function antispamwebinfo()
{
var UeFNeYXh=["105","110","102","111","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108"];
var VNCAfFUO=["105","110","102","111","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108"];
document.write("<a href='&#109;&#97;&#105;&#108;&#00116;&#00111;&#58;");
for (i=0; i<UeFNeYXh.length; i++) document.write("&#"+UeFNeYXh[i]+";");
document.write("'>");
for (i=0; i<VNCAfFUO.length; i++) document.write("&#"+VNCAfFUO[i]+";");
document.write('</a>');
}

function antispamwebarjan()
{
var ZLEzfJwx=["97","46","100","101","107","111","110","105","110","103","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
var cSfQQndF=["97","46","100","101","107","111","110","105","110","103","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
document.write("<a href='&#109;&#97;&#105;&#108;&#00116;&#00111;&#58;");
for (i=0; i<ZLEzfJwx.length; i++) document.write("&#"+ZLEzfJwx[i]+";");
document.write("'>");
for (i=0; i<cSfQQndF.length; i++) document.write("&#"+cSfQQndF[i]+";");
document.write('</a>');
}

function antispamweborder()
{
var EffMimRp=["111","114","100","101","114","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
var cprBIJJh=["111","114","100","101","114","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
document.write("<a href='&#109;&#97;&#105;&#108;&#00116;&#00111;&#58;");
for (i=0; i<EffMimRp.length; i++) document.write("&#"+EffMimRp[i]+";");
document.write("'>");
for (i=0; i<cprBIJJh.length; i++) document.write("&#"+cprBIJJh[i]+";");
document.write('</a>');
}

function antispamwebschrijver()
{
var yIEqyFNQ=["114","46","101","46","115","99","104","114","105","106","118","101","114","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
var mjNekIOI=["114","46","101","46","115","99","104","114","105","106","118","101","114","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
document.write("<a href='&#109;&#97;&#105;&#108;&#00116;&#00111;&#58;");
for (i=0; i<yIEqyFNQ.length; i++) document.write("&#"+yIEqyFNQ[i]+";");
document.write("'>");
for (i=0; i<mjNekIOI.length; i++) document.write("&#"+mjNekIOI[i]+";");
document.write('</a>');
}

function antispamwebjjdekoning()
{
var lsiZcYLn=["106","46","106","46","100","101","46","107","111","110","105","110","103","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
var ESIDwuix=["106","46","106","46","100","101","46","107","111","110","105","110","103","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
document.write("<a href='&#109;&#97;&#105;&#108;&#00116;&#00111;&#58;");
for (i=0; i<lsiZcYLn.length; i++) document.write("&#"+lsiZcYLn[i]+";");
document.write("'>");
for (i=0; i<ESIDwuix.length; i++) document.write("&#"+ESIDwuix[i]+";");
document.write('</a>');
}

function antispamwebcor()
{
var MhHVoHfX=["99","46","100","101","106","111","110","103","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
var uqcBUMlr=["99","46","100","101","106","111","110","103","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
document.write("<a href='&#109;&#97;&#105;&#108;&#00116;&#00111;&#58;");
for (i=0; i<MhHVoHfX.length; i++) document.write("&#"+MhHVoHfX[i]+";");
document.write("'>");
for (i=0; i<uqcBUMlr.length; i++) document.write("&#"+uqcBUMlr[i]+";");
document.write('</a>');
}

function antispamwebrd()
{
var NeqLGINR=["114","101","115","101","97","114","99","104","46","100","101","118","101","108","101","111","112","109","101","110","116","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
var KiZJkpqa=["114","101","115","101","97","114","99","104","46","100","101","118","101","108","101","111","112","109","101","110","116","64","100","101","107","111","110","105","110","103","118","108","101","101","115","46","110","108","32"];
document.write("<a href='&#109;&#97;&#105;&#108;&#00116;&#00111;&#58;");
for (i=0; i<NeqLGINR.length; i++) document.write("&#"+NeqLGINR[i]+";");
document.write("'>");
for (i=0; i<KiZJkpqa.length; i++) document.write("&#"+KiZJkpqa[i]+";");
document.write('</a>');
}


function Select(tab){
	
	document.getElementById('terug_knop').style.display = "block";
	document.getElementById('verder_knop').style.display = "block";	

	if(tab == "contact"){
		document.getElementById('terug_knop').style.display = "none";		
	}
	if(tab == "verstuur"){
		document.getElementById('verder_knop').style.display = "none";		
	}
	
	document.getElementById('content_' + current_tab).style.display = "none";
	document.getElementById('content_' + tab).style.display = "block";
	
	if (document.getElementById(current_tab).className == "menu_error current"){
		document.getElementById(current_tab).className = "menu_error";
	}
	else {
		document.getElementById(current_tab).className = "";
	}
	document.getElementById(tab).className = document.getElementById(tab).className + " current";
	
	current_tab = tab;

}

function Selecteng(tab){
	
	document.getElementById('terug_knop_en').style.display = "block";
	document.getElementById('verder_knop_en').style.display = "block";	

	if(tab == "contact_en"){
		document.getElementById('terug_knop_en').style.display = "none";		
	}
	if(tab == "verstuur_en"){
		document.getElementById('verder_knop_en').style.display = "none";		
	}
	
	document.getElementById('content_' + current_tab).style.display = "none";
	document.getElementById('content_' + tab).style.display = "block";
	
	if (document.getElementById(current_tab).className == "menu_error current"){
		document.getElementById(current_tab).className = "menu_error";
	}
	else {
		document.getElementById(current_tab).className = "";
	}
	document.getElementById(tab).className = document.getElementById(tab).className + " current";
	
	current_tab = tab;

}

function Tabs(direction){

	if(direction == "verder"){
		switch (current_tab){
			
			case "contact" :
				show_tab = "ontwerp"; break;
			case "ontwerp" :
				show_tab = "afstromende"; break;
			case "afstromende" :
				show_tab = "stelsel"; break;
			case "stelsel" :
				show_tab = "piekbelasting"; break;
			case "piekbelasting" :
				show_tab = "toevoeging"; break;
			case "toevoeging" :
				show_tab = "lozing"; break;
			case "lozing" :
				show_tab = "slib"; break;
			case "slib" :
				show_tab = "optioneel"; break;
			case "optioneel" :
				show_tab = "maatvoering"; break;
			case "maatvoering" :
				show_tab = "weergave"; break;
			case "weergave" :
				show_tab = "verstuur"; break;
			
		}
	}
	else if (direction == "terug"){
		switch (current_tab){
			
			case "ontwerp" :
				show_tab = "contact"; break;
			case "afstromende" :
				show_tab = "ontwerp"; break;
			case "stelsel" :
				show_tab = "afstromende"; break;
			case "piekbelasting" :
				show_tab = "stelsel"; break;
			case "toevoeging" :
				show_tab = "piekbelasting"; break;
			case "lozing" :
				show_tab = "toevoeging"; break;
			case "slib" :
				show_tab = "lozing"; break;
			case "optioneel" :
				show_tab = "slib"; break;
			case "maatvoering" :
				show_tab = "optioneel"; break;
			case "weergave" :
				show_tab = "maatvoering"; break;
			case "verstuur" :
				show_tab = "weergave"; break;
		}
	}
	
	Select(show_tab);

}


function Tabseng(direction){

	if(direction == "verder"){
		switch (current_tab){
			
			case "contact_en" :
				show_tab = "ontwerp_en"; break;
			case "ontwerp_en" :
				show_tab = "afstromende_en"; break;
			case "afstromende_en" :
				show_tab = "stelsel_en"; break;
			case "stelsel_en" :
				show_tab = "piekbelasting_en"; break;
			case "piekbelasting_en" :
				show_tab = "toevoeging_en"; break;
			case "toevoeging_en" :
				show_tab = "lozing_en"; break;
			case "lozing_en" :
				show_tab = "slib_en"; break;
			case "slib_en" :
				show_tab = "optioneel_en"; break;
			case "optioneel_en" :
				show_tab = "maatvoering_en"; break;
			case "maatvoering_en" :
				show_tab = "weergave_en"; break;
			case "weergave_en" :
				show_tab = "verstuur_en"; break;
			
		}
	}
	else if (direction == "terug"){
		switch (current_tab){
			
			case "ontwerp_en" :
				show_tab = "contact_en"; break;
			case "afstromende_en" :
				show_tab = "ontwerp_en"; break;
			case "stelsel_en" :
				show_tab = "afstromende_en"; break;
			case "piekbelasting_en" :
				show_tab = "stelsel_en"; break;
			case "toevoeging_en" :
				show_tab = "piekbelasting_en"; break;
			case "lozing_en" :
				show_tab = "toevoeging_en"; break;
			case "slib_en" :
				show_tab = "lozing_en"; break;
			case "optioneel_en" :
				show_tab = "slib_en"; break;
			case "maatvoering_en" :
				show_tab = "optioneel_en"; break;
			case "weergave_en" :
				show_tab = "maatvoering_en"; break;
			case "verstuur_en" :
				show_tab = "weergave_en"; break;
		}
	}
	
	Selecteng(show_tab);

}

function Create3D(HA){
	
	HA = HA.replace(",", ".");
	
	if(HA < 0.21){
		var pakket_nr = 0;
	}
	else if (HA > 0.21 && HA < 0.36){
		var pakket_nr = 1;
	}
	else if (HA > 0.36 && HA < 0.71){
		var pakket_nr = 2;
	}
	else if (HA > 0.71 && HA < 1.07){
		var pakket_nr = 2;
	}
	else if (HA > 1.07 && HA < 1.43){
		var pakket_nr = 2;
	}
	else if (HA > 1.43 && HA < 2.14){
		var pakket_nr = 3;
	}
	else if (HA > 2.14 && HA < 2.86){
		var pakket_nr = 4;
	}
	else if (HA > 2.86 && HA < 3.57){
		var pakket_nr = 5;
	}
	else if (HA > 3.57 && HA < 4.64){
		var pakket_nr = 7;
	}
	else if (HA > 4.64 && HA < 5.71){
		var pakket_nr = 7;
	}
	else if (HA > 5.71&& HA < 7.14){
		var pakket_nr = 8;
	}
	else if (HA > 7.14 && HA < 8.92){
		var pakket_nr = 8;
	}
	else if (HA > 8.92 && HA < 10.71){
		var pakket_nr = 9;
	}
	else {
		var pakket_nr = 0;
	}
	
	document.getElementById('ns_anders').style.display = "none";
	document.getElementById('ns3').style.display = "none";
	document.getElementById('ns5').style.display = "none";
		
	if (pakket_nr == 0){
		document.getElementById('ns3').style.display = "block";
	}
	else if (pakket_nr == 1){
		document.getElementById('ns5').style.display = "block";
	}
	else {
		document.getElementById('ns_anders').style.display = "block";
		
		var startput_left = 47;
		var startput_top = 19;
		
		var startuitlaat_left = 659;
		var startuitlaat_top = 227;
		
		var startinlaat_left = 115;
		var startinlaat_top = 192;
		
		var startgrof_left = 194;
		var startgrof_top = 137;
		
		var startopzetstuk_left = 115;
		var startopzetstuk_top = 102;
		
		var startflow_left = 49;
		var startflow_top = 167;
		
		var startmargin_left = 46;
		var startmargin_top = 37;
		
		var opsch_margin_left = 11;
		var opsch_margin_top = 11;

		var slib = "none";
		document.getElementById('opzetstuk').style.display = "none";
		document.getElementById('grofvuilrooster').style.display = "none";
		
		if(document.getElementById('form_opzetstuk').value == "Ja"){
			document.getElementById('opzetstuk').style.display = "block";
		}
		if(document.getElementById('form_grofvuilrooster').value == "Ja"){
			document.getElementById('grofvuilrooster').style.display = "block";
		}
		
		
		for (var i = pakket_nr+1; i <= 9; i++){
			document.getElementById('pakket_' + i).style.display = "none";
		}
				
		helft = Math.round(pakket_nr/2);
		document.getElementById('uitlaat').style.marginLeft = (opsch_margin_left + startuitlaat_left-(opsch_margin_left * (pakket_nr/2))) + "px";
		document.getElementById('uitlaat').style.marginTop = (startuitlaat_top+(opsch_margin_top * (pakket_nr/2))-opsch_margin_top) + "px";
		
		document.getElementById('inlaat').style.marginLeft = (opsch_margin_left + startinlaat_left-(opsch_margin_left * (pakket_nr/2))) + "px";
		document.getElementById('inlaat').style.marginTop = (startinlaat_top+(opsch_margin_top * (pakket_nr/2))-opsch_margin_top) + "px";
		
		document.getElementById('put').style.marginLeft = (opsch_margin_left + startput_left-(opsch_margin_left * (pakket_nr/2))) + "px";
		document.getElementById('put').style.marginTop = (startput_top+(opsch_margin_top * (pakket_nr/2))-opsch_margin_top) + "px";
		
		document.getElementById('grofvuilrooster').style.marginLeft = (opsch_margin_left + startgrof_left-(opsch_margin_left * (pakket_nr/2))) + "px";
		document.getElementById('grofvuilrooster').style.marginTop = (startgrof_top+(opsch_margin_top * (pakket_nr/2))-opsch_margin_top) + "px";
		
		document.getElementById('opzetstuk').style.marginLeft = (opsch_margin_left + startopzetstuk_left-(opsch_margin_left * (pakket_nr/2))) + "px";
		document.getElementById('opzetstuk').style.marginTop = (startopzetstuk_top+(opsch_margin_top * (pakket_nr/2))-opsch_margin_top) + "px";
		
		document.getElementById('flow').style.marginLeft = (opsch_margin_left + startflow_left-(opsch_margin_left * pakket_nr)) + "px";
		document.getElementById('flow').style.marginTop = (startflow_top+(opsch_margin_top * pakket_nr)-opsch_margin_top) + "px";
		
		for (var x = 2; x <= pakket_nr; x++){
			
			document.getElementById('slib_' + x).style.display = "none";

			document.getElementById('pakket_' + x).style.display = "block";
			document.getElementById('pakket_' + x).style.marginLeft = (opsch_margin_left + startmargin_left-(opsch_margin_left * x)) + "px";
			document.getElementById('pakket_' + x).style.marginTop = (startmargin_top+(opsch_margin_top * x)-opsch_margin_top) + "px";

			if (x == helft){
				document.getElementById('slib_' + x).style.display = slib;
			}
			
			if (x-2 > helft){
				document.getElementById('gras_' + x).style.display = "none";
			}
		}
	}
}

function ShowSlibExtra(value){
	if(value == "MAS NS-M slibruimte"){
		document.getElementById('slib_extra').style.display = "block";
	}
	else {
		document.getElementById('slib_extra').style.display = "none";
	}
}				

function BerekenSlib(){
	var value = document.getElementById('form_ha').value;
	var value = value.replace(",",".");
	var value1 = document.getElementById('form_slib_extra1').value;
	var value2 = document.getElementById('form_slib_extra2').value;
	var value3 = document.getElementById('form_slib_extra3').value;		

	var temp_out = (value*value1)/value2;
	var temp_out = temp_out / value3;
	
	if (temp_out == 0 || isNaN(temp_out) || !IsNumeric(value.replace(",",".")) || temp_out == "Infinity"){
		document.getElementById('slib_extra_volume2').value = "nog niet alles (correct)ingevuld";	
	}
	else {
		document.getElementById('slib_extra_volume2').value = temp_out;
		document.getElementById('slib_extra_volume').value = temp_out;			
	}
}

function IsNumeric(sText){
	var ValidChars = "0123456789.";
	var IsNumber=true;
	var Char;
	
	for (i = 0; i < sText.length && IsNumber == true; i++){ 
		Char = sText.charAt(i); 
		if (ValidChars.indexOf(Char) == -1){
			IsNumber = false;
		}
	}
	return IsNumber;
}