function validar_buscador(form)
{
if (form.t.value == "")
{ alert("Por favor introduzca un t\u00e9rmino de b\u00fasqueda"); form.t.focus(); return ; }



form.submit();

}

//--------------------------------------------------------------------------------


function validar_carrito(form)
{
	
if (form.forma_pago.value == "")
{ alert("Por favor introduzca forma de pago"); form.forma_pago.focus(); return ; }

if (form.nombre.value == "")
{ alert("Por favor introduzca su nombre"); form.nombre.focus(); return ; }

if (form.apellidos.value == "")
{ alert("Por favor ingrese apellidos"); form.apellidos.focus(); return; }





if (form.direccion.value == "")
{ alert("Por favor ingrese direcci\u00f3n"); form.direccion.focus(); return; }





if (form.email.value == "")
{ alert("Por favor ingrese email"); form.email.focus(); return; }

if (form.email.value!="")
			{
				if (form.email.value.indexOf('@', 0) == -1 ||form.email.value.indexOf('.', 0) == -1)
					{ alert("Direcci\u00f3n de e-mail inv\u00e1lida"); form.email.focus(); return; }
				
			}
			
			if (form.telefono.value == "")
{ alert("Por favor ingrese tel\u00e9fono"); form.telefono.focus(); return; }

form.submit();

}
//------------------------------------------------------------------------

//--------------------------------------------------------------------------------


function validar_contacto(form)
{
	


if (form.nombre.value == "")
{ alert("Por favor introduzca su nombre"); form.nombre.focus(); return ; }


if (form.email.value == "")
{ alert("Por favor ingrese email"); form.email.focus(); return; }

if (form.email.value!="")
			{
				if (form.email.value.indexOf('@', 0) == -1 ||form.email.value.indexOf('.', 0) == -1)
					{ alert("Direcci\u00f3n de e-mail inv\u00e1lida"); form.email.focus(); return; }
				
			}
			




if (form.notas.value == "")
{ alert("Por favor ingrese comentario"); form.notas.focus(); return; }

form.submit();

}

//**********************************************************************************


function showHide(elemento,modo) { 
	objeto = document.getElementById(elemento); 
	objeto.style.display = (objeto.style.display==modo)?'none':modo; 
}