var el;  
var initTop;  
var interval = 500; 
function setting()  
{ 
  try{ 
    if ($("movBannerCover").style.display != "block") {
      return false;
    }
  }catch(e){ return false}
  el = document.getElementById('movBannerCover');  
  initTop = el.offsetTop||getTop( { el:el } );  
  el.style.position = 'absolute';  
  try {  
    window.addEventListener('scroll', scrollEvent, false);  
  } catch (e) {  
    window.attachEvent('onscroll',scrollEvent);  
  }  
 
}  
function scrollEvent()  
{  
  var myInt = setInterval(function()  
      {  
        var cur = (document.body.scrollTop||document.documentElement.scrollTop)+20;  
        var myTop = el.offsetTop||getTop( { el:el } );  
        var d = cur-myTop;  
        if(Math.abs(d)>1) {  
          if( cur >= initTop )  
  {  
    var y = myTop + d/3;  
    el.style.top = setPx(y);  
  } else {  
    el.style.top = setPx(initTop);  
    clearInterval(myInt);  
  }  
  } else {  
    el.style.top = setPx(cur);  
    clearInterval(myInt);  
  }  
  },interval);  
}  
function getTop( args )  
{  
  var el = args.el;  
  var tagName = el.tagName;  
  var top = args.top||0;  
  if(tagName=='body'||tagName=='BODY')  
  {  
    return top;  
  } else {  
    return arguments.callee( { el:el.offsetParent, top:top += el.offsetTop } );  
  }   
}  
function setPx( num )  
{  
  return num+'px';  
}  
try {  
  window.addEventListener('load', setting, false);  
} catch (e) {  
  window.attachEvent('onload', setting);  
} 
function hideBanner()
{
  $('movBannerCover').style.display = "none";
  document.cookie = "hidebanner=true"
}
function CookieRead(kword)
{
  if(typeof(kword) == "undefined")
    return "";
  kword = kword + "=";
  kdata = "";
  scookie = document.cookie + ";";
    start = scookie.indexOf(kword);
    if (start != -1){
      end = scookie.indexOf(";", start);
      kdata = unescape(scookie.substring(start + kword.length, end));
    }
  return kdata;
}
//kyo 20090217 homePage addFavorite
function setHomepage(){ 
	if (document.all){ 
		document.body.style.behavior='url(#default#homepage)'; 
		document.body.setHomePage('http://www.japan-zaixian.cn'); 
	}else if (window.sidebar){ 
		if(window.netscape){ 
			try{ 
				netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); 
			}catch(e){ 
				alert("您的浏览器没有打开此项设置，请在地址栏输入about:config将signed.applets.codebase_principal_support的值设为true");
				return false; 
			} 
		} 
		var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch); 
		prefs.setCharPref('browser.startup.homepage','http://www.japan-zaixian.cn'); 
	} 
} 
function JSAddFavorite(){
	if ( window.sidebar && "object" == typeof( window.sidebar ) && "function" == typeof( window.sidebar.addPanel ) ){
		//firefox
		window.sidebar.addPanel( 'JAPAN在线', 'http://www.japan-zaixian.cn', '' );
	}else if ( document.all && "object" == typeof( window.external ) ){
		window.external.addFavorite( 'http://www.japan-zaixian.cn', 'JAPAN在线' );
	}
}