ajax弹窗插件

// 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=‘width:"+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=‘width: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

}