// JavaScript Document

var page;
page = 1;

function pageturn(direction) 
{
  if(direction=='forward'){
	document.getElementById("paragraph"+page).style.visibility="hidden";
	document.getElementById("photo"+page).style.visibility="hidden";
	page = page + 1;
	document.getElementById("paragraph"+page).style.visibility="visible";
	document.getElementById("photo"+page).style.visibility="visible";
  } else {
	document.getElementById("paragraph"+page).style.visibility="hidden";
	document.getElementById("photo"+page).style.visibility="hidden";
	page = page - 1;
	document.getElementById("paragraph"+page).style.visibility="visible";
	document.getElementById("photo"+page).style.visibility="visible";
  }

  if(page == 1){
	document.getElementById("leftArrow").style.visibility="hidden";
	document.getElementById("noLeftArrow").style.visibility="visible";
  } else {
    document.getElementById("leftArrow").style.visibility="visible";
	document.getElementById("noLeftArrow").style.visibility="hidden";
  }
  if(page == 6){
	document.getElementById("rightArrow").style.visibility="hidden";
	document.getElementById("noRightArrow").style.visibility="visible";
  } else {
    document.getElementById("rightArrow").style.visibility="visible";
	document.getElementById("noRightArrow").style.visibility="hidden";
  }
}