function getBrowserName() {
  var aName  = navigator.appName.toUpperCase();
  var uName = navigator.userAgent.toUpperCase();

  if (uName.indexOf("SAFARI") >= 0)  return "Safari";
  if (uName.indexOf("OPERA") >= 0)  return "Opera";
  if (uName.indexOf("FIREFOX") >= 0)  return "Firefox";
  if (aName.indexOf("NETSCAPE") >= 0)  return "Netscape";
  if (aName.indexOf("MICROSOFT") >= 0) return "Explorer";
  return "";
}

function getBrowserVersion() {
  var browser = getBrowserName();
  var version = 0;
  var s = 0;
  var e = 0;
  var appVer  = navigator.appVersion;
  var uName  = navigator.userAgent.toUpperCase();

  if (browser == "Safari") {
    s = uName.indexOf("SAFARI/",0);
    version = (uName.substring(s+7,s+99));
    if (version < 400) version = 1;
    if ((version >= 400) < (version <= 499)) version = 2;
    if (version >= 500) version = 3;
  }

  if (browser == "Opera") {
    s = uName.indexOf("OPERA",0) + 6;
    e = uName.indexOf(" ",s);
    version = parseFloat(uName.substring(s,e));
  }

  if (browser == "Firefox") {
    s = uName.indexOf("FIREFOX/",0);
    version = parseFloat(uName.substring(s+8,s+8+3));
  }

  if (browser == "Netscape") {
    s = appVer.indexOf(" ",0);
    version = eval(appVer.substring(0,s));
    if (version >= 5) version++;
  }

  if (browser == "Explorer") {
    appVer  = navigator.userAgent;
    s = appVer.indexOf("MSIE ",0) + 5;
    e = appVer.indexOf(";",s);
    version = eval(appVer.substring(s,e));
  }
  return version;
}

function MM_swapImage() {
  var i, j = 0, x, a = MM_swapImage.arguments;
  document.MM_sr = new Array;
  for(i = 0; i < (a.length - 2); i += 3) {
    if ((x = MM_findObj(a[i])) != null) {
      document.MM_sr[j++] = x;
      if(!x.oSrc) {
        x.oSrc = x.src;
      }
      x.src=a[i+2];
    }
  }
}

function MM_swapImgRestore() {
  var i, x, a = document.MM_sr;
  for(i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++) {
    x.src = x.oSrc;
  }
}

function MM_findObj(n, d) {
  var p, i, x;
  if(!d) {
    d = document;
  }
  if((p = n.indexOf("?")) > 0 && parent.frames.length) {
    d = parent.frames[n.substring(p + 1)].document;
    n = n.substring(0,p);
  }
  if(!(x = d[n]) && d.all) {
    x=d.all[n];
  }
  for (i = 0; !x && i < d.forms.length; i++) {
    x = d.forms[i][n];
  }
  for( i = 0; !x && d.layers && i < d.layers.length; i++) {
    x = MM_findObj(n, d.layers[i].document);
  }
  if(!x && d.getElementById) {
    x = d.getElementById(n);
  }
  return x;
}

function openwindow(url){
  var popWidth = 440, popHeight = 570
  window.open("fruit/" + url + ".html","_blank", "width = " + popWidth + ",height = " + popHeight + ",top = " + ((screen.height - popHeight)/2) + ",left =" + ((screen.width - popWidth)/2));
}