/**************************************************
* * JavaScript cross Service
* * 2009-2-23
* **************************************************
* * msn:danxinju@hotmail.com
* * author:淡新举
***************************************************/

var cross = {};

/*@资源地址*/
cross.url = null;

/*@数据对象*/
cross.data = null;

/*@脚本对象*/
cross.script = null;

/*@创建对象*/
cross.create = function(){
	cross.script = document.createElement("script");
	cross.script.type = "text/javascript";
	document.getElementsByTagName("head")[0].appendChild(cross.script);
};

/*@打开连接*/
cross.request = function(url ,CallBack ,charset){
	cross.url = url;
	cross.script.setAttribute("charset" ,charset);
	cross.script.src = cross.url;	

	if (document.all)
	{
		cross.script.onreadystatechange = function(){
			 if (cross.script.readyState == "loaded" || cross.script.readyState == "complete") 
			 {
				CallBack(cross.data);
			 }
		};
	}
	else
	{
		cross.script.onload = function (){ 
			CallBack(cross.data);
		};
	}
};

/*@添加监听*/
cross.addEventHandler = function(target, eventType, handler){
		if (target.addEventListener)
		{
			target.addEventListener(eventType, handler, false);
		}
		else if (target.attachEvent)
		{
			target.attachEvent("on" + eventType, handler);
		}
		else
		{
			target["on" + eventType] = handler;
		}
};

cross.create();


/**************************************************
* * 文字无缝滚动
* * 2008-10-10
* **************************************************
* * msn:danxinju@hotmail.com
* * author:淡新举
***************************************************/

var Class = {
  create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
  }
}

Object.extend = function(destination, source) {
    for (var property in source) {
        destination[property] = source[property];
    }
    return destination;
}


i8.Scroller = Class.create();
i8.Scroller.prototype = {
  initialize: function(idScroller, idScrollMid, options) {
    var oScroll = this, oScroller = document.getElementById(idScroller), oScrollMid = document.getElementById(idScrollMid);
    
    this.SetOptions(options);
    this.Scroller = oScroller;    
    this.Speed = this.options.Speed;
    this.timer = null;
    this.Pause = 0;
    
    //用于上下滚动
    this.heightScroller = parseInt(oScroller.style.height) || oScroller.offsetHeight;
    this.heightList = oScrollMid.offsetHeight;
    
    //用于左右滚动
    this.widthScroller = parseInt(oScroller.style.width) || oScroller.offsetWidth;
    this.widthList = oScrollMid.offsetWidth;
    
    //js取不到css设置的height和width
    
    oScroller.style.overflow = "hidden";
    oScrollMid.appendChild(oScrollMid.cloneNode(true));
   
    //方向设置
    switch (this.options.Side.toLowerCase()) {
        case "right" :
            if(this.widthList <= this.widthScroller) return;
            this.Scroll = this.ScrollLeftRight;
            this.side = -1;
            break;
        case "left" :
            if(this.widthList <= this.widthScroller) return;
            this.Scroll = this.ScrollLeftRight;
            this.side = 1;
            break;
        case "down" :
            if(this.heightList <= this.heightScroller) return;
            this.Scroll = this.ScrollUpDown;
            this.side = -1;
            break;
        case "up" :
        default :
            if(this.heightList <= this.heightScroller) return;
            this.Scroll = this.ScrollUpDown;
            this.side = 1;
    }
    addEventHandler(oScroller, "mouseover", function() { oScroll.Stop(); });
    addEventHandler(oScroller, "mouseout", function() { oScroll.Start(); });
    
    this.Start();
  },
  //设置默认属性
  SetOptions: function(options) {
    this.options = {//默认值
      Step:            1,//每次变化的px量
      Speed:        20,//速度(越大越慢)
      Side:            "up",//滚动方向:"up"是上，"down"是下，"left"是左，"right"是右
      PauseHeight:    0,//隔多高停一次
      PauseWidth:    0,//隔多宽停一次
      PauseStep:    1000//停顿时间(PauseHeight或PauseWidth大于0该参数才有效)
    };
    Object.extend(this.options, options || {});
  },  
  //上下滚动
  ScrollUpDown: function() {
    this.Scroller.scrollTop = this.GetScroll(this.Scroller.scrollTop, this.heightScroller, this.heightList, this.options.PauseHeight);
    
    var oScroll = this;
    this.timer = window.setTimeout(function(){ oScroll.Scroll(); }, this.Speed);
  },
  //左右滚动
  ScrollLeftRight: function() {
    //document.getElementById("test").innerHTML+=iStep+",";
    //注意:scrollLeft超过1400会自动变回1400 注意长度
    this.Scroller.scrollLeft = this.GetScroll(this.Scroller.scrollLeft, this.widthScroller, this.widthList, this.options.PauseWidth);
    
    var oScroll = this;
    this.timer = window.setTimeout(function(){ oScroll.Scroll(); }, this.Speed);
  },
  //获取设置滚动数据
  GetScroll: function(iScroll, iScroller, iList, iPause) {
    var oScroll = this, iStep = this.options.Step * this.side;
    
    if(this.side > 0){
        if(iScroll >= (iList * 2 - iScroller)){ iScroll -= iList; }
    } else {
        if(iScroll <= 0){ iScroll += iList; }
    }
    
    this.Speed = this.options.Speed;
    if(iPause > 0){
        if(Math.abs(this.Pause) >= iPause){
            this.Speed = this.options.PauseStep; this.Pause = iStep = 0;
        } else {
            this.Pause += iStep;
        }
    }
    
    return (iScroll + iStep);
  },
  //开始
  Start: function() {
    this.Scroll();
  },
  //停止
  Stop: function() {
    clearTimeout(this.timer);
  }
};


/**************************************************
* * 调用滚动部分
* * 2008-10-23
* **************************************************
* * msn:danxinju@hotmail.com
* * author:淡新举
***************************************************/
i8.oToday = function(){
	var sb = new StringBuilder();
	sb.add("<div id=\"Scroller\" style=\"height:14px;\"><div id=\"ScrollMid\"><ul>");

	cross.request(i8.oToday.location  ,function(data){
			
		var texts = data.messages;
		for (var i=0;i<texts.length ;i++ )
		{
			if (texts[i]["url"] == "")
			{
				
			}
			else
			{
				//sb.add(" <li><a href=\""+ texts[i]["url"] +"\">"+ texts[i]["text"] +"</a></li>");
			}
			sb.add(" <li>"+ texts[i]["text"] +"</li>");
		}

		sb.add("</ul></div></div>");
		if (document.getElementById("oTodayPanel") == null)
		{
			alert("没有找到元素oTodayPanel!");
			return;
		}
		document.getElementById("oTodayPanel").innerHTML = sb.toString();
		new i8.Scroller("Scroller", "ScrollMid",{ Side:"up", PauseHeight:14 ,PauseStep:3000 });

	} ,"utf-8");
};

i8.oToday.location = "http://www.i8gaming.com/services/getOToday.php";
addEventHandler(window ,"load" ,i8.oToday);