function contactUsValidation(){
	if(document.contactusForm.firstname.value == ""){
		alert("Debe incluir el nombre");
		document.contactusForm.firstname.focus();
		return false;
	}else if(document.contactusForm.lastname.value == ""){
		alert("Debe incluir el apellido");
		document.contactusForm.lastname.focus();
		return false;
	}else if(document.contactusForm.phone.value == ""){
		alert("Debe ingresar un tel\351fono");
		document.contactusForm.phone.focus();
		return false;
	}else if(document.contactusForm.email.value == ""){
		alert("Debe incluir su e-mail");
		document.contactusForm.email.focus();
		return false;
	}else if(document.contactusForm.commentabout.selectedIndex == 0 ){
		alert("Debe ingresar comentarios en el campo");
		document.contactusForm.commentabout.focus();
		return false;
	}
	document.contactusForm.submit();
}