// JavaScript Document
function changePrice(form) { 
if (form.os0.value == '6in') {
   form.amount.value = '8.00';
} else { if (form.os0.value == '7in') {
   form.amount.value = '15.00';
} else { if (form.os0.value == '12in') {
   form.amount.value = '25.00';
} else { if (form.os0.value == '15in') {
   form.amount.value = '45.00';
} else { if (form.os0.value == '24in') {
   form.amount.value = '110.00';
} else { if (form.os0.value == '30in') {
   form.amount.value = '180.00';
} else { if (form.os0.value == '40in') {
   form.amount.value = '220.00';
}}}}}}}
} //end of function