本文实例讲述了jQuery实现的模拟弹出窗口功能。分享给大家供大家参考，具体如下：
//初始化文档
$(document).ready();
//----------------弹出DIV仿模态窗口开始----------------
var divW; //DIV宽度
var divH; //DIV高度
var clientH; //浏览器高度
var clientW; //浏览器宽度
var divTitle; //DIV标题
var pageUrl; //DIV中加载的页面
var div_X; //DIV横坐标
var div_Y; //DIV纵坐标
function DivWindowOpen(divWidth,divHeight,title,url){
divW = divWidth; //DIV宽度
divH = divHeight; //DIV高度
divTitle = title; //DIV高度
pageUrl = url; //DIV中加载的页面UR
lockScreen(); //锁定背景
divOpen();
$("#divTitle").append(divTitle);
$("#divContent").load(pageUrl);
//交换X图片
$("#x").hover(
function(){
$(this).attr("src","images/Close-2.gif");
},
function(){
$(this).attr("src","images/Close-1.gif");
}
);
//关闭DIV窗口
$("#x").click(
function(){
clearDivWindow();
clearLockScreen();
}
);
}
//返回弹出的DIV的坐标
function divOpen(){
var minTop = 80; //弹出的DIV记顶部的最小距离
if($("#divWindow").length == 0){
clientH = $(window).height(); //浏览器高度
clientW = $(window).width(); //浏览器宽度
div_X = (clientW - divW)/2; //DIV横坐标
div_Y = (clientH - divH)/2; //DIV纵坐标
div_X += window.document.documentElement.scrollLeft; //DIV显示的实际横坐标
div_Y += window.document.documentElement.scrollTop; //DIV显示的实际纵坐标
if(div_Y < minTop){
div_Y = minTop;
}
$("body").append("<div id='divWindow'><div id='divTitle'><img src='images/Close-1.gif' id='x' /></div><div id='divContent'>载入中</div></div>"); //增加DIV
//divWindow的样式
$("#divWindow").css("position","absolute");
$("#divWindow").css("z-index","200");
$("#divWindow").css("left",(div_X + "px")); //定位DIV的横坐标
$("#divWindow").css("top",(div_Y + "px")); //定位DIV的纵坐标
$("#divWindow").css("opacity","0.9");
$("#divWindow").width(divW);
$("#divWindow").height(divH);
$("#divWindow").css("background-color","#FFFFFF");
$("#divWindow").css("border","solid 1px #333333");
//divTitle的样式
$("#divTitle").css("height","20px");
$("#divTitle").css("line-height","20px");
$("#divTitle").css("background-color","#333333");
$("#divTitle").css("padding","3px 5px 1px 5px");
$("#divTitle").css("color","#FFFFFF");
$("#divTitle").css("font-weight","bold");
//x的样式
$("#x").css("float","right");
$("#x").css("cursor","pointer");
