function ajaxFunction()
{
	var ajaxRequest;
	
	try
	{
		ajaxRequest = new XMLHttpRequest();
	} 

	catch (e)
	{
		try
		{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} 

		catch (e) 
		{
			try
			{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} 

			catch (e)
			{
				alert("Your browser broke!");
				return false;
			}
		}
	}
	
	ajaxRequest.onreadystatechange = function()
	{
		if(ajaxRequest.readyState == 4 && ajaxRequest.status == 200)
		{
			var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}

	var firstoption = document.getElementById('firstoption').value;
	var queryString = "?firstoption="+firstoption;
	ajaxRequest.open("GET", "http://www.brochures.nl/dropdown/index.php"+queryString, true);
	ajaxRequest.send(null); 
}