function ExChgClsName(Obj,NameA,NameB){
var Obj=document.getElementById(Obj)?document.getElementById(Obj):Obj;
setCookie('Menubox', 'MenuBox');
if(getcookie)
Obj.className=Obj.className==NameA?NameB:NameA;
}
function showMenu(iNo){
ExChgClsName("Menu_"+iNo,"MenuBox","MenuBox2");
}

function Show(id,i_id){
        var on_img="http://www.cbiw.com.cn/member/pic/ass04.gif";//打开时图片
        var off_img="http://www.cbiw.com.cn/member/pic/ass03.gif";//隐藏时图片
        var obj=document.getElementById('c_'+id);
        if(obj.style.display=="none"){
                obj.style.display="";
        i_id.src=on_img;
        //将子菜单Id放入Cookies
        var curShow = readCookie('curShow');
        if(curShow!='')
        {
          var arr_curShow = curShow.split(',');
          var found = false;
          for(i=0;i<arr_curShow.length-1;i++)
          {
            if(arr_curShow[i].toString()==id) {found=true;}
          }
          if(!found){writeCookie('curShow',curShow+','+id,12)}
        }
        else {
          writeCookie('curShow',id,12)
        }
        //将子菜单Id放入Cookies End
        }else{
                obj.style.display="none";
        i_id.src=off_img;
        //将子菜单Id从Cookies中移除
        var curShow = readCookie('curShow');
        if(curShow!='')
        {
          var arr_curShow = curShow.split(',');
          for(i=0;i<arr_curShow.length;i++)
          {
            if(arr_curShow[i].toString()==id) {arr_curShow=arr_curShow.del(i--);}
          }
          curShow = arr_curShow.join(',');
          //alert(curShow);
          writeCookie('curShow',curShow,12)
        }
        //将子菜单Id从Cookies中移除 End
        }

}

function readCookie(name)

{

  var cookieValue = "";

  var search = name + "=";

  if(document.cookie.length > 0)

  { 

    offset = document.cookie.indexOf(search);

    if (offset != -1)

    { 

      offset += search.length;

      end = document.cookie.indexOf(";", offset);

      if (end == -1) end = document.cookie.length;

      cookieValue = unescape(document.cookie.substring(offset, end))

    }

  }

  return cookieValue;

}

function writeCookie(name, value, hours)

{

  var expire = "";

  if(hours != null)

  {

    expire = new Date((new Date()).getTime() + hours * 3600000);

    expire = "; expires=" + expire.toGMTString();

  }

  document.cookie = name + "=" + escape(value) + expire;

}

//----设置Cookie------

function setCookie(name,value,domain)

{

var value = escape(value);

var nameString = "Drag_"+name + "=" + value; //给cookie变量增加前缀

var extime = new Date(); 

extime.setTime (extime.getTime () + 315360000);

var expiryString = ";expires=" + extime.toGMTString();

var domainString = "";

var pathString = ";path=/"; 

var setvalue = nameString + expiryString;

document.cookie = setvalue;
}

//----设置Cookie 结束------

//---读取Cookie-------

function getcookie (name) 
{
var CookieFound = false;
var start = 0;
var end = 0;
var CookieString = document.cookie;

var i = 0;
name="Drag_"+name; //增加前缀
while (i <= CookieString.length) 
{
start = i ;
end = start + name.length;
if (CookieString.substring(start, end) == name)
{
CookieFound = true;
break; 
}
i++;
}

if (CookieFound)
{
start = end + 1;
end = CookieString.indexOf(";",start);
if (end < start)
end = CookieString.length;
var getvalue = CookieString.substring(start, end);
return unescape(getvalue);
}
return "";
}

//---读取Cookie 结束-------

//检测是否禁用了cookie
function isEnableCookie() { 
try {
var cookie_helper = new CookieHelper("");
var test_cookie_name = "test_cookie_name";
var test_cookie_value = "test_cookie_value";
var test_cookie_value_ret = "";

cookie_helper.writeCookie(test_cookie_name,test_cookie_value);
test_cookie_value_ret = cookie_helper.getCookieValue(test_cookie_name); 

if ( test_cookie_value_ret != null ) {
cookie_helper.removeCookie(test_cookie_name);
return true;
} else { 
return false;
} 
} catch (error) { 
return false;
}
}