function copy_clip(mytext){
    if (window.clipboardData)
    {   // IE
        window.clipboardData.setData("Text", mytext);
    }
    else if (window.netscape)
    {   // Netscape, firefox
        // 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;

        // Set string data
        str.data = mytext;
        
        // Make transferable
        var trans = Components.classes["@mozilla.org/widget/transferable;1"].createInstance(Components.interfaces.nsITransferable);
        if (!trans) return false;
        
        // Specify the datatype as text/unicode
        trans.addDataFlavor("text/unicode");
        trans.setTransferData("text/unicode",str,copytext.length * 2);

        // Get clipboard service
        var clipid = Components.interfaces.nsIClipboard;
        var clip = Components.classes["@mozilla.org/widget/clipboard;1"].getService(clipid);
        if (!clip) return false;

        // copy data to the clipboard
        clip.setData(trans,null,clipid.kGlobalClipboard);
    }
    alert("The generated URL is copied to your clipboard: \n\n" + mytext);
    return false
}