var pages = 0;
var currentpage = 1;
function setPages(lastpage)
{
	pages = lastpage;
}
function displayPreviousPage()
{
	if (currentpage > 1) displayPage((currentpage - 1));
}
function displayNextPage()
{
	if (currentpage < pages) displayPage((currentpage + 1));
}
function displayPage(page)
{
	for (i = 1; i <= pages; i++)
	{
		document.getElementById('page'+i).style.display = 'none';
		document.getElementById('link'+i).style.color = '#103B7A';
	}
	currentpage = page;
	document.getElementById('page'+page).style.display = 'block';
	document.getElementById('link'+page).style.color = '#0077B7';
}