function onLoad()  {
				
function creaCarrito() {
	div_carrito = document.getElementById('carrito_compra');
	var posx = document.body.clientWidth;
	var posy = document.body.clientHeight;
	
		div_carrito.style.left = (posx-260) +"px";
	carritoX = (posx-260) +"px";
	carritoY = "20px";
		
		}
	
creaCarrito();
}