////////////// POPUP GEDEELTE /////////////////
function toggle(div_id) {
	var el = document.getElementById(div_id);
	if ( el.style.display == 'none' ) {	el.style.display = 'block';}
	else {el.style.display = 'none';}
}
function blanket_size(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportheight = window.innerHeight;
	} else {
		viewportheight = document.documentElement.clientHeight;
	}
	if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
		blanket_height = viewportheight;
	} else {
		if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
			blanket_height = document.body.parentNode.clientHeight;
		} else {
			blanket_height = document.body.parentNode.scrollHeight;
		}
	}
	var blanket = document.getElementById('blanket');
	blanket.style.height = blanket_height + 'px';
	var popUpDiv = document.getElementById(popUpDivVar);
	popUpDiv_height=blanket_height/2-150; //150 is half popups height
	popUpDiv.style.top = popUpDiv_height + 'px';
}
function window_pos(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportwidth = window.innerHeight;
	} else {
		viewportwidth = document.documentElement.clientHeight;
	}
	if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
		window_width = viewportwidth;
	} else {
		if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
			window_width = document.body.parentNode.clientWidth;
		} else {
			window_width = document.body.parentNode.scrollWidth;
		}
	}
	var popUpDiv = document.getElementById(popUpDivVar);
	window_width=window_width/2-150;//150 is half popups width
	popUpDiv.style.left = window_width + 'px';
}
function popup(windowname) {
	blanket_size(windowname);
	window_pos(windowname);
	toggle('blanket');
	toggle(windowname);		
}




/////////////// AJAX GEDEELTE ///////////////////
function createXMLHttpRequest() {
	if (window.ActiveXObject) {
		xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	} 
	else if (window.XMLHttpRequest) {
		xmlHttp = new XMLHttpRequest();
	}
}

function processAjax() {
	
	createXMLHttpRequest();
	
	if ((IsNumeric(document.form1.pc.value) == false) || (document.form1.pc.value == '')){
	
	var url = "pop_steden_ajax.asp";

	query = ''
	query = query + 'pc='+document.form1.pc.value;
	query = query + '&lnd='+document.getElementById('lnd').value;
	
	xmlHttp.open("POST", url, true);
	xmlHttp.onreadystatechange = handleStateChange;
	xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");    
	xmlHttp.send(query);
	}
	else{
	//form doorsturen	
	varlnd = document.getElementById('lnd').value;
	varpc = document.form1.pc.value;
	varafstand = document.getElementById('afstand').value
	
	vartpr = document.getElementById('tpr').value;
	varpr = document.getElementById('pr').value;
	varpos = document.getElementById('pos').value;
	location.href='index.asp?lnd='+varlnd+'&pc='+varpc+'&afstand='+varafstand+'&tpr='+vartpr+'&pr='+varpr+'&pos='+varpos
	//alert('index.asp?lnd='+varlnd+'&pc='+varpc+'&afstand='+varafstand+'&tpr='+vartpr+'&pr='+varpr+'&pos='+varpos)
	
	}
}


function handleStateChange() {
	if (xmlHttp.readyState == 4) { // Complete
		if (xmlHttp.status == 200) { // OK response
			
			if(xmlHttp.responseText == 'ok'){
				document.location = 'ok.asp'
				}
			else{
				document.getElementById("popUpDiv").innerHTML = xmlHttp.responseText;
				popup('popUpDiv');
				}
			
		} else {
			alert("Problem: " + xmlHttp.statusText);
		}
	}
	else
	{
		document.getElementById("popUpDiv").innerHTML = "<b>sending...</b>"
	}
} 


//Enter-key blokkeren
function stopRKey(evt) {
	var evt  = (evt) ? evt : ((event) ? event : null);
	var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
	if ((evt.keyCode == 13) && (node.type=="text")) { return false; }
}
document.onkeypress = stopRKey;


									

										
/////////////// DATA DOORSTUREN //////////////

function GeefPostcodeTerug() {
  document.form1.pc.value = document.formPC.pcKeuze.value;
  for (var i=0; i < document.formPC.pcKeuze.length; i++)
	 {
	 if (document.formPC.pcKeuze[i].checked)
		{
		document.form1.pc.value = document.formPC.pcKeuze[i].value;
		}
	 }
}