function alertWin(title, msg, w, h) {


    var titleheight = "20px"; // 提示窗口标题高度

    var bordercolor = "#acd9fc"; // 提示窗口的边框颜色

    var titlecolor = "#000000"; // 提示窗口的标题颜色

    var titlebgcolor = "#acd9fc"; // 提示窗口的标题背景色

    var bgcolor = "#FFFFFF"; // 提示内容的背景色

    var iWidth = document.documentElement.clientWidth;

    var iHeight = document.documentElement.clientHeight;

    var bgObj = document.createElement("div");

    bgObj.style.cssText = "position:absolute;left:0px;top:0px;width:" + iWidth + "px;height:" + Math.max(document.body.clientHeight, iHeight) + "px;filter:Alpha(Opacity=30);opacity:0.3;background-color:#000000;z-index:101;";

    document.body.appendChild(bgObj);

    var msgObj = document.createElement("div");

    msgObj.style.cssText = "position:absolute;font:11px '宋体';top:" + (iHeight - h) / 2 + "px;left:" + (iWidth - w) / 2 + "px;width:" + w + "px;height:" + h + "px;text-align:center;border:1px solid " + bordercolor + ";background-color:" + bgcolor + ";padding:1px;line-height:22px;z-index:102;";

    document.body.appendChild(msgObj);

    var table = document.createElement("table");

    msgObj.appendChild(table);

    table.style.cssText = "margin:0px;border:0px;padding:0px;";

    table.cellSpacing = 0;

    var tr = table.insertRow(-1);

    var titleBar = tr.insertCell(-1);

    titleBar.style.cssText = "width:100%;height:" + titleheight + "px;text-align:left;padding:3px;margin:0px;font:bold 13px '宋体';color:" + titlecolor + ";border:1px solid " + bordercolor + ";cursor:move;background-color:" + titlebgcolor;

    titleBar.style.paddingLeft = "10px";

    titleBar.innerHTML = title;

    var moveX = 0;

    var moveY = 0;

    var moveTop = 0;

    var moveLeft = 0;

    var moveable = false;

    var docMouseMoveEvent = document.onmousemove;

    var docMouseUpEvent = document.onmouseup;

    titleBar.onmousedown = function() {

        var evt = getEvent();

        moveable = true;

        moveX = evt.clientX;

        moveY = evt.clientY;

        moveTop = parseInt(msgObj.style.top);

        moveLeft = parseInt(msgObj.style.left);



        document.onmousemove = function() {

            if (moveable) {

                var evt = getEvent();

                var x = moveLeft + evt.clientX - moveX;

                var y = moveTop + evt.clientY - moveY;
		
                if (x > 0 && (x + w < iWidth) && y > 0 && (y + h < iHeight)) {

                    msgObj.style.left = 200 + "px";

                    msgObj.style.top = 200 + "px";

                }

            }

        };

        document.onmouseup = function() {

            if (moveable) {

                document.onmousemove = docMouseMoveEvent;

                document.onmouseup = docMouseUpEvent;

                moveable = false;

                moveX = 0;

                moveY = 0;

                moveTop = 0;

                moveLeft = 0;

            }

        };

    }

    var closeBtn = tr.insertCell(-1);

    closeBtn.style.cssText = "cursor:pointer; padding:2px;background-color:" + titlebgcolor;

    closeBtn.innerHTML = "<span style='font-size:15pt; color:" + titlecolor + ";'>×</span>";

    closeBtn.onclick = function() {

        document.body.removeChild(bgObj);

        document.body.removeChild(msgObj);

    }

    var msgBox = table.insertRow(-1).insertCell(-1);

    msgBox.style.cssText = "font:10pt '宋体';";

    msgBox.colSpan = 2;

    msgBox.innerHTML = msg;
 var evt = getEvent();

                var x = moveLeft + evt.clientX - moveX;

                var y = moveTop + evt.clientY - moveY;
		
	          

                    msgObj.style.left = x+ "px";

                    msgObj.style.top = y+ "px";


    // 获得事件Event对象，用于兼容IE和FireFox

    function getEvent() {

        return window.event || arguments.callee.caller.arguments[0];

    }

}