源代码：用层DIV模拟的类似C/S模式下的小窗口(可以拖动，展开关闭)

本文介绍了一种使用JScript实现的可拖动、可最小化的网页窗口效果，适用于WEB开发中模拟C/S应用的小窗口功能。代码简洁易懂，通过设置CSS样式及事件处理实现了窗口的拖动与状态变化。

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WEB开发时常用的代码，可以模拟 C/S模式下的小窗口，可以拖动，展开关闭（最小化），用JScript 写的，调用简单，一看就明白。

< html >

< head >

< title > 用层DIV模拟的小窗口(可以拖动，展开关闭) </ title >

< meta http - equiv = " Content-Type " content = " text/html; charset=gb2312 " >

< style type = ' text/css ' >

<!--

body {font-size:12px;}

a:visited {text-decoration:none;color:slategray;}

a:hover {text-decoration:underline;color:slategray;}

a:link {text-decoration:none;color:slategray;}

-->

</ style >

< script language = " JScript " >

<!--

// 可以打包为js文件;

var x0 = 0 ,y0 = 0 ,x1 = 0 ,y1 = 0 ;

var offx = 6 ,offy = 6 ;

var moveable = false ;

var hover = ' orange ' ,normal = ' #336699 ' ; // color;

var index = 10000 ; // z-index;

// 开始拖动;

function startDrag(obj)

{

if(event.button==1)

{

//锁定标题栏;

obj.setCapture();

//定义对象;

var win = obj.parentNode;

var sha = win.nextSibling;

//记录鼠标和层位置;

x0 = event.clientX;

y0 = event.clientY;

x1 = parseInt(win.style.left);

y1 = parseInt(win.style.top);

//记录颜色;

normal = obj.style.backgroundColor;

//改变风格;

obj.style.backgroundColor = hover;

win.style.borderColor = hover;

obj.nextSibling.style.color = hover;

sha.style.left = x1 + offx;

sha.style.top = y1 + offy;

moveable = true;

}

// 拖动;

function drag(obj)

{

if(moveable)

{

var win = obj.parentNode;

var sha = win.nextSibling;

win.style.left = x1 + event.clientX - x0;

win.style.top = y1 + event.clientY - y0;

sha.style.left = parseInt(win.style.left) + offx;

sha.style.top = parseInt(win.style.top) + offy;

}

// 停止拖动;

function stopDrag(obj)

{

if(moveable)

{

var win = obj.parentNode;

var sha = win.nextSibling;

var msg = obj.nextSibling;

win.style.borderColor = normal;

obj.style.backgroundColor = normal;

msg.style.color = normal;

sha.style.left = obj.parentNode.style.left;

sha.style.top = obj.parentNode.style.top;

obj.releaseCapture();

moveable = false;

}

// 获得焦点;

function getFocus(obj)

{

if(obj.style.zIndex!=index)

{

index = index + 2;

var idx = index;

obj.style.zIndex=idx;

obj.nextSibling.style.zIndex=idx-1;

}

// 最小化;

function min(obj)

{

var win = obj.parentNode.parentNode;

var sha = win.nextSibling;

var tit = obj.parentNode;

var msg = tit.nextSibling;

var flg = msg.style.display=="none";

if(flg)

{

win.style.height = parseInt(msg.style.height) + parseInt(tit.style.height) + 2*2;

sha.style.height = win.style.height;

msg.style.display = "block";

obj.innerHTML = "0";

}

else

{

win.style.height = parseInt(tit.style.height) + 2*2;

sha.style.height = win.style.height;

obj.innerHTML = "2";

msg.style.display = "none";

}

// 创建一个对象;

function xWin(id,w,h,l,t,tit,msg)

{

index = index+2;

this.id = id;

this.width = w;

this.height = h;

this.left = l;

this.top = t;

this.zIndex = index;

this.title = tit;

this.message = msg;

this.obj = null;

this.bulid = bulid;

this.bulid();

}

// 初始化;

function bulid()

{

var str = ""

+ "<div id=xMsg" + this.id + " "

+ "style='"

+ "z-index:" + this.zIndex + ";"

+ "width:" + this.width + ";"

+ "height:" + this.height + ";"

+ "left:" + this.left + ";"

+ "top:" + this.top + ";"

+ "background-color:" + normal + ";"

+ "color:" + normal + ";"

+ "font-size:8pt;"

+ "font-family:Tahoma;"

+ "position:absolute;"

+ "cursor:default;"

+ "border:2px solid " + normal + ";"

+ "' "

+ "οnmοusedοwn='getFocus(this)'>"

+ "<div "

+ "style='"

+ "background-color:" + normal + ";"

+ "width:" + (this.width-2*2) + ";"

+ "height:20;"

+ "color:white;"

+ "' "

+ "οnmοusedοwn='startDrag(this)' "

+ "οnmοuseup='stopDrag(this)' "

+ "οnmοusemοve='drag(this)' "

+ "οndblclick='min(this.childNodes[1])'"

+ ">"

+ "<span style='width:" + (this.width-2*12-4) + ";padding-left:3px;'>" + this.title + "</span>"

+ "<span style='width:12;border-width:0px;color:white;font-family:webdings;' οnclick='min(this)'>0</span>"

+ "<span style='width:12;border-width:0px;color:white;font-family:webdings;' οnclick='ShowHide(""+this.id+"",null)'>r</span>"

+ "</div>"

+ "<div style='"

+ "width:100%;"

+ "height:" + (this.height-20-4) + ";"

+ "background-color:white;"

+ "line-height:14px;"

+ "word-break:break-all;"

+ "padding:3px;"

+ "'>" + this.message + "</div>"

+ "</div>"

+ "<div id=xMsg" + this.id + "bg style='"

+ "width:" + this.width + ";"

+ "height:" + this.height + ";"

+ "top:" + this.top + ";"

+ "left:" + this.left + ";"

+ "z-index:" + (this.zIndex-1) + ";"

+ "position:absolute;"

+ "background-color:black;"

+ "filter:alpha(opacity=40);"

+ "'></div>";

document.body.insertAdjacentHTML("beforeEnd",str);

}

// 显示隐藏窗口

function ShowHide(id,dis)

{

var bdisplay = (dis==null)?((document.getElementById("xMsg"+id).style.display=="")?"none":""):dis

document.getElementById("xMsg"+id).style.display = bdisplay;

document.getElementById("xMsg"+id+"bg").style.display = bdisplay;

}

// -->

</ script >

< script language = ' JScript ' >

<!--

function initialize()

{

var a = new xWin("1",160,200,200,200,"窗口1","~~~~~ <br> 第一个窗口<br><br>");

var b = new xWin("2",240,200,100,100,"窗口2","第二个窗口，可以最小化或关闭窗口<br><a href=http://blog.youkuaiyun.com/whqcfp target=_blank>http://blog.youkuaiyun.com/whqcfp</a><br>我的 BLOG：<br><a href=http://blog.youkuaiyun.com/whqcfp target=_blank>http://blog.youkuaiyun.com/whqcfp</a><br><br>...");