/*   * 描述：判斷瀏覽器信息   * 編寫：LittleQiang_w   * 日期：2016.1.5   * 版本：V1.1   */   //判斷當(dāng)前瀏覽類型  function BrowserType()  {    var userAgent = navigator.userAgent; //取得瀏覽器的userAgent字符串    var isOpera = userAgent.indexOf("Opera") > -1; //判斷是否Opera瀏覽器    var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判斷是否IE瀏覽器    var isEdge = userAgent.indexOf("Windows NT 6.1; Trident/7.0;") > -1 && !isIE; //判斷是否IE的Edge瀏覽器    var isFF = userAgent.indexOf("Firefox") > -1; //判斷是否Firefox瀏覽器    var isSafari = userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") == -1; //判斷是否Safari瀏覽器    var isChrome = userAgent.indexOf("Chrome") > -1 && userAgent.indexOf("Safari") > -1; //判斷Chrome瀏覽器     if (isIE)     {       var reIE = new RegExp("MSIE (//d+//.//d+);");       reIE.test(userAgent);       var fIEVersion = parseFloat(RegExp["$1"]);       if(fIEVersion == 7)       { return "IE7";}       else if(fIEVersion == 8)       { return "IE8";}       else if(fIEVersion == 9)       { return "IE9";}       else if(fIEVersion == 10)       { return "IE10";}       else if(fIEVersion == 11)       { return "IE11";}       else       { return "0"}//IE版本過低     }//isIE end          if (isFF) { return "FF";}     if (isOpera) { return "Opera";}     if (isSafari) { return "Safari";}     if (isChrome) { return "Chrome";}     if (isEdge) { return "Edge";}   }//myBrowser() end      //判斷是否是IE瀏覽器   function isIE()   {    var userAgent = navigator.userAgent; //取得瀏覽器的userAgent字符串    var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判斷是否IE瀏覽器    if(isIE)    {      return "1";    }    else    {      return "-1";    }   }         //判斷是否是IE瀏覽器，包括Edge瀏覽器   function IEVersion()   {    var userAgent = navigator.userAgent; //取得瀏覽器的userAgent字符串    var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判斷是否IE瀏覽器 var isEdge = userAgent.indexOf("Windows NT 6.1; Trident/7.0;") > -1 && !isIE; //判斷是否IE的Edge瀏覽器    if(isIE)    {       var reIE = new RegExp("MSIE (//d+//.//d+);");       reIE.test(userAgent);       var fIEVersion = parseFloat(RegExp["$1"]);       if(fIEVersion == 7)       { return "IE7";}       else if(fIEVersion == 8)       { return "IE8";}       else if(fIEVersion == 9)       { return "IE9";}       else if(fIEVersion == 10)       { return "IE10";}       else if(fIEVersion == 11)       { return "IE11";}       else       { return "0"}//IE版本過低    } else if(isEdge) {   return "Edge"; }    else    {      return "-1";//非IE    }   }