function newImage() 
    {
        
	MyImages=new Array();
   	
	MyImages[0]='/recursos/random/NW.jpg';
	    
    var link= new Array();

	link[0]='http://www.banxico.org.mx/inicio/noticias-y-novedades/nuevo-web.html';

    var randomNumber = Math.round(Math.random()*(MyImages.length-1));
	document.getElementById("randomImage").setAttribute("src", MyImages[randomNumber]);
	document.getElementById("randomLink").setAttribute("href", link[randomNumber]);

    }