MSN消息提示类

<script language="JavaScript">  
<!--  
  
/*  
**    ==================================================================================================  
**    类名：CLASS_MSN_MESSAGE  
**    功能：提供类似MSN消息框  
**    示例：  
    ---------------------------------------------------------------------------------------------------  
  
            var MSG = new CLASS_MSN_MESSAGE("aa",200,120,"短消息提示：","您有1封消息","今天请我吃饭哈");  
                MSG.show();  
  
    ---------------------------------------------------------------------------------------------------  
**    作者：ttyp  
**    邮件：ttyp@21cn.com  
**    日期：2005-2-1  
**    ==================================================================================================  
**/  
  
  
/*  
 *    消息构造  
 */  
function CLASS_MSN_MESSAGE(id,width,height,caption,title,message,target,action)  
{  
    this.id     = id;  
    this.title  = title;  
    this.caption= caption;  
    this.message= message;  
    this.target = target;  
    this.action = action;  
    this.width  = width?width:200;  
    this.height = height?height:120;  
    this.timeout= 3000;  
    this.speed  = 20; 
    this.step   = 1; 
 
    this.left   = 0; 
    this.right  = screen.availWidth -1;  
    this.top    = 0; 
    this.bottom = screen.availHeight; 
    this.autoHideTimeOut = 0;
}  
  
/*  
 *    隐藏消息方法  
 */  
CLASS_MSN_MESSAGE.prototype.hide = function()  
{  
    if(this.onunload())      
    {  
        this.Pop.hide();  
        if(this.timer)  
        {  
            window.clearInterval(this.timer);  
        }  
    }  
}  
  
/*  
 *    消息卸载事件，可以重写  
 */  
CLASS_MSN_MESSAGE.prototype.onunload = function()  
{  
    return true;  
}  
/*  
 *    消息命令事件，要实现自己的连接，请重写它  
 *  
 */  
CLASS_MSN_MESSAGE.prototype.oncommand = function()  
{  
    alert(this.message);  
    this.hide();  
}  
  
/*  
 *    消息显示方法  
 */  
CLASS_MSN_MESSAGE.prototype.show = function()  
{  
    var oPopup = window.createPopup(); //IE5.5+  
  
    this.Pop = oPopup;  
  
    var w = this.width;  
    var h = this.height;  
  
    var str = "<DIV style='BORDER-RIGHT: #455690 1px solid; BORDER-TOP: #a6b4cf 1px solid; Z-INDEX: 99999; LEFT: 0px; BORDER-LEFT: #a6b4cf 1px solid; WIDTH: " + w + "px; BORDER-BOTTOM: #455690 1px solid; POSITION: absolute; TOP: 0px; HEIGHT: " + h + "px; BACKGROUND-COLOR: #c9d3f3'>"  
        str += "<TABLE style='BORDER-TOP: #ffffff 1px solid; BORDER-LEFT: #ffffff 1px solid' cellSpacing=0 cellPadding=0 width='100%' bgColor=#cfdef4 border=0>"  
        str += "<TR>"  
        str += "<TD style='FONT-SIZE: 12px;COLOR: #0f2c8c' width=30 height=24></TD>"  
        str += "<TD style='PADDING-LEFT: 4px; FONT-WEIGHT: normal; FONT-SIZE: 12px; COLOR: #1f336b; PADDING-TOP: 4px' vAlign=center width='100%'>" + this.caption + "</TD>"  
        str += "<TD style='PADDING-RIGHT: 2px; PADDING-TOP: 2px' vAlign=center align=right width=19>"  
        str += "<SPAN title=关闭 style='FONT-WEIGHT: bold; FONT-SIZE: 12px; CURSOR: hand; COLOR: red; MARGIN-RIGHT: 4px' id='btSysClose' >×</SPAN></TD>"  
        str += "</TR>"  
        str += "<TR>"  
        str += "<TD style='PADDING-RIGHT: 1px;PADDING-BOTTOM: 1px' colSpan=3 height=" + (h-28) + ">"  
        str += "<DIV style='BORDER-RIGHT: #b9c9ef 1px solid; PADDING-RIGHT: 8px; BORDER-TOP: #728eb8 1px solid; PADDING-LEFT: 8px; FONT-SIZE: 12px; PADDING-BOTTOM: 8px; BORDER-LEFT: #728eb8 1px solid; WIDTH: 100%; COLOR: #1f336b; PADDING-TOP: 8px; BORDER-BOTTOM: #b9c9ef 1px solid; HEIGHT: 100%'>" + this.title + "<BR><BR>"  
        str += "<DIV style='WORD-BREAK: break-all' align=left><A href='javascript:void(0)' hidefocus=true id='btCommand'><FONT color=#ff0000>" + this.message + "</FONT></A></DIV>"  
        str += "</DIV>"  
        str += "</TD>"  
        str += "</TR>"  
        str += "</TABLE>"  
        str += "</DIV>"  
  
    oPopup.document.body.innerHTML = str;  
  
    var docWidth    = this.right;  
    var docHeight   = this.bottom-h;  
    var offset      = screen.height - screen.availHeight;  
 
    var me          = this;  
    var timer;  
 
    var fun = function()  
    {  
        oPopup.show(docWidth-w, docHeight + offset, w, h);    
        if(offset <= 0)  
        {  
            window.clearInterval(timer);  
            if(me.autoHideTimeOut>0)
            {
                window.setTimeout(function(){me.hide()},me.autoHideTimeOut);
            }
        }  
        offset = offset - me.step;  
  
    }  
 
    if(typeof(this.speed)!="number"||this.speed<=0)
    {
        this.speed = 20;
    }
 
    timer = window.setInterval(fun,this.speed)      
  
     
  
    var btClose = oPopup.document.getElementById("btSysClose");  
  
    btClose.onclick = function()  
    {  
        me.hide();  
    }  
  
    var btCommand = oPopup.document.getElementById("btCommand");  
    btCommand.onclick = function()  
    {  
        me.oncommand();  
    }  
  
    this.timer = timer;  
  
}  
  
CLASS_MSN_MESSAGE.prototype.rect = function(left,right,top,bottom) 
{ 
    try 
    { 
        this.left   = left    ?left    :0; 
        this.right  = right    ?right    :screen.availWidth -1; 
        this.top    = top    ?top    :0; 
        this.bottom = bottom?bottom    :screen.availHeight; 
    } 
    catch(e) 
    {} 
} 
 
var msg1 = new CLASS_MSN_MESSAGE("aa",200,120,"短消息提示：","您有1封消息","今天请我吃饭哈");  
    msg1.speed = 20;
    msg1.autoHideTimeOut = 2000;
    msg1.show();  
 
//同时两个有闪烁，只能用层代替了，不过层不跨框架 
//var MSG2 = new CLASS_MSN_MESSAGE("aa",200,120,"短消息提示：","您有2封消息","好的啊");  
//      MSG2.rect(0,null,0,screen.availHeight-120); 
//    MSG2.show();  
 
//-->  
</script>