var xmlhttpContact;

function focusSearchInput(input)
{  
  if(input.value == 'Ingrese texto o COD')
  {
    input.value = '';
    input.className = 'active'; 
  }
}

function blurSearchInput(input)
{ 
  if(input.value == '')
  {
    input.value = 'Ingrese texto o COD';
    input.className = 'inactive';
  } 
}

function focusInput(input)
{  
  if(input.value == 'Ingrese texto')
  {
    input.value = '';
    input.className = 'active'; 
  }
}

function focusEmail(input)
{  
  input.className = 'active';
  if(input.value == 'Ingrese texto')
    input.value = '';
}

function blurInput(input)
{ 
  if(input.value == '')
  {
    input.value = 'Ingrese texto';
    input.className = 'inactive';
  } 
}

function changeCurrency(input)
{ 
  if(input.selectedIndex == 0)
    input.className = 'cl';
  else if(input.selectedIndex == 1)
    input.className = 'us';  
}

function validateForm(frm)
{
  var errors = 0;
  if(trim(frm.name.value) == '' || frm.name.value == 'Ingrese texto')
  {
    frm.name.className = 'error';
    errors++;
  }
   
  if(trim(frm.email.value) == '' || frm.email.value == 'Ingrese texto' || !isEmail(trim(frm.email.value)))
  {
    frm.email.className = 'error';
    errors++;
  }
  
  if(trim(frm.message.value) == '' || frm.message.value == 'Ingrese texto')
  {
    frm.message.className = 'error';
    errors++;
  }
   
  if(errors > 0)
  {
    var msg = frm.getElementsByTagName('div')[0].firstChild;
    msg.className = 'errorMessages';
    msg.textContent = 'Corrija los campos marcados con rojo!';
    return false;
  }
  else
  {
    xmlhttpContact = GetXmlHttpObject();
    
    if(xmlhttpContact == null)
    {
      alert ("Browser does not support HTTP Request");
      return;
    } 
    parameters = "name=" + frm.name.value; 
    parameters += "&email=" + frm.email.value;
    parameters += "&message=" + frm.message.value;
    xmlhttpContact.onreadystatechange = sendMailResult;
    xmlhttpContact.open("POST", 'includes/sendMail.php', true);
    xmlhttpContact.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlhttpContact.setRequestHeader("Cache-Control", "no-cache");
    xmlhttpContact.setRequestHeader("Content-length", parameters.length);
    xmlhttpContact.setRequestHeader("Connection", "close");
    xmlhttpContact.send(parameters);
  }
}

function trim(str)
{
   return str.replace(/^\s+|\s+$/g,'');
}

function isEmail(str)
{
  var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;
  return regex.test(str);
}

function clearContactFormErrors(frm)
{
  if(frm.name.className == 'error') frm.name.className = 'inactive';
  if(frm.email.className == 'error') frm.email.className = 'inactive';
  if(frm.message.className == 'error') frm.message.className = 'inactive';
  var msg = frm.getElementsByTagName('div')[0].firstChild;
  msg.textContent = '';
  msg.removeAttribute('class'); 
}

function sendMailResult()
{
	if(xmlhttpContact.readyState == 1)
  {
    var divForm = document.getElementById('contactForm');
    divForm.innerHTML = " <img class='loading' src='../images/loading2.gif' />Enviando formulario...";  
  } 
	
  if(xmlhttpContact.readyState == 4)
  {
    var xmlDoc = xmlhttpContact.responseXML;
    var email = xmlDoc.getElementsByTagName('email')[0];
    var result = email.getAttribute('sent');  
    
    var divForm = document.getElementById('contactForm');
    var resultImage = document.createElement('img');
    if(result)
    {
      resultImage.src = 'images/tick.png';
      var resultText = document.createTextNode('Su mensaje fue enviado exitosamente. Prontamente recibirá una respuesta a la dirección que nos indicó. Gracias por haberse contactado con nosotros.');
    }
    else
    {
      resultImage.src = 'images/cross.png';
      var resultText = document.createTextNode('Lamentablemente ocurrió un error durante el envío del formulario. Por favor inténtelo nuevamente o escríbanos a contacto@dprisma.cl. Gracias por su comprensión.');
    }
    resultImage.className = 'sentResult';
     
    while(divForm.hasChildNodes())
		  divForm.removeChild(divForm.firstChild);
		  
		divForm.appendChild(resultImage);
		divForm.appendChild(resultText);
  }
}

function GetXmlHttpObject()
{
	if (window.XMLHttpRequest)
	{
		// code for IE7+, Firefox, Chrome, Opera, Safari
		return new XMLHttpRequest();
	}
	if (window.ActiveXObject)
	{
		// code for IE6, IE5
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}

function resetForm()
{
  var frm = document.forms['contact'];
  frm.name.value = 'Ingrese texto';
  frm.email.value = 'Ingrese texto';
  frm.message.value = 'Ingrese texto';
}