弹窗

css

.zhuti
{
	position:absolute;
	z-index:3;
	font-size:14px;
	border-radius:5px;
	box-shadow:0 0 5px white;
	overflow:hidden;
	color:#333;
}
.title
{
	background-color:#CCC;
	vertical-align:middle;
	height:25px;
	100%;
	line-height:35px;
	text-indent:1em;
}
.close{
	float:right;
	35px;
	height:35px;
	font-weight:bold;
	line-height:35px;
	vertical-align:middle;
	color:white;
	font-size:18px;
	}
.close:hover
{
	cursor:pointer;
}
.content
{
	text-indent:1em;
	padding-top:10px;
}
.btnx
{
	height:30px;
	100%;
	text-indent:1em;
}
.btn
{
	height:28px;
	80px;
	float:left;
	margin-left:20px;
	color:#333;
}
#zz
{
	100%;
	height:100%;
	opacity:0.15;
	display:none;
	background-color:#ccc;
	z-index:2;
	position:absolute;
	top:0px;
	left:0px;
}

　　js

// 每个弹窗的标识
var x =0;
var idzt = new Array();
var Window = function(config){
	
	//ID不重复
	idzt[x] = "zhuti"+x;  //弹窗ID
	
	//初始化，接收参数
	this.config = {
		width : config.width || 300, //宽度
		height : config.height || 200, //高度
		buttons : config.buttons || '', //默认无按钮
		title : config.title || '标题', //标题
		content : config.content || '内容', //内容
		isMask : config.isMask == false?false:config.isMask || true, //是否遮罩
		isDrag : config.isDrag == false?false:config.isDrag || true, //是否移动
		};
	
	//加载弹出窗口
	var w = ($(window).width()-this.config.width)/2;
	var h = ($(window).height()-this.config.height)/2;
	
	var nr = "<div class='zhuti' id='"+idzt[x]+"' bs='"+x+"' style='"+this.config.width+"px; height:"+this.config.height+"px; background-color:white; left:"+w+"px; top:"+h+"px;'></div>";
	$("body").append(nr);
	
	//加载弹窗标题
	var content ="<div id='title"+x+"' class='title' bs='"+x+"'>"+this.config.title+"<div id='close"+x+"' class='close' bs='"+x+"'>×</div></div>";
	//加载弹窗内容
	var nrh = this.config.height - 75;
	content = content+"<div id='content"+x+"' bs='"+x+"' class='content' style='100%; height:"+nrh+"px;'>"+this.config.content+"</div>";
	//加载按钮
	content = content+"<div id='btnx"+x+"' bs='"+x+"' class='btnx'>"+this.config.buttons+"</div>";
	
	//将标题、内容及按钮添加进窗口
	$('#'+idzt[x]).html(content);
	
	//创建遮罩层
	if(this.config.isMask)
	{
		var zz = "<div id='zz'></div>";
		$("body").append(zz);
		$("#zz").css('display','block');
	}
	
	//最大最小限制，以免移动到页面外
	var maxX = $(window).width()-this.config.width;
	var maxY = $(window).height()-this.config.height;
	var minX = 0,
		minY = 0;
	
	//窗口移动
	if(this.config.isDrag)
	{
		//鼠标移动弹出窗
		$(".title").bind("mousedown",function(e){
				
				var n = this.getAttribute("bs"); //取标识
				
				//使选中的到最上层
				$(".zhuti").css("z-index",3);
				$('#'+idzt[n]).css("z-index",4);
				
				//取初始坐标
				var endX = 0, //移动后X坐标
					endY = 0, //移动后Y坐标
					startX = parseInt($('#'+idzt[n]).css("left")), //弹出层的初始X坐标
					startY = parseInt($('#'+idzt[n]).css("top")), //弹出层的初始Y坐标
					downX = e.clientX, //鼠标按下时，鼠标的X坐标
					downY = e.clientY; //鼠标按下时，鼠标的Y坐标
					
				//绑定鼠标移动事件
				$("body").bind("mousemove",function(es){
					
					endX = es.clientX - downX + startX; //X坐标移动
					endY = es.clientY - downY + startY; //Y坐标移动
					
					//最大最小限制
					if(endX > maxX)
					{
						endX = maxX;
					} else if(endX < 0)
					{
						endX = 0;
					}
					if(endY > maxY)
					{
						endY = maxY;
					} else if(endY < 0)
					{
						endY = 0;
					}
					
					$('#'+idzt[n]).css("top",endY+"px");
					$('#'+idzt[n]).css("left",endX+"px");
					
					window.getSelection ? window.getSelection().removeAllRanges():document.selection.empty(); //取消选中文本
					
					});
			});
		//鼠标按键抬起，释放移动事件
		$("body").bind("mouseup",function(){
			
				$("body").unbind("mousemove");
			
			});
	}
	
	//关闭窗口
	$(".close").click(function(){
		
			var m = this.getAttribute("bs"); //找标识
			$('#'+idzt[m]).remove(); //移除弹窗
			$('#zz').remove(); //移除遮罩 
		
		})
		
		x++;  //标识增加
		
}