function bedragencontrole (frmForm)
{
 var mrg = frmForm.Morragambiet.value
 var wlg = frmForm.Wolgagambiet.value
 var akg = frmForm.AangenomenKoningsgambiet.value  
 var bdg = frmForm.Boedapestergambiet.value	  
 var svg = frmForm.SiciliaansVleugelgambiet.value	  
 var frg = frmForm.Fromgambiet.value	  
 var evg = frmForm.Evansgambiet.value  
 var shg = frmForm.ScharavonHenniggambiet.value  
 var crg = frmForm.Cochranegambiet.value	  
 var jsg = frmForm.JubileumStauntongambiet.value	  
 var grg = frmForm.Goringgambiet.value  
 var blg = frmForm.BlackmarDiemergambiet.value
 var alb = frmForm.Albins.value
 var kgg = frmForm.Koningsgambiet.value
 var blu = frmForm.Blumenfeldgambiet.value

 var tp =  (mrg*5) + (wlg*5) + (akg*5) + (bdg*5) + (svg*5) + (frg*5) +
 	   (evg*5) + (shg*5) + (crg*5) + (jsg*7.5) + (grg*5) + (blg*5) + (alb*5) + (kgg*5) +
	   (blu*5)

 if ( frmForm.Land.value != "Nederland" &&
      frmForm.Land.value != "nederland" &&
      frmForm.Land.value != "Holland" &&
      frmForm.Land.value != "holland" &&
      frmForm.Land.value != ""){ 
      tp = (mrg*5.9) + (wlg*5.9) + (akg*5.9) + (bdg*5.9) + (svg*5.9) + (frg*5.9) + 
 	   (evg*5.9) + (shg*5.9) + (crg*5.9) + (jsg*8.4) + (grg*5.9) + (blg*5.9) + (alb*5.9) + (kgg*5.9) + (blu*5.9)
 	 }

 if (tp > 1){frmForm.Euro.value = "€ " + rondaf(tp)}
 else {alert ("Geen (goede) selectie gambietboekje!")
      frmForm.Euro.value = ""
      document.gambietbestellingen.Morragambiet.focus()
      }

 if (tp >= 40 && tp <= 50) {frmForm.Euro.value = "€ "+rondaf(tp)+" "+"-4"+" "+"="+" " +"€ "+(rondaf(tp-4))}

 if (tp >= 50 && tp <= 100) {frmForm.Euro.value = "€ "+rondaf(tp)+" "+"-6"+" "+"="+" " +"€ "+(rondaf(tp-6))}

 if (tp >= 100) {frmForm.Euro.value = "€ "+rondaf(tp)+" "+"-10"+" "+"="+" " +"€ "+(rondaf(tp-10))}
 }

function rondaf(i)
 {
 i = "" + ((Math.round(i * 100)) / 100);
 dec1 = i.substring(i.length-3, i.length-2);
 dec2 = i.substring(i.length-2, i.length-1);

 if (dec1 != '.') {
 if (dec2 == '.') i += "0";
 else i += ".00";}
 
 return i
 }

 function finalcheck ()
 {
 var nm = document.gambietbestellingen.Naam.value
 var str = document.gambietbestellingen.Straatnaamnummer.value
 var pstc= document.gambietbestellingen.Postcode.value
 var wnp = document.gambietbestellingen.Woonplaats.value
 var ln = document.gambietbestellingen.Land.value
 var pt = document.gambietbestellingen.Euro.value
  
 if (pt==""){
     return false;}
 
 if (nm ==""||                									
    str==""||
    pstc==""||
    wnp==""||
    ln==""){
    alert ("Zonder naam en adresgegevens kunnen wij niets bezorgen.")
 	    document.gambietbestellingen.Naam.focus()
	    return false;}
}