function dropdown(menuname,command)
{
	if (command == 'on')
	{
		document.getElementById(menuname).style.display = 'block';
	}
	else if (command == 'off')
	{
		document.getElementById(menuname).style.display = 'none';
	}
}


function display(id,tot)
{
  do 
  {	  	
  	document.getElementById('project'+tot).style.display = 'none';
  	tot--;
  }
  while(tot>=0);
  
  document.getElementById('project1').style.display = 'block';
  
}