function paymentOption(c,a,b){this.id=c;this.payment_option=a;this.price=b}function paymentGroup(c,b,a){this.id=c;this.payment_group=b;this.options=a.split(",")}function updateItemValues(a,b){a.amount.value=paymentOptions[b].price;a.item_name.value=(paymentOptions[b].payment_option).replace(/&quot;/g,'"')}var paymentOptions=new Object();paymentOptions[40634]=new paymentOption(40634,"Softcover","20.00");paymentOptions[55483]=new paymentOption(55483,"Mind donation print, 12&quot; x 8&quot; (all profits go to charity)","14.99");paymentOptions[55484]=new paymentOption(55484,"Mind donation print, 18&quot; x 12&quot; (all profits go to charity)","24.99");paymentOptions[40635]=new paymentOption(40635,"Hardcover (dust jacket)","30.00");paymentOptions[25489]=new paymentOption(25489,"medium print, 12&quot; x 8&quot;","14.99");paymentOptions[25491]=new paymentOption(25491,"large print, 18&quot; x 12&quot;","24.99");var paymentGroups=new Object();paymentGroups[12571]=new paymentGroup(12571,"Book","40634,40635");paymentGroups[7793]=new paymentGroup(7793,"Limited edition prints","55483,55484");function getPaymentOptions(a){var b="";if(paymentGroups[a].options[0]!=""){for(var c in paymentGroups[a].options){paymentOption=paymentOptions[paymentGroups[a].options[c]];b=b+'<option  value="'+paymentOption.id+'">'+paymentOption.payment_option+" - 				&pound;"+paymentOption.price+"</option>"}}return b};