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DIV+CSS+JS 变灰弹出层

  作者：bea

浮动层居中的对话框效果演示 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd"> <HTML xml:lang="zn" xmlns="http://www.w3.org/1999/xhtml"> <HEAD> <TITLE>浮动层居中
浮动层居中的对话框效果演示



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd">
<HTML xml:lang="zn" xmlns="http://www.w3.org/1999/xhtml">
<HEAD>
<TITLE>浮动层居中的对话框效果演示</TITLE>
<FCK:META http-equiv=content-type content="application/xhtml+xml; charset=gb2312" />
<STYLE type=text/css>
HTML {
HEIGHT: 100%
}
BODY {
HEIGHT: 100%
}
BODY {
FONT-SIZE: 14px; FONT-FAMILY: Tahoma, Verdana, sans-serif
}
DIV.neat-dialog-cont {
Z-INDEX: 98; BACKGROUND: none transparent scroll repeat 0% 0%; LEFT: 0px; WIDTH: 100%; POSITION: absolute; TOP: 0px; HEIGHT: 100%
}
DIV.neat-dialog-bg {
Z-INDEX: -1; FILTER: alpha(opacity=70); LEFT: 0px; WIDTH: 100%; POSITION: absolute; TOP: 0px; HEIGHT: 100%; BACKGROUND-COLOR: #eee; opacity: 0.7
}
DIV.neat-dialog {
BORDER-RIGHT: #555 1px solid; BORDER-TOP: #555 1px solid; Z-INDEX: 99; MARGIN-LEFT: auto; BORDER-LEFT: #555 1px solid; WIDTH: 30%; MARGIN-RIGHT: auto; BORDER-BOTTOM: #555 1px solid; POSITION: relative; TOP: 25%; BACKGROUND-COLOR: #fff
}
DIV.neat-dialog-title {
PADDING-RIGHT: 0.3em; PADDING-LEFT: 0.3em; FONT-SIZE: 0.8em; PADDING-BOTTOM: 0.1em; MARGIN: 0px; LINE-HEIGHT: 1.2em; PADDING-TOP: 0.1em; BORDER-BOTTOM: #444 1px solid; POSITION: relative
}
IMG.nd-cancel {
RIGHT: 0.2em; POSITION: absolute; TOP: 0.2em
}
DIV.neat-dialog P {
PADDING-RIGHT: 0.2em; PADDING-LEFT: 0.2em; PADDING-BOTTOM: 0.2em; PADDING-TOP: 0.2em; TEXT-ALIGN: center
}
</STYLE>
<SCRIPT type=text/javascript>
function NeatDialog(sHTML, sTitle, bCancel)
{
window.neatDialog = null;
this.elt = null;
if (document.createElement && document.getElementById)
{
var dg = document.createElement("div");
dg.className = "neat-dialog";
if (sTitle)
sHTML = '<div class="neat-dialog-title">'+sTitle+
((bCancel)?
'<img src="x.gif" alt="Cancel" class="nd-cancel" />':'')+
'</div>
' + sHTML;
dg.innerHTML = sHTML;

var dbg = document.createElement("div");
dbg.id = "nd-bdg";
dbg.className = "neat-dialog-bg";

var dgc = document.createElement("div");
dgc.className = "neat-dialog-cont";
dgc.appendChild(dbg);
dgc.appendChild(dg);

//adjust positioning if body has a margin
if (document.body.offsetLeft > 0)
dgc.style.marginLeft = document.body.offsetLeft + "px";

document.body.appendChild(dgc);
if (bCancel) document.getElementById("nd-cancel").onclick = function()
{
window.neatDialog.close();
};
this.elt = dgc;
window.neatDialog = this;
}
}
NeatDialog.prototype.close = function()
{
if (this.elt)
{
this.elt.style.display = "none";
this.elt.parentNode.removeChild(this.elt);
}
window.neatDialog = null;
}

function openDialog()
{

var sHTML = '<p>你现在看到的是一个层窗口，是被JS控制弹出的，<a href="http://"></a>！</p>'+
'<p><button onclick="window.neatDialog.close()">关闭</button></p>';
new NeatDialog(sHTML, "欢迎光临!", false);

}

</SCRIPT>
<BODY>
<H1>浮动层居中的效果</H1>
<BUTTON onclick=openDialog()>点此演示效果</BUTTON>
</BODY></HTML>





[Ctrl+A 全选 注:
如需引入外部Js需刷新才能执行]



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