jquery ui dialog|popup 弹出窗口层

/***************************/
//@Author: Adrian "yEnS" Mato Gondelle
//@website: http://www.cnblogs.com/wangdetian168
//@email: wangdetian168@163.com
/***************************/
document.write('<div );

//loading popup with jQuery magic!
function loadPopup(){
//loads popup only if it is disabled
if(popupStatus==0){
  $("#backgroundPopup").css({
   "opacity": "0.7"
  });
  $("#backgroundPopup").fadeIn("slow");
  $("#popupContact").fadeIn("slow");
  popupStatus = 1;
}
}

//disabling popup with jQuery magic!
function disablePopup(){
//disables popup only if it is enabled
if(popupStatus==1){
  $("#backgroundPopup").fadeOut("slow");
  $("#popupContact").fadeOut("slow");
  popupStatus = 0;
}
}

//centering popup
function centerPopup(){
//request data for centering
var windowWidth = document.documentElement.clientWidth;
var windowHeight = document.documentElement.clientHeight;
var popupHeight = $("#popupContact").height();
var popupWidth = $("#popupContact").width();
//centering
$("#popupContact").css({
  "position": "absolute",
  "top": windowHeight/2-popupHeight/2,
  "left": windowWidth/2-popupWidth/2
});
//only need force for IE6

$("#backgroundPopup").css({
  "height": windowHeight
});

}

//CONTROLLING EVENTS IN jQuery
$(document).ready(function(){
//弹出层
popupModal.show=function(e)
{
centerPopup();
  //load popup
  loadPopup();
}
//是否显示标题
if(popupModal.isUseTitle){
$("#idModalTitle").html(popupModal.idModalTitle);
//alert($("#idModalTitle").attr("align"));
$("#idModalTitle").attr("align",popupModal.align);
//alert(popupModal.align);alert($("#idModalTitle").attr("align"));
}
else{
  $("#idModalTitle").hide();
}
//设置窗口大小
document.getElementById("popupContact").style.width=popupModal.modalWidth;
document.getElementById("popupContact").style.height=popupModal.modalHeight;
$("#idContentArea").html(document.getElementById(popupModal.idLoadHtml).innerHTML);
//LOADING POPUP
//Click the button event!
$("#button").click(function(){
  //centering with css
  centerPopup();
  //load popup
  loadPopup();
});

//CLOSING POPUP
//Click the x event!

for(var i=0;i<idCloses.length;i++)
{
     $("#"+idCloses[i]).click(function(){
    disablePopup();
   });
}

//Click out event!
$("#backgroundPopup").click(function(){
  disablePopup();
});
//Press Escape event!
$(document).keypress(function(e){
  if(e.keyCode==27 && popupStatus==1){
   disablePopup();
  }
});

});

genneral.css

html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em,
font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody,
tfoot, thead, tr, th, td {
border:0pt none;
font-family:inherit;
font-size:100%;
font-style:inherit;
font-weight:inherit;
margin:0pt;
padding:0pt;
vertical-align:baseline;
}
body{
background:#fff none repeat scroll 0%;
line-height:1;
font-size: 12px;
font-family:Tahoma,arial,sans-serif;
margin:0pt;
height:100%;
}
table {
border-collapse:separate;
border-spacing:0pt;
}
caption, th, td {
font-weight:normal;
text-align:left;
}
blockquote:before, blockquote:after, q:before, q:after {
content:"";
}
blockquote, q {
quotes:"" "";
}
a{
cursor: pointer;
text-decoration:none;
}
br.both{
clear:both;
}
#backgroundPopup{
display:none;
position:fixed;
_position:absolute; /* hack for internet explorer 6*/
height:100%;
width:100%;
top:0;
left:0;
background:#000000;
border:1px solid #cecece;
z-index:1;
}
#popupContact{

}
#popupContact h1{

color:#6FA5FD;
font-size:22px;
font-weight:700;
border-bottom:1px dotted #D3D3D3;
padding-bottom:2px;
margin-bottom:20px;
}
#popupContactClose{
font-size:14px;
line-height:14px;
right:6px;
top:6px;
position:absolute;
color:#6fa5fd;
font-weight:700;
display:block;
}
#button{
text-align:center;
margin:100px;
}

测试页面

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Jquery教程演示:JavaScript弹出窗口DIV层效果代码--代码吾爱 </title>

<script type="text/javascript" src="../ui-images/js/jquery-1.4.2.min.js"></script>

    </script>
</head>
<body>
<center>
  <p><img/ src="logo.gif" alt="点击进入代码吾爱"/></p>
  <p><img/ src="banner.bmp" alt="点击进入代码吾爱"/></p>
  <div />


  </p>
</div>

</body>
</html>