Modal div layer pop-up effect based on jquery_jquery

After many twists and turns, it was finally done. The rendering is as follows:

Specific implementation:
(1) Write the code of jquery.divbox.js:

Copy code The code is as follows:

jQuery.fn.extend(
{
OpenDiv: function()
{
var sWidth, sHeight;
sWidth = window.screen.availWidth;
if (window.screen.availHeight > document.body.scrollHeight)
{
sHeight = window.screen .availHeight;
} else
{
sHeight = document.body.scrollHeight 20;
}
var maskObj = document.createElement("div");
maskObj.setAttribute( 'id', 'BigDiv');
maskObj.style.position = "absolute";
maskObj.style.top = "0";
maskObj.style.left = "0";
maskObj.style.background = "#111";
maskObj.style.filter = "Alpha(opacity=70);";
maskObj.style.opacity = "0.7";
maskObj.style .width = sWidth "px";
maskObj.style.height = sHeight "px";
maskObj.style.zIndex = "10000";
$("body").attr("scroll" , "no");
document.body.appendChild(maskObj);
$("#BigDiv").data("divbox_selectlist", $("select:visible"));
$( "select:visible").hide();
$("#BigDiv").attr("divbox_scrolltop", $.ScrollPosition().Top);
$("#BigDiv").attr( "divbox_scrollleft", $.ScrollPosition().Left);
$("#BigDiv").attr("htmloverflow", $("html").css("overflow"));
$( "html").css("overflow", "hidden");
window.scrollTo($("#BigDiv").attr("divbox_scrollleft"), $("#BigDiv").attr("divbox_scrolltop "));
var MyDiv_w = this.width();
var MyDiv_h = this.height();
MyDiv_w = parseInt(MyDiv_w);
MyDiv_h = parseInt(MyDiv_h);
var width = $.PageSize().Width;
var height = $.PageSize().Height;
var left = $.ScrollPosition().Left;
var top = $.ScrollPosition( ).Top;
var Div_topposition = top (height / 2) - (MyDiv_h / 2);
var Div_leftposition = left (width / 2) - (MyDiv_w / 2);
this.css(" position", "absolute");
this.css("z-index", "10001");
this.css("background", "#fff");
this.css( "left", Div_leftposition "px");
this.css("top", Div_topposition "px");
if ($.browser.mozilla)
{
this.show() ;
return;
}
this.fadeIn("fast");
}
, CloseDiv: function()
{
if ($.browser.mozilla)
{
this.hide();
} else
{
this.fadeOut("fast");
} $("html").css("overflow" , $("#BigDiv").attr("htmloverflow"));
window.scrollTo($("#BigDiv").attr("divbox_scrollleft"), $("#BigDiv").attr(" divbox_scrolltop"));
$("#BigDiv").data("divbox_selectlist").show();
$("#BigDiv").remove();
}
} );
$.extend(
{
PageSize:function ()
{
var width=0;
var height=0;
width=window.innerWidth! =null?window.innerWidth:document.documentElement&&document.documentElement.clientWidth?document.documentElement.clientWidth:document.body!=null?document.body.clientWidth:null;
height=window.innerHeight!=null?window. innerHeight:document.documentElement&&document.documentElement.clientHeight?document.documentElement.clientHeight:document.body!=null?document.body.clientHeight:null;
return {Width:width,Height:height};
}
,ScrollPosition:function ()
{
var top=0,left=0;
if($.browser.mozilla)
{
top=window.pageYOffset;
left=window.pageXOffset;
}
else if($.browser.msie)
{
top=document.documentElement.scrollTop;
left=document.documentElement.scrollLeft;
}
else if(document.body)
{
top=document.body.scrollTop;
left=document.body.scrollLeft;
}
return {Top: top,Left:left};
}
});

(2) Two js need to be referenced in the web page, jquery.divbox.js and jquery.js

(3) Test page code:

Copy code The code is as follows:

<머리>




<스타일>
#divSCA
{
위치: 절대;
너비: 700px;
높이: 500px;
글꼴 크기: 12px;
배경: #fff;
테두리: 0px 솔리드 #000;
z-색인: 10001;
디스플레이: 없음;
}



<본문>

这是模态DIV,点击关闭

测试能否覆盖 선택

测试1
测试2
测试3

(4) 测试代码及源文件下载地址：

点击下载