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HomeWeb Front-endJS Tutorialjs detects that the client is not firefox and prompts for download_javascript skills

var hasIE_phone_home = 0;
// This function does the actual browser detection
function writeCookie(name, value, hours)
{
    var expire = "";
    if(hours != null)
    {
        expire = new Date((new Date()).getTime()   hours * 360000000);
        expire = "; expires="   expire.toGMTString();
    }
    document.cookie = name   "="   escape(value)   expire;
}

// Example:
// alert( readCookie("myCookie") );
function readCookie(name)
{
    var cookieValue = "";
    var search = name   "=";
    if(document.cookie.length > 0)
    {
        offset = document.cookie.indexOf(search);
        if (offset != -1)
        {
            offset  = search.length;
            end = document.cookie.indexOf(";", offset);
            if (end == -1) end = document.cookie.length;
            cookieValue = unescape(document.cookie.substring(offset, end))
        }
    }
    return cookieValue;
}



function hasIE_hasIE() {
  var ua = navigator.userAgent.toLowerCase();
  return ((ua.indexOf('msie') != -1) && (ua.indexOf('opera') == -1) && 
          (ua.indexOf('webtv') == -1) &&
          (location.href.indexOf('seenIEPage') == -1));
}

function hasIE_showOnlyLayer(whichLayer)
{
  if (document.getElementById)
    {
      var style2 = document.getElementById(whichLayer);
    }
  else if (document.all)
    {
      var style2 = document.all[whichLayer];
    }
  else if (document.layers)
    {
      var style2 = document.layers[whichLayer];
    }
  var body = document.getElementsByTagName('body');
  body[0].innerHTML = style2.innerHTML;
}

function hasIE_showLayer(whichLayer)
{
  if (document.getElementById)
    {
      var style2 = document.getElementById(whichLayer).style;
      style2.display = "block";
    }
  else if (document.all)
    {
      var style2 = document.all[whichLayer].style;
      style2.display = "block";
    }
  else if (document.layers)
    {
      var style2 = document.layers[whichLayer].style;
      style2.display = "block";
    }
}

function hasIE_moveAd(adid) {
  if (document.getElementById)
    {
      var ad = document.getElementById('hasIE_ad');
      var adloc = document.getElementById(adid);
    }
  else if (document.all)
    {
      var ad = document.all['hasIE_ad'];
      var adloc = document.all[adid];
    }
  else if (document.layers)
    {
      var ad = document.layers['hasIE_ad'];
      var adloc = document.layers[adid];
    }
  adloc.innerHTML = ad.innerHTML;
}

// Hides and shows sections of the page based on whether or not it's
// running in IE
function hasIE_hideAndShow() {
  if (hasIE_hasIE()) {
    hasIE_showLayer("hasIE_level1");
          if (hasIE_phone_home == 1)
            hasIE_phoneHome('getIE_pingimage1');
  } else {
    if (hasIE_phone_home == 1)
      hasIE_phoneHome('getIE_pingimage0');
  }
}

function hasIE_phoneHome(image) {
  if (document.getElementById)
    {
      var img = document.getElementById(image);
    }
  else if (document.all)
    {
      var img = document.all[image];
    }
  else if (document.layers)
    {
      var img = document.layers[image];
    }
  //img.setAttribute('src','http://getunder50.com/ping.php?host=' location.host);

}

function hasIE_ContinueWithoutFF() {
    if (location.href.indexOf('?') != -1)
        location.href  = '&seenIEPage=1';
    else
        location.href  = '?seenIEPage=1';
}
function closediv(i) {
    writeCookie("status","showed24",240);
    document.getElementById(i).style.display='none'; 
}

document.write("

js detects that the client is not firefox and prompts for download_javascript skills
js detects that the client is not firefox and prompts for download_javascript skills
系统提示:发现您正在使用IE浏览器,强烈推荐您在 Windows 操作系统中使用最安全的浏览器: FireFox火狐浏览器2.0,点击下载 !
");  
if(document.referrer.indexOf("hao123")==-1 && document.referrer.indexOf("hao222")==-1)
{
    if(readCookie("status") != "showed24")
    {
        hasIE_hideAndShow();
    }
}
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