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 id="backgroundPopup"></div> <div id="popupContact" style="display:none;position:fixed;_position:absolute;height:384px;width:408px;background:#FFFFFF;border:2px solid #cecece;z-index:2;padding:12px;font-size:13px;"> <a id="popupContactClose">x</a><h1 id="idModalTitle" align="right"></h1><p id="idContentArea"></p></div>');
document.write("<link rel='stylesheet' type='text/css' href='general.css'>");
//SETTING UP OUR POPUP
//0 means disabled; 1 means enabled;
var popupStatus = 0;
var idCloses=new Array("popupContactClose","buttonClose");

var popupModal='{idLoadHtml:"popupContact1",idModalTitle:"弹出窗口测试",isUseTitle:true,align:"center",modalWidth:"408px";modalHeight:"384px",show:function(){ centerPopup();//load popup loadPopup();}}';
//popupModal={idLoadHtml:"popupContact1",idModalTitle:"弹出窗口测试",isUseTitle:true};

//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 src="popup.js" type="text/javascript"></script>
    <script type="text/javascript">
 
 idCloses.push("idput");
 popupModal={idLoadHtml:"popupContact1",idModalTitle:"弹出窗口测试",isUseTitle:true,align:"center",modalWidth:"800px",modalHeight:"300px"};

 
    </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 id=""><input type="button" onclick="popupModal.show()"  value="点击这里查看效果" /></div>
  <p></p>
  <p>教程:JS弹出窗口DIV层效果代码 </a></p>
 </center>
 <div id="popupContact1" style="display:none">
 
  <p id="contactAreasss">
   这就是我们创建的漂亮DIV弹窗效果。可以看到jQuery实在是非常强大，我们仅需少量的CSS和JavaScript代码即可完成这一效果。<br/><br/>
   我们可以在这个弹窗之中放置一个登录框、注册表单、重要事件提醒等等。
   <br/><br/>
   要关闭这个窗口，请点击右上方的X按钮或点击弹窗外的背景或按下键盘上的ESC键。
            <input type="button" id="buttonClose" value="关闭" />
       
   
  </p>
 </div>

</body>
</html>