// JavaScript Document

function show_div(id) 
{  	

  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( id );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[id];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[id];
	

	if (elem.style.display == 'block' || elem.style.display == '') 
	{  
             elem.style.display = 'none';  
    }
	else 
	{  
             elem.style.display = 'block';  
    }  

}