function validarBusqueda(objForm)
{
	if (trim(objForm.edtKeyword.value)=="")
	{
		alert("Please, a key word for the search enters.");
		objForm.edtKeyword.focus();
		return false;
	}
	if(trim(objForm.edtKeyword.value.length)<3)
	{
		alert("A term nonsmaller must enter to 3 characters.");
		objForm.edtKeyword.focus();
		return false;
	}
	return true;
}