// expand nav
function switch_image(id) {
	thevalue = '/_uploads/imagesource.php?image=' + id + '&maxwidth=271&maxheight=422';
	document.getElementById('main').src = thevalue;
}
function detail_switch(id) {
	document.getElementById('type'+id).style.display = 'block';
	document.getElementById('event_detail').className = 'servicesimg2';
}
function detail_switch_off(id) {
	document.getElementById('type'+id).style.display = 'none';
	document.getElementById('event_detail').className = 'servicesimg';
}

function addToLightbox(id) {
	document.getElementById('lightbox'+id).style.display = '';
	
	// close all other boxes
	var c = 1;
	while(c <= 10) {
	  if(c != id) {
		document.getElementById('lightbox'+c).style.display = 'none';
	  }	
	c ++;
	}
}
function closeLightbox(id) {
	document.getElementById('lightbox'+id).style.display = 'none';
}
function block_switch(on,off) {
	document.getElementById(on).style.display = 'block';
	document.getElementById(off).style.display = 'none';
}