//controle op ie of andere browser; aanmaken van xmlhttp object
var div_to_use;
function makeObject()
{
	var x;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer")
		x = new ActiveXObject("Microsoft.XMLHTTP");
	else
		x = new XMLHttpRequest();
	return x;
}
//afhandelen van de onchange; "openen" van de aangemaakte url
//de url wordt gevolgd vanaf de pagina waar deze code wordt gėimplementeerd!
//Ophalen van de VALUE uit de ddl: document.formnaam.selectnaam.options[document.formnaam.selectnaam.options.selectedIndex].value
var request = makeObject();


function update(current_value,php_page,div_id)
{
	div_to_use=div_id;
	request.open('get', php_page);
	request.onreadystatechange = parseInfo;
	request.send('');
}

//waarden die teruggestuurd worden uit de .php; stap 4 vervangt de inhoud my_div met de echo's uit de .php
function parseInfo()
{
	if(request.readyState == 1)
	{
		//alert(div_to_use);
		document.getElementById(div_to_use).innerHTML = 'Loading...';
	}
	if(request.readyState == 4)
	{
		var answer = request.responseText;
		document.getElementById(div_to_use).innerHTML = answer;
	}
}


function Update_Postnr(value,ID)
{
request.open('get', 'Ajax_Submit_Postnr.php?Postnr_Update=1&ID='+ID+'&Postnr='+value);
request.onreadystatechange = Update_Postnr_OK;
request.send('');
}

function Update_Postnr_OK()
{
	if(request.readyState == 1)
	{
	}
	if(request.readyState == 4)
	{
	}
}



function Update_Van(value,ID)
{
request.open('get', 'Ajax_Submit_Van.php?Van_Update=1&ID='+ID+'&Van='+value);
request.onreadystatechange = Update_Postnr_OK;
request.send('');
}

function Update_Postnr_OK()
{
	if(request.readyState == 1)
	{
	}
	if(request.readyState == 4)
	{
	}
}

function typeAhead(objectPlace,order)
{
	if(objectPlace.value!='')
	{
		requestedData = objectPlace.value +" # "+order;
	}
	else
		requestedData=' ';
	fetchData('Getdealers.php',requestedData,'dealertabel');
} 
function filterData(pageRequest,objectID)
{
	var objectResults = document.getElementById(objectID);
	if(pageRequest.readyState == 1)
	{
		objectResults.innerHTML = 'Loading...';
	}
	if(pageRequest.readyState == 4)
	{
		objectResults.innerHTML = pageRequest.responseText;
	}
}
function fetchData(url,dataRequested,objectID)
{
	if (dataRequested)
		var dataRequest = "dataRequest="+ dataRequested;
	var pageRequest = false
	if (window.XMLHttpRequest)
	{
		pageRequest = new XMLHttpRequest()
	}
	else if (window.ActiveXObject)
	{ 
		try
		{
			pageRequest = new ActiveXObject("Msxml2.XMLHTTP")
		} 
		catch (e)
		{
			try
			{
				pageRequest = new ActiveXObject("Microsoft.XMLHTTP")
			}
			catch (e){}
		}
	}
	else
		return false
	pageRequest.onreadystatechange=function() 
	{
		filterData(pageRequest,objectID)
	}
	if (dataRequested) {
		pageRequest.open('POST', url, true);
		pageRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		pageRequest.send(dataRequest);
	}
	else
	{
		pageRequest.open('GET', url, true);
		pageRequest.send(null)	
	}
}