一個類似MSN的提示風格的右下腳上浮的DIV—–JavaScript實現

<SCRIPT language="JavaScript"> 
<!-- 
 
/**//* 
 *    訊息構造 
 */ 
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= 150; 
    this.speed    = 20;
    this.step    = 1;
    this.right    = screen.width -1; 
    this.bottom = screen.height;
    this.left    = this.right - this.width;
    this.top    = this.bottom - this.height;
    this.timer    = 0;
    this.pause    = false;
    this.close    = false;
    this.autoHide    = true;
} 
 
/**//* 
 *    隱藏訊息方法 
 */ 
CLASS_MSN_MESSAGE.prototype.hide = function(){ 
    if(this.onunload()){ 

        var offset  = this.height>this.bottom-this.top?this.height:this.bottom-this.top;
        var me  = this; 
 
        if(this.timer>0){  
            window.clearInterval(me.timer); 
        } 
 
        var fun = function(){ 
            if(me.pause==false||me.close){
                var x  = me.left;
                var y  = 0;
                var width = me.width;
                var height = 0;
                if(me.offset>0){
                    height = me.offset;
                }
    
                y  = me.bottom - height;
    
                if(y>=me.bottom){
                    window.clearInterval(me.timer); 
                    me.Pop.hide(); 
                } else {
                    me.offset = me.offset - me.step; 
                }
                me.Pop.show(x,y,width,height);   
            }            
        } 
 
        this.timer = window.setInterval(fun,this.speed)     
    } 
} 
 
/**//* 
 *    訊息卸載事件，可以重寫 
 */ 
CLASS_MSN_MESSAGE.prototype.onunload = function() { 
    return true; 
} 
/**//* 
 *    訊息命令事件，要實現自己的串連，請重寫它 
 * 
 */ 
CLASS_MSN_MESSAGE.prototype.oncommand = function(){ 
var cookieString = new String(document.cookie) var cookieHeader = "NoticeInfo=" var beginPosition = cookieString.indexOf(cookieHeader) if (beginPosition != -1) { var Info=document.all("hidNotice").value; Info=Info.split("/"); var NodeID=Info[3]; //alert(NodeID); //window.open("WebPages/NoticeOfGlob/frmNoticeOfGlob.aspx?Node="+NodeID); window.parent.rbottom.location.href="WebPages/NoticeOfGlob/frmNoticeOfGlob.aspx?Node="+NodeID; } //window.location.href="login.aspx"; ? this.close = true; this.hide();    

} 
 
/**//* 
 *    訊息顯示方法 
 */ 
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:#e6e6fa'>" 
        str += "<TABLE style='BORDER-TOP: #ffffff 1px solid; BORDER-LEFT: #ffffff 1px solid' cellSpacing=0 cellPadding=0 width='100%' bgColor=#e6e6fa 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=關閉 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><FONT color=#ff0000>" + this.message + "</FONT></DIV>"       
        str += "</DIV>" 
        str += "</TD>" 
        str += "</TR>" 
        str += "</TABLE>" 
        str += "</DIV>" 
 
    oPopup.document.body.innerHTML = str;
   
 
    this.offset  = 0;
    var me  = this; 

    oPopup.document.body.onmouseover = function(){me.pause=true;}
    oPopup.document.body.onmouseout = function(){me.pause=false;}

    var fun = function(){ 
        var x  = me.left;
        var y  = 0;
        var width    = me.width;
        var height    = me.height;
 
            if(me.offset>me.height){
                height = me.height;
            } else {
                height = me.offset;
            }
 
        y  = me.bottom - me.offset;
        if(y<=me.top){
            me.timeout--;
            if(me.timeout==0){
                window.clearInterval(me.timer); 
                if(me.autoHide){
                    me.hide();
                }
            }
        } else {
            me.offset = me.offset + me.step;
        }
        me.Pop.show(x,y,width,height);   
 
    } 
 
    this.timer = window.setInterval(fun,this.speed)     
 
    
 
    var btClose = oPopup.document.getElementById("btSysClose"); 
 
    btClose.onclick = function(){ 
        me.close = true;
        me.hide(); 
    } 
 
    //var btCommand = oPopup.document.getElementById("btCommand"); 
    //btCommand.onclick = function()
    //{ 
     // me.oncommand(); 
    //}   
} 
/**//*
** 設定速度方法
**/
CLASS_MSN_MESSAGE.prototype.speed = function(s){
    var t = 20;
    try {
        t = praseInt(s);
    } catch(e){}
    this.speed = t;
}
/**//*
** 設定步長方法
**/
CLASS_MSN_MESSAGE.prototype.step = function(s){
    var t = 1;
    try {
        t = praseInt(s);
    } catch(e){}
    this.step = t;
}
 
CLASS_MSN_MESSAGE.prototype.rect = function(left,right,top,bottom){
    try {
        this.left        = left    !=null?left:this.right-this.width;
        this.right        = right    !=null?right:this.left +this.width;
        this.bottom        = bottom!=null?(bottom>screen.height?screen.height:bottom):screen.height;
        this.top        = top    !=null?top:this.bottom - this.height;
    } catch(e){}
}

 //判斷執行Cookie
 
  window.onload=function getCookie()
  {
  var cookieString = new String(document.cookie)
  var cookieHeader = "NoticeInfo="
  var beginPosition = cookieString.indexOf(cookieHeader)
  if (beginPosition != -1)
   {
   var Info=document.all("hidNotice").value;  
   Info=Info.split("/");   
   var MSG1 = new CLASS_MSN_MESSAGE("001",200,150,Info[1],"發布時間:"+Info[0],"通知概要:"+Info[2]);      
   MSG1.rect(null,null,null,screen.height-50);
   MSG1.speed    = 80;
   MSG1.step    = 5;
   MSG1.show(); 
   }
   else
   {
    return;
   }
  }

 
//--> 
  </SCRIPT>