function Change(txt,val)
  {
    if (val==0)
    {    txt.style.color='#000000';
           if (txt==s)
           { st.style.visibility='visible';          
              s1.style.visibility='visible';          
            }
            else if (txt!=st && txt!=s1)
            { st.style.visibility='hidden';          
               s1.style.visibility='hidden';          
             }
           if(txt==cl)
            {
              cl1.style.visibility='visible';          
              n.style.visibility='visible';          
              f.style.visibility='visible';          
             }
          else if (txt!=n && txt!=f && txt!=cl1)
            { 
               cl1.style.visibility='hidden';          
               n.style.visibility='hidden';          
               f.style.visibility='hidden';          
             }
           if (txt==cl || txt==s)
                setTimeout("Hide()",5000);
      }
     else
       { txt.style.color='#858686';
       }
}
       function Hide()
       {
                st.style.visibility='hidden';          
                s1.style.visibility='hidden';          
                n.style.visibility='hidden';          
                cl1.style.visibility='hidden';          
                f.style.visibility='hidden';    
        }
  function Change1(txt,val)
  {
     if (val==0)
        txt.style.textDecoration='underline';
     else
       txt.style.textDecoration='none';
  }