// JavaScript Document

function fondo_hora(){
		var d = new Date();
		var c_hour = d.getHours();
		if (c_hour > 18 || c_hour < 6 ) {
			document.getElementById('body').style.backgroundImage = 'url(images/bg.jpg)';
			document.getElementById('body').style.backgroundRepeat = 'repeat';
			}
		else 
			{
			document.getElementById('body').style.backgroundImage = 'url(images/bg.png)';
			document.getElementById('body').style.backgroundRepeat = 'repeat';

			}
	}