// JavaScript Document 
// Hide/Show content

function hideall(){
  for (count=1; count<5; count+=1) // set "count" to one more than the total images/links
  document.getElementById('nav'+count).style.display='none';
}

function showbox(nav){
  document.getElementById(nav).style.display='block';
}


function hidebox(nav){
	document.getElementById(nav).style.display='none';
}