function showhide(what,obj) 
{    
  if(what.checked) 
  {        
    obj1 = document.getElementById(obj);        
    obj1.style.display = 'block';            
  } else {        
    obj1 = document.getElementById(obj);        
    obj1.style.display = 'none';        
  }
}

function enableInsert(what,obj) 
{    
  if(what.checked) 
  {        
    obj1 = document.getElementById(obj).readOnly = false;  
    obj1 = document.getElementById(obj).style.backgroundColor = '#FFFFCC';
  } else {        
    obj1 = document.getElementById(obj).readOnly = true;        
    obj1 = document.getElementById(obj).style.backgroundColor = '#ECECEC';
  }
}