兼容IE和Firefox的、读取本地文件JS代码

兼容IE和Firefox的、读取本地文件JS代码，作者没有给出实例，因此只有部分代码。

<script type="text/javascript">
function read(file) {
if(typeof window.ActiveXObject != 'undefined') {
var content = "";
try {
var fso = new ActiveXObject("Scripting.FileSystemObject");
var reader = fso.openTextFile(file, 1);
while(!reader.AtEndofStream) {
content += reader.readline();
content += "n";
}
// close the reader
reader.close();
}
catch (e) {
alert("Internet Explore read local file error: n" + e);
}
// VeryHuo.Com
return content;
}
else if(document.implementation && document.implementation.createDocument) {
var content = ""
try {
netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
var lf = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
lf.initWithPath(file);
if (lf.exists() == false) {
alert("File does not exist");
}

var fis = Components.classes["@mozilla.org/network/file-input-stream;1"].createInstance(Components.interfaces.nsIFileInputStream);
fis.init(lf, 0x01, 00004, null);
var sis = Components.classes["@mozilla.org/scriptableinputstream;1"].createInstance(Components.interfaces.nsIScriptableInputStream);
sis.init(fis);
var converter = Components.classes["@mozilla.org/intl/scriptableunicodeconverter"].createInstance(Components.interfaces.nsIScriptableUnicodeConverter);
converter.charset = "UTF-8";
content = converter.ConvertToUnicode(sis.read(sis.available()));
}
catch (e) {
alert("Mozilla Firefox read local file error: n" + e);
}

return content;
}
}
</script>

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