var currLBIndex = -1;

function showLightBox(ui) {
	var lbg = document.getElementById('lb_layer');
	var lil = document.getElementById('lb_imgLayer');
	var limg = document.getElementById('lb_img');
	limg.src = ui;
	
	lbg.style.visibility = "visible";
	lil.style.visibility = "visible";
}

function hideLightBox() {
	var lbg = document.getElementById('lb_layer');
	var lil = document.getElementById('lb_imgLayer');
	var limg = document.getElementById('lb_img');
	
	lbg.style.visibility = "hidden";
	lil.style.visibility = "hidden";
	limg.src = "";
}

function prevLBImage() {
	if (currLBIndex > 0) {
		eval('lbImage_' + (currLBIndex - 1) + '();');
	}
}

function nextLBImage() {
		eval('lbImage_' + (currLBIndex + 1) + '();');
	
}