window.onload = function() {
	formacion = new Image(225,128);
	formacion.src = "images/formacion.png";
	formacionOver = new Image(225,128);
	formacionOver.src = "images/formacionOver.png";
	Contactar = new Image(300, 160);
	Contactar.src = "images/organizacion/btContactar.png"
	ContactarOver = new Image(300, 160);
	ContactarOver.src = "images/organizacion/btContactarOver.png"
	var link = document.getElementById('a-formacion-rollover');
	var imagen= document.getElementById('img-formacion-rollover');
	var linkEnviarEmail = document.getElementById('a-enviar-email-rollover');
	var imagenEnviarEmail = document.getElementById('img-enviar-email-rollover');
	if (link && imagen) {
		link.onmouseover = function() {
			imagen.src = formacionOver.src;
		}
	
		link.onmouseout= function() {
			imagen.src = formacion.src;
		}
	}
	if (linkEnviarEmail && imagenEnviarEmail) {
		linkEnviarEmail.onmouseover = function() {
			imagenEnviarEmail.src = ContactarOver.src;
		}
	
		linkEnviarEmail.onmouseout= function() {
			imagenEnviarEmail.src = Contactar.src;
		}
	}
}