$(function(){    $("p").click(function(){        var Url=$("span").text();        copyToClipboard(Url);     });    });    function copyToClipboard(maintext){      if (window.clipboardData){        window.clipboardData.setData("Text", maintext);        }else if (window.netscape){          try{            netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");        }catch(e){            alert("该浏览器不支持一键复制！n请手工复制文本框链接地址～");        }        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=maintext;        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);      }      alert("以下内容已经复制到剪贴板:" + maintext);    }