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转一个alert

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 楼主| 发表于 2013-1-29 07:41:35 | 显示全部楼层 |阅读模式
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="gb2312" ><head>    <meta http-equiv="content-type" content="text/html; charset=gb2312" />    <meta name="author" content="Smiling Dolphin" />    <meta name="keywords" content="design, css, cascading, style, sheets, xhtml, graphic design, w3c, web standards, visual, display, java, javascript, c++, php, jsp, asp, py, pl" />    <meta name="description" content="my favorites language." />    <meta name="robots" content="all" />    <title>Dolphin Document</title>    <style type="text/css" title="currentStyle" media="screen">        body,p{            margin:0px;            padding:0px;        }    </style></head><body><input type="button" value="显示Alert"  /><textarea>这里显示文章</textarea><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><p>abc</p><script language="javascript" type="text/javascript">window.alert = function(txt){    var shield = document.createElement("DIV");    shield.id = "shield";    shield.style.position = "absolute";    shield.style.left = "0px";    shield.style.top = "0px";    shield.style.width = "100%";    shield.style.height = document.body.scrollHeight+"px";    shield.style.background = "#333";    shield.style.textAlign = "center";    shield.style.zIndex = "10000";    shield.style.filter = "alpha(opacity=0)";    var alertFram = document.createElement("DIV");    alertFram.id="alertFram";    alertFram.style.position = "absolute";    alertFram.style.left = "50%";    alertFram.style.top = "50%";    alertFram.style.marginLeft = "-225px";    alertFram.style.marginTop = "-75px";    alertFram.style.width = "450px";    alertFram.style.height = "150px";    alertFram.style.background = "#ccc";    alertFram.style.textAlign = "center";    alertFram.style.lineHeight = "150px";    alertFram.style.zIndex = "10001";    strHtml  = "<ul style=\"list-style:none;margin:0px;padding:0px;width:100%\">\n";    strHtml += "    <li style=\"background:#DD828D;text-align:left;padding-left:20px;font-size:14px;font-weight:bold;height:25px;line-height:25px;border:1px solid #F9CADE;\">[系统提示]</li>\n";    strHtml += "    <li style=\"background:#fff;text-align:center;font-size:12px;height:120px;line-height:120px;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;\">"+txt+"</li>\n";    strHtml += "    <li style=\"background:#FDEEF4;text-align:center;font-weight:bold;height:25px;line-height:25px; border:1px solid #F9CADE;\"><input type=\"button\" value=\"关 闭\" onclick=\"doOk()\" /></li>\n";    strHtml += "</ul>\n";    alertFram.innerHTML = strHtml;    document.body.appendChild(alertFram);    document.body.appendChild(shield);    var c = 0;    this.doAlpha = function(){        if (c++ > 20){clearInterval(ad);return 0;}        shield.style.filter = "alpha(opacity="+c+");";    }    var ad = setInterval("doAlpha()",5);    this.doOk = function(){        window.close();    }    alertFram.focus();    document.body.onselectstart = function(){return false;};}</script></body></html> 
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