function setPage(newId, oldId)
{
	document.getElementById(oldId).style.display = 'none';
	document.getElementById(newId).style.display = 'block';
}

// AJAX CODE -- MAILFORM																																																																																																																																																																																																																																																																																																																			
																																																																																																																																																																																																																																																																																																																				function checkFields(keer)
{

	var fout
	var statusBar = document.getElementById('status')
	var naam = document.getElementById('name')
	var email = document.getElementById('email')
	var bericht = document.getElementById('message')
	//var naamError = document.getElementById('naamerror')
	//var emailError = document.getElementById('emailerror')
	//var berichtError = document.getElementById('berichterror')
	var naamVar = naam.value
	var emailVar = email.value	
	var berichtVar = bericht.value		
	var alfabet = /^[a-zA-Z \_]+$/
	var emailChar = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/
	var berichtChar = /^[\']$/
	
	if(keer == 0)
	{
		naam.style.background = "#fff"
		email.style.background = "#fff"
		bericht.style.background = "#fff"
		//naamError.innerHTML = ''
		//emailError.innerHTML = ''
		//berichtError.innerHTML = ''
		statusBar.innerHTML = ''
		fout = 0
	}

	if(naam.value.match(alfabet))
	{
		
	}
	else
	{
		naam.style.background = "#db7e7e"
		//naamError.innerHTML = ' > alleen letters'
		statusBar.innerHTML = 'Form is incomplete'
		++fout
	}
	
	if(naam.value.length > 0)
	{
	
	}
	else
	{
		naam.style.background = "#db7e7e"
		//naamError.innerHTML = ' > verplicht'
		statusBar.innerHTML = 'Form is incomplete'
		++fout
	}
	
	if(email.value.length > 0)
	{

	}
	else
	{
		email.style.background = "#db7e7e"
		//emailError.innerHTML = ' > verplicht'
		statusBar.innerHTML = 'Form is incomplete'
		++fout
	}
	if(email.value.match(emailChar))
	{
		
	}
	else
	{
		email.style.background = "#db7e7e"
		//emailError.innerHTML = ' > ongeldig'
		statusBar.innerHTML = 'Form is incomplete'
		++fout
	}
	
	if(bericht.value.length > 0)
	{

	}
	else
	{
		bericht.style.background = "#db7e7e"
		//berichtError.innerHTML = ' > verplicht'
		statusBar.innerHTML = 'Form is incomplete'
		++fout
	}
	if(bericht.value.match(berichtChar))
	{
		berichtVar.replace(/\'/,"-")
	}
	if(bericht.value.length > 0)
	{
	
	}
	else
	{
		bericht.style.background = "#db7e7e"
		//berichtError.innerHTML = ' > verplicht'
		statusBar.innerHTML = 'Form is incomplete'
		++fout
	}
	
	if(fout == 0){
		var poststr = "naam=" + encodeURI( naamVar ) +
					  "&email=" + encodeURI( emailVar ) +
					  "&bericht=" + encodeURI( berichtVar );
		zendPOSTRequest('http://www.onnogroen.nl/scripts/php/contact_form.php', poststr);
		statusBar.innerHTML = 'Sending form...';
	}	
}
	
function zendPOSTRequest(url, parameters)
{
	http_request = false;
	
	// Als het FireFox is dan:
	if (window.XMLHttpRequest) 
	{
	 	http_request = new XMLHttpRequest();
	}
	// Als het IE is dan:
	else if (window.ActiveXObject) 
	{
	 	try
		{
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
	 	}
		catch (e)
		{
			try 
			{
		   	http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			catch (e) 
			{}
	 	}
	}
	
	// Wat moet hij doen als de browser geen http_request ondersteund
	if (!http_request) 
	{
	 alert('Kan geen XMLHTTP instantie maken');
	 return false;
	}
	
	http_request.onreadystatechange = verwerkResultaat;
	http_request.open('POST', url, true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", parameters.length);
	http_request.setRequestHeader("Connection", "close");
	http_request.send(parameters);
}

function verwerkResultaat() 
{
	if (http_request.readyState == 4) 
	{
 		if (http_request.status == 200) 
		{
			if(http_request.responseText == 'ok')
			{
				var statusBar = document.getElementById('status')
				statusBar.innerHTML = 'Form has been send'
			}
			else
			{
				var statusBar = document.getElementById('status')
				statusBar.innerHTML = 'Failure to send'
			}
 		} 
		else 
		{
			var statusBar = document.getElementById('status')
			statusBar.innerHTML = 'Failure to send'
 		}
	}
}