// JavaScript Document
function calculate()
{
	var income = document.frm.income.value;
	var pincome = document.frm.pincome.value;
	var price = document.frm.price.value;
	var loan = 0
	if(document.frm.income.value=="")
	{
		alert("Uw bruto jaarsalaris!");
		document.frm.income.focus();
		return false;
	}
	if(document.frm.price.value=="")
	{
		alert("Koopsom!");
		document.frm.price.focus();
		return false;
	}
	
	for(var i=0; i<income.length; i++)
	{
		if(income.charAt(i)>'9' || income.charAt(i)<'0')
		{
			alert("Alleen cijfers!");
			document.frm.income.focus();
			return false;
		}
	}
	for(var i=0; i<pincome.length; i++)
	{
		if(pincome.charAt(i)>'9' || pincome.charAt(i)<'0')
		{
			alert("Alleen cijfers!");
			document.frm.pincome.focus();
			return false;
		}
	}
	for(var i=0; i<price.length; i++)
	{
		if(price.charAt(i)>'9' || price.charAt(i)<'0')
		{
			alert("Alleen cijfers!");
			document.frm.price.focus();
			return false;
		}
	}
	if(pincome=="")
	{
		pincome = "0";
	}
	var left = (parseFloat(income) + parseFloat(pincome))*5;
	var right = ((((price/100)*85)/100)*125);
	document.frm.loan.value = right;
	if(right<=left)
	{
		MM_setTextOfLayer('result','','<u>Voldoende inkomen</u>');
	}
	else
	{
		MM_setTextOfLayer('result','','<u>Onvoldoende inkomen</u>');
	}
}
////
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function MM_setTextOfLayer(objName,x,newText) { //v4.01

  if ((obj=MM_findObj(objName))!=null) with (obj)

    if (document.layers) {document.write(unescape(newText)); document.close();}

    else innerHTML = unescape(newText);

}