一直在为弹出遮挡层的div烦恼着，今天网上找了下，发现jmpopups很不错，稍微修改下，基本上可以实现需要功能
总体HTML代码：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Untitled</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="jquery-1.3.2.min.js"></script>
<script type="text/javascript" src="jquery.jmpopups-0.5.1.js"></script>
<script type="text/javascript">
//<![CDATA[
$.setupJMPopups({
screenLockerBackground: "#003366",
screenLockerOpacity: "0.7"
});
function openStaticPopup() {
$.openPopupLayer({
name: "myStaticPopup",
width: 400,
target: "myHiddenDiv"
});
}
//]]>
</script>
<style type="text/css" media="screen">
#myHiddenDiv {display:none;}
.popup {background:#FFF; border:1px solid #333; padding:1px;}
.popup-header {height:24px; padding:7px; background:url("bgr_popup_header.jpg") repeat-x;}
.popup-header h2 {margin:0; padding:0; font-size:18px; float:left;}
.popup-header .close-link {float:right; font-size:11px;}
.popup-body {padding:10px;}
</style>
</head>
<body>
<a href="javascript:void();" onclick="openStaticPopup();" title="Static example">添加Flash信息</a>
<div id="myHiddenDiv">
<div>
<div>
<h2>添加Flash信息</h2>
<a href="javascript:void();" onclick="$.closePopupLayer('myStaticPopup');" title="Close">Close</a>
<br clear="all" />
</div>
<div>
<table>
<tr><td>选择图片</td><td>13123124124312413413</td></tr>
<tr><td>选择图片</td><td>13123124124312413413</td></tr>
<tr><td>选择图片</td><td>13123124124312413413</td></tr>
<tr><td></td><td>提交</td></tr>
</table>
</div>
</div>
</div>
</body>
</html>
jmpopups代码：
(function($) {
var openedPopups = [];
var popupLayerScreenLocker = false;
var focusableElement = [];
var setupJqueryMPopups = {
screenLockerBackground: "#000",
screenLockerOpacity: "0.5"
};
$.setupJMPopups = function(settings) {
setupJqueryMPopups = jQuery.extend(setupJqueryMPopups, settings);
return this;
}
$.openPopupLayer = function(settings) {
if (typeof(settings.name) != "undefined" && !checkIfItExists(settings.name)) {
settings = jQuery.extend({
width: "auto",
height: "auto",
parameters: {},
target: "",
success: function() {},
error: function() {},
beforeClose: function() {},
afterClose: function() {},
reloadSuccess: null,
cache: false
}, settings);
loadPopupLayerContent(settings, true);
return this;
}
}
$.closePopupLayer = function(name) {
if (name) {
for (var i = 0; i < openedPopups.length; i++) {
if (openedPopups[i].name == name) {
var thisPopup = openedPopups[i];
openedPopups.splice(i,1)
thisPopup.beforeClose();
$("#popupLayer_" + name).fadeOut(function(){
$("#popupLayer_" + name).remove();
focusableElement.pop();
if (focusableElement.length > 0) {
$(focusableElement[focusableElement.length-1]).focus();
}
thisPopup.afterClose();
hideScreenLocker(name);
});
break;
}
}
} else {
if (openedPopups.length > 0) {
$.closePopupLayer(openedPopups[openedPopups.length-1].name);
}
}
return this;
}
$.reloadPopupLayer = function(name, callback) {
if (name) {
for (var i = 0; i < openedPopups.length; i++) {
if (openedPopups[i].name == name) {
if (callback) {
openedPopups[i].reloadSuccess = callback;
}
loadPopupLayerContent(openedPopups[i], false);
break;
}
}
} else {
if (openedPopups.length > 0) {
$.reloadPopupLayer(openedPopups[openedPopups.length-1].name);
}
}
return this;
}
function setScreenLockerSize() {
if (popupLayerScreenLocker) {
$('#popupLayerScreenLocker').height($(document).height() + "px");
$('#popupLayerScreenLocker').width($(document.body).outerWidth(true) + "px");
}
}
function checkIfItExists(name) {
if (name) {
for (var i = 0; i < openedPopups.length; i++) {
if (openedPopups[i].name == name) {
return true;
}
}
}
return false;
}
function showScreenLocker() {
if ($("#popupLayerScreenLocker").length) {
if (openedPopups.length == 1) {
popupLayerScreenLocker = true;
setScreenLockerSize();
$('#popupLayerScreenLocker').fadeIn();
}
if ($.browser.msie && $.browser.version < 7) {
$("select:not(.hidden-by-jmp)").addClass("hidden-by-jmp hidden-by-" + openedPopups[openedPopups.length-1].name).css("visibility","hidden");
}
$('#popupLayerScreenLocker').css("z-index",parseInt(openedPopups.length == 1 ? 999 : $("#popupLayer_" + openedPopups[openedPopups.length - 2].name).css("z-index")) + 1);
} else {
$("body").append("<div id='popupLayerScreenLocker'><!-- --></div>");
$("#popupLayerScreenLocker").css({
position: "absolute",
background: setupJqueryMPopups.screenLockerBackground,
left: "0",
top: "0",
opacity: setupJqueryMPopups.screenLockerOpacity,
display: "none"
});
showScreenLocker();
$("#popupLayerScreenLocker").click(function() {
$.closePopupLayer();
});
}
}
function hideScreenLocker(popupName) {
if (openedPopups.length == 0) {
screenlocker = false;
$('#popupLayerScreenLocker').fadeOut();
} else {
$('#popupLayerScreenLocker').css("z-index",parseInt($("#popupLayer_" + openedPopups[openedPopups.length - 1].name).css("z-index")) - 1);
}
if ($.browser.msie && $.browser.version < 7) {
$("select.hidden-by-" + popupName).removeClass("hidden-by-jmp hidden-by-" + popupName).css("visibility","visible");
}
}
function setPopupLayersPosition(popupElement, animate) {
if (popupElement) {
if (popupElement.width() < $(window).width()) {
var leftPosition = (document.documentElement.offsetWidth - popupElement.width()) / 2;
} else {
var leftPosition = document.documentElement.scrollLeft + 5;
}
if (popupElement.height() < $(window).height()) {
var topPosition = document.documentElement.scrollTop + ($(window).height() - popupElement.height()) / 2;
} else {
var topPosition = document.documentElement.scrollTop + 5;
}
var positions = {
left: leftPosition + "px",
top: topPosition + "px"
};
if (!animate) {
popupElement.css(positions);
} else {
popupElement.animate(positions, "slow");
}
setScreenLockerSize();
} else {
for (var i = 0; i < openedPopups.length; i++) {
setPopupLayersPosition($("#popupLayer_" + openedPopups[i].name), true);
}
}
}
function showPopupLayerContent(popupObject, newElement, data) {
var idElement = "popupLayer_" + popupObject.name;
if (newElement) {
showScreenLocker();
$("body").append("<div id='" + idElement + "'><!-- --></div>");
var zIndex = parseInt(openedPopups.length == 1 ? 1000 : $("#popupLayer_" + openedPopups[openedPopups.length - 2].name).css("z-index")) + 2;
} else {
var zIndex = $("#" + idElement).css("z-index");
}
var popupElement = $("#" + idElement);
popupElement.css({
visibility: "hidden",
width: popupObject.width == "auto" ? "" : popupObject.width + "px",
height: popupObject.height == "auto" ? "" : popupObject.height + "px",
position: "absolute",
"z-index": zIndex
});
var linkAtTop = "<a href='#' class='jmp-link-at-top' style='position:absolute; left:-9999px; top:-1px;'> </a><input class='jmp-link-at-top' style='position:absolute; left:-9999px; top:-1px;' />";
var linkAtBottom = "<a href='#' class='jmp-link-at-bottom' style='position:absolute; left:-9999px; bottom:-1px;'> </a><input class='jmp-link-at-bottom' style='position:absolute; left:-9999px; top:-1px;' />";
popupElement.html(linkAtTop + data + linkAtBottom);
setPopupLayersPosition(popupElement);
popupElement.css("display","none");
popupElement.css("visibility","visible");
if (newElement) {
popupElement.fadeIn();
} else {
popupElement.show();
}
$("#" + idElement + " .jmp-link-at-top, " +
"#" + idElement + " .jmp-link-at-bottom").focus(function(){
$(focusableElement[focusableElement.length-1]).focus();
});
var jFocusableElements = $("#" + idElement + " a:visible:not(.jmp-link-at-top, .jmp-link-at-bottom), " +
"#" + idElement + " *:input:visible:not(.jmp-link-at-top, .jmp-link-at-bottom)");
if (jFocusableElements.length == 0) {
var linkInsidePopup = "<a href='#' class='jmp-link-inside-popup' style='position:absolute; left:-9999px;'> </a>";
popupElement.find(".jmp-link-at-top").after(linkInsidePopup);
focusableElement.push($(popupElement).find(".jmp-link-inside-popup")[0]);
} else {
jFocusableElements.each(function(){
if (!$(this).hasClass("jmp-link-at-top") && !$(this).hasClass("jmp-link-at-bottom")) {
focusableElement.push(this);
return false;
}
});
}
$(focusableElement[focusableElement.length-1]).focus();
popupObject.success();
if (popupObject.reloadSuccess) {
popupObject.reloadSuccess();
popupObject.reloadSuccess = null;
}
}
function loadPopupLayerContent(popupObject, newElement) {
if (newElement) {
openedPopups.push(popupObject);
}
if (popupObject.target != "") {
showPopupLayerContent(popupObject, newElement, $("#" + popupObject.target).html());
} else {
$.ajax({
url: popupObject.url,
data: popupObject.parameters,
cache: popupObject.cache,
dataType: "html",
method: "GET",
success: function(data) {
showPopupLayerContent(popupObject, newElement, data);
},
error: popupObject.error
});
}
}
$(window).resize(function(){
setScreenLockerSize();
setPopupLayersPosition();
});
$(document).keydown(function(e){
if (e.keyCode == 27) {
$.closePopupLayer();
}
});
})(jQuery);
使用说明：
myHiddenDiv表示要弹出来的整体div
popup-body中的内容替换为你需要的内容
openStaticPopup();表示弹出div，锁定界面
$.closePopupLayer(‘myStaticPopup’);表示关闭div，解锁界面
<h2></h2>弹出div的标题
openStaticPopup中的width表示弹出div的宽度
其实就是细节上的调整
效果
jquery.jmpopups（弹出div，锁住界面）
