function checkCookie()
  {
     
       jft=getCookie('jft');
          
          if (jft=='1'){
     
      t2s();
       
    }
    else if(jft=='2') {
        s2t();
        
    }
    else{

    }
  }
  
  function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    { 
    c_start=c_start + c_name.length+1; 
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    } 
  }
return "";
}