function prepareLinks() {
  var links = document.getElementsByTagName("a");
  for (var i=0; i<links.length; i++) {
    if (links[i].getAttribute("class") == "printMe") {
      links[i].onclick = function() {
        printWindow();
        return false;
      }
    }
  }
}

function printWindow(){
   bV = parseInt(navigator.appVersion)
   if (bV >= 4) window.print()
}

addEvent(window, "load", prepareLinks);