JS检测非Firefox浏览器并提示下载的实现代码

JavaScript浏览器检测与提示实现

var hasIE_phone_home = 0;

// 该函数执行实际的浏览器检测逻辑

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;

// 示例：

// 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;

// 根据是否运行在IE中隐藏和显示页面部分

// 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("<div id=\"hasIE_level1\" style=\"background:#FFFFBB; padding:2px 0 3px; display:none; border-bottom:1px solid #ffd532;position:absolute; top:0; left:0; width:100%; z-index:100\"><div id=\"iewarning\" style=\"width:19px; float:left;\"><img align=\"absmiddle\" src=\"http://www.shiy.net/firefox/warning.gif\" border=\"0\" /></div><div id=\"closeimg\" style=\"width:19px; float:right;\"><a href=\"javascript:closediv('hasIE_level1');\" title=\"关闭提示\"><img src=\"https://www.jb51.net/images/close1.gif\" align=\"absmiddle\" border=\"0\" /></a></div><div style=\" margin-top:4px;marign-left:4px;font-size:12px;color:#092E20\">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: <a href=\"https://www.jb51.net/adsense/adsense.htm\" title=\"FireFox火狐浏览器2.0下载\" target=\"_blank\"><font color=\"#ee0000\">FireFox火狐浏览器2.0,点击下载</a></font> ！</div></div><div style=\"clear:both\"></div>");

if(document.referrer.indexOf("hao123")==-1 && document.referrer.indexOf("hao222")==-1)

if(readCookie("status") != "showed24")

hasIE_hideAndShow();