var cur_photo;

	function photo_close() {
		document.getElementById('opacity_bgr').style.display = 'none';
		document.getElementById('photo_layer').style.display = 'none';
	}

	function photo_show(photo, photo_path) {
		path = photo_path;
		cur_photo = photo;

		document.getElementById('opacity_bgr').style.display = 'block';
		document.getElementById('photo_layer').style.display = 'block';
		document.getElementById('photo').src = '/gallery/photo/'+photo_path+'/photo_'+photo+'.jpg';
	}

	function photo_next() {
		if (cur_photo == max_photo) {  }
		else {
			cur_photo++;
			document.getElementById('photo').src = '/gallery/photo/'+photo_path+'/photo_'+cur_photo+'.jpg';
		}
	}

	function photo_prev() {
		if (cur_photo == 1) {  }
		else {
			cur_photo--;
			document.getElementById('photo').src = '/gallery/photo/'+photo_path+'/photo_'+cur_photo+'.jpg';
		}
	}