function  myChange()   
  {   
   var s1 ="<%=pc_str%>";
   var lift_str;
  if(s1.length >=1000)   
  {   
  lift_str ="<img src='Template/Images/Advertise/adver_10.gif' />"; 
  }   
  else   
  {   
  lift_str ="" ;   
  }document.write(lift_str);
  };   

 function  mypc()   
  {   
   var s2="<%=pc_str%>";
   var rih_str;
  if(s2.length <=1000)   
  {   
  rih_str ="<img src='Template/Images/Advertise/adver.jpg' />"; 
  }   
  else   
  {   
  rih_str ="";  
  }document.write(rih_str);
  };