+ $('#maninvoice').preventDoubleFormSubmit();
+ $("fieldset.rows input, fieldset.rows select").addClass("noEnterSubmit");
+ $("#invoice_type").on("change",function(){
+ this.form.desc.value = this.options[this.selectedIndex].value;
+ this.form.amount.value = type_fees[this.options[this.selectedIndex].value];
+ });