function lightbox_disable() {
	document.getElementById('fade').style.display = 'none';
	document.getElementById('light').style.display = 'none';
	//document.getElementById('light_principal').style.display = 'none';
};
function lightbox_enable(div) {
	document.getElementById('fade').style.display = 'block';
	document.getElementById(div).style.display = 'block';
};