function SwitchSignPrice(){

 document.getElementById('pay_4x2_private').className='hide';
 document.getElementById('pay_4x2_duo').className='hide';
 document.getElementById('pay_8x2_private').className='hide';
 document.getElementById('pay_8x2_duo').className='hide';
 document.getElementById('pay_15x2_private').className='hide';
 document.getElementById('pay_15x2_duo').className='hide';
 
 if(document.getElementById('opleiding').value=='4x2 uur' && document.getElementById('typeopleiding').value=='privé'){
 document.getElementById('pay_4x2_private').className='show';
 }
 if(document.getElementById('opleiding').value=='4x2 uur' && document.getElementById('typeopleiding').value=='met 2 personen'){
 document.getElementById('pay_4x2_duo').className='show';
 }
 
 if(document.getElementById('opleiding').value=='8x2 uur' && document.getElementById('typeopleiding').value=='privé'){
 document.getElementById('pay_8x2_private').className='show';
 }
 if(document.getElementById('opleiding').value=='8x2 uur' && document.getElementById('typeopleiding').value=='met 2 personen'){
 document.getElementById('pay_8x2_duo').className='show';
 }
 
  if(document.getElementById('opleiding').value=='15x2 uur' && document.getElementById('typeopleiding').value=='privé'){
 document.getElementById('pay_15x2_private').className='show';
 }
 if(document.getElementById('opleiding').value=='15x2 uur' && document.getElementById('typeopleiding').value=='met 2 personen'){
 document.getElementById('pay_15x2_duo').className='show';
 }
	
}