// JavaScript Document
			var imagenes = new Array(); 
			imagenes[0] = "/images/cap_1.gif"; 
			imagenes[1] = "/images/cap_2.gif"; 
			imagenes[2] = "/images/cap_3.gif"; 
			document.getElementById("logo1").style.background = "url("+imagenes[parseInt(Math.random()*3)]+") no-repeat top left";