clipboard2.js

//http://www.experts-exchange.com/Web/Web_Languages/JavaScript/Q_20233392.html
function CopyPlusSelect(FData) {
      var dataVal = eval('document.'+FData);
      dataVal.focus();
      dataVal.select();
      var copyText = dataVal.value;
      if (window.clipboardData) { // IE send-to-clipboard method.
            window.clipboardData.setData('Text', copyText);
            
      } else if (window.netscape) {
            // You have to sign the code to enable this or allow the action in about:config by changing user_pref("signed.applets.codebase_principal_support", true);
            netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
            
            // Store support string in an object.
            var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
            if (!str) return false;
            str.data=copyText;
            
            // Make transferable.
            var trans = Components.classes["@mozilla.org/widget/transferable;1"].createInstance(Components.interfaces.nsITransferable);
            if (!trans) return false;
            
            // Specify what datatypes we want to obtain, which is text in this case.
            trans.addDataFlavor("text/unicode");
            trans.setTransferData("text/unicode",str,copyText.length*2);
            
            var clipid=Components.interfaces.nsIClipboard;
            var clip = Components.classes["@mozilla.org/widget/clipboard;1"].getService(clipid);
            if (!clip) return false;
            
            clip.setData(trans,null,clipid.kGlobalClipboard);
      }
}