function updatePriceFieldsFromCommission(){
	var commission= parseInt(document.forms['shop_product_setup'].elements['commission'].value);
	var shopPriceEx=parseInt(document.forms['shop_product_setup'].elements['priceBase'].value)+commission;
	var shopPriceInc= (shopPriceEx*1.25);
	document.forms['shop_product_setup'].elements['priceShopEx'].disabled=false;
	document.forms['shop_product_setup'].elements['priceShopEx'].value=shopPriceEx;
	document.forms['shop_product_setup'].elements['priceShopEx'].disabled=true;

	document.forms['shop_product_setup'].elements['priceShopInc'].value=shopPriceInc;
}

function updatePriceFieldsFromPriceIncVAT(){
	var shopPriceInc= parseInt(document.forms['shop_product_setup'].elements['priceShopInc'].value);
	var shopPriceEx=shopPriceInc*0.8;
	var basePrice=parseInt(document.forms['shop_product_setup'].elements['priceBase'].value);
	var commission=shopPriceEx-basePrice


	document.forms['shop_product_setup'].elements['priceShopEx'].disabled=false;
	document.forms['shop_product_setup'].elements['priceShopEx'].value=shopPriceEx;
	document.forms['shop_product_setup'].elements['priceShopEx'].disabled=true;
	document.forms['shop_product_setup'].elements['commission'].value=commission;
}