// JavaScript Document

function cambia_boton(boton,num,opcion){

if(opcion==1){

  switch(num){
    case 1:
	  ruta = "http://www.webasesorias.com/img/boton_inicio_pulsado.jpg";
	break;
	case 2:
	  ruta = "http://www.webasesorias.com/img/boton_pulsado_empresa_11.jpg";
	break;
	case 3:
	  ruta = "http://www.webasesorias.com/img/boton_pulsado_diseno_11.jpg";
	break;
	case 4:
	  ruta = "http://www.webasesorias.com/img/boton_pulsado_marketing_11.jpg";	
	break;
	case 5:
	  ruta = "http://www.webasesorias.com/img/boton_pulsado_asesorias_11.jpg";
	break;
	case 6:
	  ruta = "http://www.webasesorias.com/img/boton_pulsado_contacto_11.jpg";	
	break;
  }
  boton.setAttribute("src",ruta);
  
  boton.style.width = "112px";
  boton.style.height = "83px";
  
}

if(opcion==2){
	
	switch(num){
    case 1:
	  ruta = "http://www.webasesorias.com/img/boton_inicio.jpg";
	break;
	case 2:
	  ruta = "http://www.webasesorias.com/img/boton_doltronic.jpg";
	break;
	case 3:
	  ruta = "http://www.webasesorias.com/img/boton_diseno.jpg";
	break;
	case 4:
	  ruta = "http://www.webasesorias.com/img/boton_marketing.jpg";	
	break;
	case 5:
	  ruta = "http://www.webasesorias.com/img/boton_asesorias.jpg";
	break;
	case 6:
	  ruta = "http://www.webasesorias.com/img/boton_contacto.jpg";	
	break;
  }
  

  boton.setAttribute("src",ruta);
 
  boton.style.width = "114px";
  boton.style.height = "86px";
  
  if(pulsado == boton){
    cambia_boton(boton,num,1);
  }
}

}


function validar_formulario(formulario){
	nombre = formulario.nombre.value;
	telefono = formulario.telefono.value;
	email = formulario.email.value;
	observaciones = formulario.observaciones.value;
	
	error = "";
	
	if(nombre == ""){
	  error += "Campo nombre vacio \n";
	}
	if(telefono == ""){
	  error += "Campo telefono vacio \n";	
    }
	if(email == ""){
	  error += "Campo email vacio \n";
	}else{
	  if(email.indexOf("@") == -1 || email.indexOf(".") == -1){
	    error += "Formato de email erroneo.\n";
	  }
	}
	if(observaciones == ""){
	  error += "Por favor indique que necesita.\n";
	}
	
	if(error == ""){
	   formulario.submit();
	}else{
	  alert(error);
	}
}