function go()

{

switch (document.getElementById("iHoofdsom").value)

{
case '50000':
   document.getElementById("cPrijs").value="60";
  break
case '100000':
   document.getElementById("cPrijs").value="60";
  break
case '150000':
  document.getElementById("cPrijs").value="60";
  break
case '200000':
   document.getElementById("cPrijs").value="60";
  break
case '250000':
  document.getElementById("cPrijs").value="70";
  break
  case '300000':
   document.getElementById("cPrijs").value="70";
  break
case '350000':
   document.getElementById("cPrijs").value="70";
  break
case '400000':
  document.getElementById("cPrijs").value="70";
  break
case '450000':
   document.getElementById("cPrijs").value="70";
  break
case '500000':
  document.getElementById("cPrijs").value="80";
  break
  case '550000':
   document.getElementById("cPrijs").value="80";
  break
case '600000':
   document.getElementById("cPrijs").value="80";
  break
case '650000':
  document.getElementById("cPrijs").value="80";
  break
case '700000':
   document.getElementById("cPrijs").value="80";
  break
case '750000':
  document.getElementById("cPrijs").value="80";
  break
case '800000':
   document.getElementById("cPrijs").value="80";
  break
case '850000':
  document.getElementById("cPrijs").value="80";
  break
case '900000':
   document.getElementById("cPrijs").value="80";
  break
  case '950000':
   document.getElementById("cPrijs").value="80";
  break
default:

  document.getElementById("cPrijs").value="60";

}

 

}