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("很抱歉！由於Firefox瀏覽器設定問題，Firefox使用者若要使用新聞引用的功能 必須先做些設定：\r\n1. 開一個新分頁，在網址列打上 about:configrn2. 用過濾器找到 signed.applets.codebase_principal_support 這個值，用滑鼠點一下，把他改為 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);
    }
}