js+Css实现的一个简单对话框
<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:e-xpression((body.clientWidth-350)/2); top:e-xpression((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:e-xpression(body.scrollWidth); height:e-xpression(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>
??? <!--實(shí)現(xiàn)層移動(dòng)-->
??? <script language="javascript">
??????? var Obj = ''
??????? document.onmouseup = MUp
??????? document.onmousemove = MMove
??????? function MDown(Object) {
??????????? Obj = Object.id
??????????? document.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" οnmοusedοwn="MDown(massage_box)">
??????????????? <div style="display: inline; width: 150px; position: absolute">
??????????????????? 本站提示信息
??????????????? </div>
??????????????? <span οnclick="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（包括文章插圖）均為原創(chuàng)，如需引用或轉(zhuǎn)載請注明出處。 </li>
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??????? </div>
??? </div>
??? <div id="mask">
??? </div>
??? <span οnclick="mask.style.visibility='visible';massage_box.style.visibility='visible'"
??????? style="cursor: hand"><a href="#">顯示提示信息</a></span>
???
??? bottom here
</body>
</html>
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