function gup( name )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
	return "";
  else
	return results[1];
}	

function trim(value) {
  value = value.replace(/^\s+/,'');
  value = value.replace(/\s+$/,'');
  return value;
}

function validateFields() {
	var frmEl = document.getElementById('cForm');
	var posName = document.getElementById('posName');
	var posEmail = document.getElementById('posEmail');
	var posRegard = document.getElementById('posRegard');
	var posText = document.getElementById('posText');
	var strCC = document.getElementById('selfCC');
	var whiteSpace = /^[\s]+$/;
	var ok = true;

	var typeForm = '';
	if (document.getElementById('type') != null) {
		typeForm = document.getElementById('type');
	}
	
	if ( posName.value == '' || whiteSpace.test(posName.value) ) {
		alert('Gelieve uw naam aan te vullen.');
		posName.focus();
		ok = false;
	}
	else if ( posRegard.value == '' || whiteSpace.test(posRegard.value) ) {
		alert("Gelieve uw onderwerp aan te vullen.");
		posRegard.focus();
		ok = false;
	}
	else if ( posText.value == '' || whiteSpace.test(posText.value) ) {
		alert("U probeert een lege email te versturen. Gelieve uw vraag aan te vullen.");
		posRegard.focus();
		ok = false;
	} 
	else if (posEmail.value == '') {
		alert('Gelieve uw emailadres aan te vullen.');
		posEmail.focus();
		ok = false;
	}
	else if (posEmail.value != '') {
		var pospunt = posEmail.value.indexOf("@");
		if (pospunt <= 0) {
			alert('Gelieve een geldig emailadres aan te vullen.');
			posEmail.focus();
			ok = false;
		}		
	}
	if ((ok == true) && (trim(typeForm.value) == 'p')) {
		var posSendTo = document.getElementById('posSendTo');
		if ( posSendTo.value == '' || whiteSpace.test(posSendTo.value) ) {
			alert('Gelieve het emailadres van uw vriend(in) aan te vullen.');
			posSendTo.focus();
			ok = false;
		}	
	}
	
	if (ok == true) {
		sendPosEmail();
	}
}
function sendPosEmail () {
	var success = document.getElementById('emailSuccess');
	var posName = document.getElementById('posName');
	var posEmail = document.getElementById('posEmail');
	var posRegard = document.getElementById('posRegard');
	var posText = document.getElementById('posText');
	var strCC = document.getElementById('selfCC').value;
	var carId = document.getElementById('id').value;
	var type = document.getElementById('type').value;
	var sendTo = '';
	if (gup('type') == 'p') {
		sendTo = document.getElementById('posSendTo').value;
	}
	var page = "scripts/xmlHttpRequest.php?contact=true&xml=true";
	
	showContactTimer(); // quickly begin the load bar
	success.style.display = 'none'; // hide the success bar (incase this is a multi-email
	
	// convert (&, +, =) to string equivs. Needed so URL encoded POST won't choke.
	var str1 = posName.value;
	str1 = str1.replace(/&/g,"**am**");
	str1 = str1.replace(/=/g,"**eq**");
	str1 = str1.replace(/\+/g,"**pl**");
	var str2 = posEmail.value;
	str2 = str2.replace(/&/g,"**am**");
	str2 = str2.replace(/=/g,"**eq**");
	str2 = str2.replace(/\+/g,"**pl**");
	var str3 = posRegard.value;
	str3 = str3.replace(/&/g,"**am**");
	str3 = str3.replace(/=/g,"**eq**");
	str3 = str3.replace(/\+/g,"**pl**");
	var str4 = posText.value;
	str4 = str4.replace(/&/g,"**am**");
	str4 = str4.replace(/=/g,"**eq**");
	str4 = str4.replace(/\+/g,"**pl**");
	
	var stuff = "selfCC="+strCC+"&posName="+str1+"&posEmail="+str2+"&posRegard="+str3+"&posText="+str4+"&id="+carId+"&type="+type+"&sendTo="+sendTo;
	loadXMLPosDoc(page,stuff)
}
function showContactTimer () {
	var loader = document.getElementById('loadBar');
	loader.style.display = 'block';
	sentTimer = setTimeout("hideContactTimer()",6000);
}

function hideContactTimer () {
	var loader = document.getElementById('loadBar');
	var success = document.getElementById('emailSuccess');
	var fieldArea = document.getElementById('contactFormArea');
	var inputs = fieldArea.getElementsByTagName('input');
	var inputsLen = inputs.length;
	var tAreas = fieldArea.getElementsByTagName('textarea');
	var tAreasLen = tAreas.length;
	// Hide the load bar alas! Done Loading
	loader.style.display = "none";
	success.style.display = "block";
	success.innerHTML = '<strong style="color:green;">'+grabPosXML("confirmation")+'</strong>';
	// Now Hijack the form elements
	for ( i=0;i<inputsLen;i++ ) {
		if ( inputs[i].getAttribute('type') == 'text' ) {
			inputs[i].value = '';
		}
	}
	for ( j=0;j<tAreasLen;j++ ) {
		tAreas[j].value = '';
	}
}

function ajaxContact() {
var frmEl = document.getElementById('cForm');
addEvent(frmEl, 'submit', validateFields, false);
frmEl.onsubmit = function() { return false; }
}
addEvent(window, 'load',ajaxContact, false);