原来有样式，但是要用在线QQ功能，太麻烦，有没有简单点的，那位大侠帮忙下
document.writeln("");
document.writeln("<a href=\"http:\/\/sighttp.\/cgi-bin\/check?sigkey=ad8c849bf0dc5f3f49d2b708416abe23176914afc0f3206af79485f52f2e14f1\";
                 target=_blank; onclick=\"var tempSrc=\'http:\/\/sighttp.\/wpa.js?rantime=\'+Math.random()+\'
                 &sigkey=ad8c849bf0dc5f3f49d2b708416abe23176914afc0f3206af79485f52f2e14f1\'; var oldscript=document.getElementById(\'testJs\');
                 var newscript=document.createElement(\'script\');newscript.setAttribute(\'type\',\'text\/javascript\');
                 newscript.setAttribute(\'id\', \'testJs\');newscript.setAttribute(\'src\',tempSrc);if(oldscript == null){document.body.appendChild(newscript);
                 }else{oldscript.parentNode.replaceChild(newscript, oldscript);}return false;\">天长地久客服1<\/a>");