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(qǐng)按以下步驟開啟此功能！\n新開一個(gè)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(xiàng)，雙擊后設(shè)置為'true'。\n聲明：本功能不會(huì)危極您計(jì)算機(jī)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>