function isEmpty(Field) {
     if (Field.value == "" || Field.value == null){
      return true;
    }
    return false;
}
function isEmailAddress(emailadress) {
	var regex = /^([a-zA-Z0-9])+([\.a-zA-Z0-9_-])*@([a-zA-Z0-9])+(\.[a-zA-Z0-9_-]+)+$/;
	return regex.test(emailadress);
}
      function isWhitespace (Field)
      {
		  var s;
           var i;
	s=Field.value
           // Is s empty?
           if (isEmpty(s)) return true;

           // Search through string's characters one by one
           // until we find a non-whitespace character.
           // When we do, return false; if we don't, return true.

           for (i = 0; i < s.length; i++)
           {
                // Check that current character isn't whitespace.
                var c = s.charAt(i);

                if (whitespace.indexOf(c) == -1) return false;
           }

           // All characters are whitespace.
           return true;
      }

var a="4";
var b="4.33";
var c="4.66";
var d="5";
var e="5.5";
var f="5.6";
var g="5.8";
var resultaat ="0"

//Maximale Hypotheek

function show(i,ip) {
totaal = Math.round(i)+Math.round(ip);
if (totaal <= 15000){
	resultaat= (totaal * a);}
else if (totaal <= 20000){
	resultaat= (totaal * b);}
else if (totaal <= 25000){
	resultaat= (totaal * c);}
else if (totaal <= 35000){
	resultaat= (totaal * d);}
else if (totaal <= 45000){
	resultaat= (totaal * e);}
else if (totaal <= 55000){
	resultaat= (totaal * f);}
else
resultaat = (totaal * g)
alert("U kunt ongeveer " + resultaat + " euro lenen")
}


var berekenID = null;
function openNewWindow(Type, Url, Opties, Naam, Db, Actie)
{ 
	if( Opties != null )
		{winOpties=Opties;}
	else
		{winOpties="height=600,width=600,left=100,top=20,scrollbars";}
	
	switch(Type) 
	{
		case 'externeLink':
			winLocatie = Url;
			winTitel = Naam;
			break

		case 'berekening':
			if (Actie == null) 
				{Actie ="?opendocument"}
			winLocatie = Db + Naam + Actie + "&id=wuh4759915&segm=wonen";
			winTitel = Naam;
			break
		case 'berekeningpw':
			var locatieNieuw = Db + Naam + "Start?createdocument&id=wuh4759915&segm=wonen";
			var locatieBestaand = Db + "v" + Naam + "Inv/" + berekenID + "?editdocument&id=wuh4759915&segm=wonen";

			if( berekenID != null )
			{ winLocatie = locatieBestaand;}
			else
			{winLocatie = locatieNieuw;}

			winTitel = Naam;
			break
			default:
		}
	
	vaWindow=open(winLocatie, winTitel, winOpties );
	if (vaWindow.opener == null) vaWindow.opener = self;
}


function goto(layer){ var index=layer.select.selectedIndex
 if (layer.select.options[index].value != "0") {  location=layer.select.options[index].value; }}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_findObj(n, d){ //v4.01
  var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length){
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_jumpMenuGo(selName,targ,restore){ //v3.0
  var selObj = MM_findObj(selName);
  if (selObj)
          MM_jumpMenu(targ,selObj,restore);
}