var page = 0;
function nextPage(color) {
	if (page < maxPages) {
		document.getElementById('textpart'+page).style.display = 'none';
		document.getElementById('textpart'+eval(page+1)).style.display = 'block';
		page++;
		if (page > 0)
			document.getElementById('imgLeft').src= 'pics/nav/links_'+color+'.gif'
		else
			document.getElementById('imgLeft').src= 'pics/nav/links_dis_'+color+'.gif'
		
		if (page == maxPages)
			document.getElementById('imgRight').src= 'pics/nav/rechts_dis_'+color+'.gif'
			
		document.getElementById('paginavan').innerHTML = page+1;	
	}
}

function previousPage(color) {
	if (page > 0) {
		document.getElementById('textpart'+page).style.display = 'none';
		document.getElementById('textpart'+eval(page-1)).style.display = 'block';
		page--;
		
		if (page < maxPages)
			document.getElementById('imgRight').src= 'pics/nav/rechts_'+color+'.gif'
		else
			document.getElementById('imgRight').src= 'pics/nav/rechts_dis_'+color+'.gif'
		
		if (page == 0)
			document.getElementById('imgLeft').src= 'pics/nav/links_dis_'+color+'.gif'

		document.getElementById('paginavan').innerHTML = page+1;			
	}
}

function displayProject(element){
	if (document.getElementById(element).style.display == 'none')
		document.getElementById(element).style.display = 'block';
	else 
		document.getElementById(element).style.display = 'none';
}

function openInfo(naam){
	window.open('index.cfm?fuseaction=playtime.sprekerinfo&naam='+naam,'','status=1,toolbar=1,width=500,height=350,resizable=1');
}