function writeDate() {
  var today = new Date();
  var year = today.getFullYear();
  document.write(year);
}

function popUp(page,x,y) {
  x = x + 20;
  y = y + 20;
  popup_window = window.open(page,'popup','location,menubar,resizable,scrollbars,status,toolbar,width=' + x + ',height=' + y);
}

function r_on(i) {
  if (document.images) { 
    if (document[i].src.indexOf("down") < 0) {
      document[i].src = "images/" + i + "_over.gif"; 
    }
  }
}

function r_off(i) {
  if (document.images) { 
    if (document[i].src.indexOf("down") < 0) {
      document[i].src = "images/" + i + ".gif"; 
    }
  }
}