【www.gdgbn.com--浏览器】

function copyToClipboard(txt) {
  if (window.clipboardData) {
    window.clipboardData.clearData();
    window.clipboardData.setData("text", txt);
  } 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"");
      return;
    }
    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")
  }
}

本文来源：http://www.gdgbn.com/bangongshuma/20967/