src = "images/m_02_kiem.jpg";
  g3 = new Image();
  g3.src = "images/m_03_kiem.jpg";
  g4 = new Image();
  g4.src = "images/m_04_kiem.jpg";
  g5 = new Image();
  g5.src = "images/m_05_kiem.jpg";
  g6 = new Image();
  g6.src = "images/m_06_kiem.jpg";
  g7 = new Image();
  g7.src = "images/m_07_kiem.jpg";
  g8 = new Image();
  g8.src = "images/m_10_kiem.jpg";
  g9 = new Image();
  g9.src = "images/m_11_kiem.jpg";
}