// JScript 文件


function miaovAddEvent(oEle, sEventName, fnHandler)
{
 if(oEle.attachEvent)
 {
  oEle.attachEvent('on'+sEventName, fnHandler);
 }
 else
 {
  oEle.addEventListener(sEventName, fnHandler, false);
 }
}
window.onload = function()
{
 var oDiv=document.getElementById('reg_float_layer');
 var oBtnMin=document.getElementById('btn_min');
 var oBtnClose=document.getElementById('btn_close');
 var oDivContent=oDiv.getElementsByTagName('div')[0];
 
 var iMaxHeight=0;
 
 var isIE6=window.navigator.userAgent.match(/MSIE 6/ig) && !window.navigator.userAgent.match(/MSIE 7|8/ig);
 
 oDiv.style.display='block';
 iMaxHeight=oDivContent.offsetHeight;
 
 if(isIE6)
 {
  oDiv.style.position='absolute';
  repositionAbsolute();
  miaovAddEvent(window, 'scroll', repositionAbsolute);
  miaovAddEvent(window, 'resize', repositionAbsolute);
 }
 else
 {
  oDiv.style.position='fixed';
  repositionFixed();
  miaovAddEvent(window, 'resize', repositionFixed);
 }
 
 oBtnMin.timer=null;
 oBtnMin.isMax=true;
 oBtnMin.onclick=function ()
 {
  startMove
  (
   oDivContent, (this.isMax=!this.isMax)?iMaxHeight:0,
   function ()
   {
    oBtnMin.className=oBtnMin.className=='min'?'max':'min';
   }
  );
 };
 
 oBtnClose.onclick=function ()
 {
  oDiv.style.display='none';
 };
};

function startMove(obj, iTarget, fnCallBackEnd)
{
 if(obj.timer)
 {
  clearInterval(obj.timer);
 }
 obj.timer=setInterval
 (
  function ()
  {
   doMove(obj, iTarget, fnCallBackEnd);
  },30
 );
}

function doMove(obj, iTarget, fnCallBackEnd)
{
 var iSpeed=(iTarget-obj.offsetHeight)/8;
 
 if(obj.offsetHeight==iTarget)
 {
  clearInterval(obj.timer);
  obj.timer=null;
  if(fnCallBackEnd)
  {
   fnCallBackEnd();
  }
 }
 else
 {
  iSpeed=iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed);
  obj.style.height=obj.offsetHeight+iSpeed+'px';
  
  ((window.navigator.userAgent.match(/MSIE 6/ig) && window.navigator.userAgent.match(/MSIE 6/ig).length==2)?repositionAbsolute:repositionFixed)()
 }
}

function repositionAbsolute()
{
 var oDiv=document.getElementById('reg_float_layer');
 var left=document.body.scrollLeft||document.documentElement.scrollLeft;
 var top=document.body.scrollTop||document.documentElement.scrollTop;
 var width=document.documentElement.clientWidth;
 var height=document.documentElement.clientHeight;
 
 oDiv.style.left=left+width-oDiv.offsetWidth+'px';
 oDiv.style.top=top+height-oDiv.offsetHeight+'px';
}

function repositionFixed()
{
 var oDiv=document.getElementById('reg_float_layer');
 var width=document.documentElement.clientWidth;
 var height=document.documentElement.clientHeight;
 
 oDiv.style.left=width-oDiv.offsetWidth+'px';
 oDiv.style.top=height-oDiv.offsetHeight+'px';
}