js雙擊復(fù)制支持火狐

    查看效果：js雙擊復(fù)制支持火狐
    火狐js雙擊復(fù)制內(nèi)容代碼如下：
    function copy(copycontent){
    if(window.clipboarddata){ 
    window.clipboarddata.cleardata(); 
    window.clipboarddata.setdata(text, copycontent);
    }else if(navigator.useragent.indexof(opera) != -1){ 
    window.location = copycontent; 
    }else if (window.netscape){ 
    try{ 
    netscape.security.privilegemanager.enableprivilege(universalxpconnect); 
    }catch (e){ 
    alert(您的當(dāng)前瀏覽器設(shè)置已關(guān)閉此功能！請按以下步驟開啟此功能！\n新開一個瀏覽器，在瀏覽器地址欄輸入'about:config'并回車。\n然后找
    到'signed.applets.codebase_principal_support'項，雙擊后設(shè)置為'true'。\n聲明：本功能不會危極您計算機或數(shù)據(jù)的安全！); 
    } 
    var clip = components.classes['@mozilla.org/widget/clipboard;1'].createinstance(components.interfaces.nsiclipboard); 
    if (!clip) return false; 
    var trans = components.classes['@mozilla.org/widget/transferable;1'].createinstance(components.interfaces.nsitransferable); 
    if (!trans) return false; 
    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 = copycontent; 
    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); 
    }
    return true;
    }
    雙擊復(fù)制textarea內(nèi)容，舉例如下：我這里有jquery的引入。
    <script language=javascript src=../js/jquery-1.4.4.min.js></script>
    <script language=javascript>
    $(function(){
     $(textarea[name='other']).dblclick(function(){//雙擊復(fù)制textarea name=other里面的內(nèi)容http://%77%77%77%2e%66網(wǎng)站制作%6f學(xué)習(xí)網(wǎng)%72%61%73%70%2e%63%6e
      if(copy($.trim($(this).val())))alert(復(fù)制成功!);
      });
    });
    </script>