function printer() {
 if (navigator.appVersion.indexOf("Mac") != -1) {
  var printWin = window.open("print.html", "printWin", "width = 300, height = 200, menubar = yes, resizable = yes, scrollbars = yes, status = no, toolbar = no, location = no")
  printWin.focus()
 }
 else if ((navigator.userAgent.indexOf('MSIE') != -1) && !(parseInt(navigator.appVersion) < 4) && !(navigator.userAgent.indexOf('MSIE 5') == -1)) {
  parent.printpage.focus()
  parent.printpage.print()
 }
 else if (document.layers) {
  parent.printpage.focus()
  parent.printpage.print()
 }
 else if (!document.all && document.getElementById && navigator.userAgent.indexOf('Netscape6')) {
  parent.printpage.focus()
  parent.printpage.print()
 }
 else {
  var printWin = window.open("print.html", "printWin", "width = 400, height = 200, menubar = yes, resizable = yes, scrollbars = yes, status = no, toolbar = no, location = no")
  printWin.focus()
 }
}