让AJAX弹出提示信息效果的代码

<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>提示信息框</title><style type="text/css">a{ color:#000; font-size:12px;text-decoration:none}a:hover{ color:#900; text-decoration:underline}body{background:;filter:progid:DXImageTransform.Microsoft.Gradient(gradientType=0,startColorStr=#ffffff,endColorStr=#003366); overflow:hidden}#massage_box{ position:absolute; left:expression((body.clientWidth-350)/2); top:expression((body.clientHeight-200)/2); width:350px; height:200px;filter:dropshadow(color=#666666,offx=3,offy=3,positive=2); z-index:2; visibility:hidden}#mask{ position:absolute; top:0; left:0; width:expression(body.scrollWidth); height:expression(body.scrollHeight); background:#666; filter:ALPHA(opacity=60); z-index:1; visibility:hidden}.massage{border:#036 solid; border-width:1 1 3 1; width:95%; height:95%; background:#fff; color:#036; font-size:12px; line-height:150%}.header{background:#036; height:10%; font-family:Verdana, Arial, Helvetica, sans-serif; font-size:12px; padding:3 5 0 5; color:#fff}</style><script language="javascript">var Obj=document.onmouseup=MUpdocument.onmousemove=MMovefunction MDown(Object){Obj=Object.iddocument.all(Obj).setCapture()pX=event.x-document.all(Obj).style.pixelLeft;pY=event.y-document.all(Obj).style.pixelTop;}function MMove(){if(Obj!=){document.all(Obj).style.left=event.x-pX;document.all(Obj).style.top=event.y-pY;}}function MUp(){if(Obj!=){document.all(Obj).releaseCapture();Obj=;}}</script></head><body><div id="massage_box"><div class="massage"><div class="header" onm ousedown=MDown(massage_box)><div style="display:inline; width:150px; position:absolute">本站提示信息</div><span onClick="massage_box.style.visibility=hidden; mask.style.visibility=hidden" style="float:right; display:inline; cursor:hand">×</span></div><ul style="margin-right:25"><li>本人申明此博客所有文章（包括文章插图）均为原创，如需引用或转载请注明出处。</li><li>欢迎大家对博文中观点留言评述，谢绝无聊人士无素质无观点的灌水漫骂。</li><li>本站已设背景音乐，听音乐盒中收集的音乐时请先到页面底部关闭背景音乐。</li></ul></div></div><div id="mask"></div><span onClick="mask.style.visibility=visible;massage_box.style.visibility=visible" style="cursor:hand"><a href="#">显示提示信息</a></span><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><p>查找更多代码，请访问：<a href="https://www.jb51.net" target="_blank">脚本之家</a></p></body></html>

提示:可以修改后运行.

让AJAX弹出提示信息效果的代码