// JavaScript Document
//去左空格;
function ltrim(s){
    return s.replace( /^\s*/, "");
}
//去右空格;
function rtrim(s){
    return s.replace( /\s*$/, "");
}
//去左右空格;
function trim(s){
    return rtrim(ltrim(s));
}
function DrawImage(ImgD,w,h){
var image=new Image();
image.src=ImgD.src;
if(image.width>0 && image.height>0){
flag=true;
if(image.width/image.height>= w/h){
if(image.width>w){
ImgD.width=w;
ImgD.height=(image.height*w)/image.width;
}else{
ImgD.width=image.width;
ImgD.height=image.height;
}
//ImgD.alt=image.width+"×"+image.height;
}
else{
if(image.height>h){
ImgD.height=h;
ImgD.width=(image.width*h)/image.height;
}else{
ImgD.width=image.width;
ImgD.height=image.height;
}
//ImgD.alt=image.width+"×"+image.height;
}
}
}
function nTabs(tabObj,obj,tabnum){
			for(i=0; i <=tabnum; i++)
			{
				if (tabObj+"_Title"+i == obj.id)
				{
					if(i==0)
					{
						document.getElementById(tabObj+"_Title"+i).className = "active"; 
					}else if(i==tabnum)
					{
						document.getElementById(tabObj+"_Title"+i).className = "activeR"; 
					}else
					{
						document.getElementById(tabObj+"_Title"+i).className = "activeC"; 
					}
					document.getElementById(tabObj+"_Content"+i).style.display = "block";
				}else{
					if(i==0||i==tabnum)
					{
						document.getElementById(tabObj+"_Title"+i).className = "normal"; 
					}else
					{
						document.getElementById(tabObj+"_Title"+i).className = "normalC"; 
					}
					document.getElementById(tabObj+"_Content"+i).style.display = "none";
				}
			}
		}
		
var $=function(obj){return document.getElementById(obj);};

String.prototype.format = function(){
 var tmpStr = this;
 var iLen = arguments.length;
 for(var i=0;i<iLen;i++){
  tmpStr = tmpStr.replace(new RegExp("\\{" + i + "\\}", "g"), arguments[i]);
 }
 return tmpStr;
}
function $() {
  var elements = new Array();
  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);

    if (arguments.length == 1) 
      return element;

    elements.push(element);
  }
  return elements;
}
function IMarquee(){
 function throwError(){alert("接口未实现：" + arguments[0]);}
 this.Scroll = function(){throwError("Scroll");}
 this.Clone = function(){throwError("Clone");}
}
function AbstractMarquee(){
 IMarquee.apply(this);
 var ref = this;
 var timer = null;
 var container = null;
 var indexs = ["ContainerID", "Delay", "Amount", "Width", "Height"];
 this.Amount = 1;
 this.Delay = 30;
 this.Width = 0;
 this.Height = 0;
 this.ContainerID = "";
 this.Start = function(){
  clearTimer();
  timer = setInterval(ref.Scroll, ref.Delay);
 }
 this.Stop = function(){
  clearTimer();
 }
 this.Pause = function(){
  clearTimer();
 }
 this.Init = function(){
  container = $(this.ContainerID);
  if(container == null) {alert("无法找到id为{0}的对象,初始化失败。".format(this.ContainerID));return;};
  container.style.overflow = "hidden";
  if(this.Width > 0) container.style.width = this.Width + "px";
  if(this.Height > 0) container.style.height = this.Height + "px";
  this.Clone();
  this.AttachEvent();
  this.Start();
 }
 this.AttachEvent = function(){
  container.onmouseover = ref.Pause;
  container.onmouseout = ref.Start;
 }
 function clearTimer(){
  if(timer != null)clearInterval(timer);
 }
 function _Marquee(){
  var max = Math.min(indexs.length, arguments.length);
  for(var i=0;i<max;i++)
   this[indexs[i]] = arguments[i];
 }
 _Marquee.apply(this, arguments);
}
function MarqueeUp(){
 AbstractMarquee.apply(this, arguments);
 var ref = this;
 var container = $(this.ContainerID);
 this.Clone = function(){
  container.innerHTML = '<div>{0}</div><div>{0}</div>'.format(container.innerHTML);
 }
 this.Scroll = function(){
  with(container){
   if(scrollTop >= lastChild.offsetTop) scrollTop -= firstChild.offsetHeight;
   else scrollTop += ref.Amount;
  }
 }
}
function MarqueeLeft(){
 AbstractMarquee.apply(this, arguments);
 var ref = this;
 var container = $(this.ContainerID);
 this.Clone = function(){
  container.innerHTML = '<table cellspacing="0" cellpadding="0" border="0"><tr><td>{0}</td><td>{0}</td></tr></table>'.format(container.innerHTML);
 }
 this.Scroll = function(){
  with(container){
   if(scrollLeft >= firstChild.rows[0].cells[1].offsetLeft) scrollLeft -= firstChild.rows[0].cells[0].offsetWidth;
   else scrollLeft += ref.Amount;
  }
 }
}
var Marquee = {
 Type : {
  UP : function(){return new MarqueeUp(arguments[0]);},
  DOWN : function(){return new MarqueeDown(arguments[0]);},


  LEFT : function(){return new MarqueeLeft(arguments[0]);},
  RIGHT : function(){return new MarqueeRight(arguments[0]);}
 },
 newInstance : function(type, container){
  return this.Type[type.toUpperCase()].call(this, container);
 }
}