function valida_contact_bloq() {
	
	var bandera = 0;
	
	oNombre = document.getElementById('ContactFormNombre');
	if (oNombre.value == '') {
		document.getElementById('div_nombre_error').style.display = "block";
		bandera++;
	}
	else{
		document.getElementById('div_nombre_error').style.display = "none";
	}
	
	oEmail = document.getElementById('ContactFormEmail');
	plant = /\b[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b/i
	if (!plant.test(oEmail.value)) {
		document.getElementById('div_email_error').style.display = "block";
		bandera++;
	}
	else{
		document.getElementById('div_email_error').style.display = "none";
	}
	
	
	oTel = document.getElementById('ContactFormTelefono');
	plant =/^[0-9]{5,20}/
	if (!plant.test(oTel.value)) {
		document.getElementById('div_tel_error').style.display = "block";
		bandera++;
	}
	else{
		document.getElementById('div_tel_error').style.display = "none";
	}
	
	
	
	oAsunto = document.getElementById('ContactFormAsunto');
	if (oAsunto.value == '') {
		document.getElementById('div_asunto_error').style.display = "block";
		bandera++;
	}
	else{
		document.getElementById('div_asunto_error').style.display = "none";
	}
	
	oMensaje = document.getElementById('ContactFormMensaje');
	if (oMensaje.value == '') {
		document.getElementById('div_mensaje_error').style.display = "block";
		bandera++;
	}
	else{
		document.getElementById('div_mensaje_error').style.display = "none";
	}

        oCaptcha = document.getElementById('input_captcha');
	if (oCaptcha.value == '') {
		document.getElementById('div_captcha_error').style.display = "block";
		bandera++;
	}
	else{
		document.getElementById('div_captcha_error').style.display = "none";
	}


	if(bandera > 0){
		return false;
	}
	
}