var intFormGroupIndex = 1
// -------------------------------------------------------------------------------------------
// SUBMIT CONTACTFORM
// -------------------------------------------------------------------------------------------
function submitOfferteForm()
{
   if (Validate('offerteform', 2)) 
   {
      document.offerteform.submit()
   }

}

function submitOfferteAanvraagForm() {
    if (Validate('OfferteAanvraag')) {
        document.OfferteAanvraag.submit()
    }
    
}

// -------------------------------------------------------------------------------------------


function createSurface()
{
 if(document.getElementById('lenght').value.length > 0 && document.getElementById('widht').value.length > 0)
 {
 document.getElementById('surface').value = (document.getElementById('lenght').value * document.getElementById('widht').value)
 }
}



function previousPage()
{
   Hide('group' + intFormGroupIndex, true);
   intFormGroupIndex--;
   Show('group' + intFormGroupIndex, true);
}

function nextPage()
{
   if (Validate('offerteform', intFormGroupIndex))
   {
      Hide('group' + intFormGroupIndex, true);
      intFormGroupIndex++;
      Show('group' + intFormGroupIndex, true);
   }
}