function copyToClipboard(txt) {??
???? if(window.clipboardData) {??
?
???????????? window.clipboardData.clearData();??
???????????? window.clipboardData.setData("Text", txt);??
??? alert(window.clipboardData.getData("Text"));
???? } else if(navigator.userAgent.indexOf("Opera") != -1) {??
????????? window.location = txt;??
???? } else if (window.netscape) {??
????????? try {??
?????????????? netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");??
????????? } catch (e) {??
?????????????? alert("被浏览器拒绝！\n请在浏览器地址栏输入'about:config'并回车\n然后将 'signed.applets.codebase_principal_support'设置为'true'");??
????????? }??
????????? var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);??
????????? if (!clip)??
?????????????? return;??
????????? var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);??
????????? if (!trans)??
?????????????? return;??
????????? trans.addDataFlavor('text/unicode');??
????????? var str = new Object();??
????????? var len = new Object();??
????????? var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);??
????????? var copytext = txt;??
????????? str.data = copytext;??
????????? trans.setTransferData("text/unicode",str,copytext.length*2);??
????????? var clipid = Components.interfaces.nsIClipboard;??
????????? if (!clip)??
?????????????? return false;??
????????? clip.setData(trans,null,clipid.kGlobalClipboard);??
????????? alert("复制成 功！")??
???? }??
}?