仿msn弹出

<script language="javascript" type="text/javascript">

   
        var oPopup;

        var iOriginTop = 50; 

        var iPopTop = iOriginTop;

        var iWidth = 241;

        var iHeight = 172;

        var iTimer = 0;

        var iStep = 10;

        var iSpeed = 50;

        var bPause = false;        

        //初始化

        function IniPopup()

        {   

            //

            oPopup = window.createPopup();

            //

            var winstr="<table  id="tbMsg" style="BORDER-TOP: #ffffff 1px solid; BORDER-LEFT: #ffffff 1px solid"  bgColor="#cfdef4" width="" + iWidth +"" height="" + iHeight + "" border="0" cellpadding="2" cellspacing="2">";

            winstr+="<tr ><td height="30" align="left"  style='FONT-WEIGHT: bold; FONT-SIZE: 12px; COLOR: #003399; MARGIN-RIGHT: 4px'  id="tdCaption"></td><td align="right"><SPAN title=关闭 style='FONT-WEIGHT: bold; FONT-SIZE: 12px; CURSOR: hand; COLOR: red; MARGIN-RIGHT: 4px' id='btClose'>×</SPAN></td></tr>";

            winstr+="<tr><td align="center" colspan="2">";

            winstr+="<table width="90%" height="110" border="0" cellpadding="0" cellspacing="0">";

            winstr+="<tr><td valign="top" style="font-size:12px; color: #003399; face: Tahoma;PADDING-RIGHT: 1px;PADDING-BOTTOM: 1px;" id="tdContent"></td></tr>";

            winstr+="</table>";

            winstr+="</td></tr></table>"; 

            //

            oPopup.document.body.innerHTML = winstr;  

            oPopup.document.body.onmouseover = function(){bPause = true;}

            oPopup.document.body.onmouseout = function(){bPause = false;}   

            //

            oPopup.document.body.onclick = function()

            {

                var src  = oPopup.document.parentWindow.event.srcElement; 

                var sid = src.getAttribute("id");

                if(sid == "btClose" )

                {

                    HideMsg(); 

                }

                else

                {

                    //显示弹出窗口中的联机地址

                    var url = src.getAttribute("href");

                    if(url!=null)

                    {

                        window.open(url);

                        HideMsg(); 

                    }

                }

            }

        }

        //弹出消息框

        function PopMsg(captionstr,msgstr)

        {          

            oPopup.document.getElementById("tdCaption").innerHTML = captionstr;

            oPopup.document.getElementById("tdContent").innerHTML = msgstr;

            iTimer = window.setInterval("PopupShow()",iSpeed);

        }

        //渐次显示...

        function PopupShow()

        {

            if(bPause) return;

            

            if(iPopTop>1720)

            {

                HideMsg();

                return;

            }

            else if(iPopTop > 1520 && iPopTop<1720)

            {

                oPopup.show(screen.width - iWidth - 10,screen.height,iWidth,1720 - iPopTop);

            }

            else if(iPopTop > 1500 && iPopTop<1520)

            {

                oPopup.show(screen.width - iWidth - 10,screen.height + (iPopTop - 1720),iWidth,iHeight);

            }

            else if(iPopTop<(iHeight - 10))

            {

                oPopup.show(screen.width - iWidth - 10,screen.height,iWidth,iPopTop);

            }

            else if(iPopTop<(iWidth - 20))

            {

                oPopup.show(screen.width - iWidth - 10,screen.height - iPopTop,iWidth,iHeight);

            }

            iPopTop += iStep;

        }

        //隐藏消息

        function HideMsg()

        {

            if(oPopup!=null)  

            {

                window.clearInterval(iTimer);

                oPopup.hide();

                iPopTop = iOriginTop;

                bPause = false;

            }

        }

        //为调用使用

        function ShowMsg()

        {

            PopMsg("您有2条新的短消息","<li>新邮件<li><a href=http://news.sina.com.cn>新工作</a>");

        }

        IniPopup();

        //ShowMsg();

        window.setInterval("ShowMsg()",10000);

        

    //-->

    </script>