JS 代码如下，如何做到选择fields[0]或fields[1]时禁用“fd_gclx”？

scriptfunction changeHotelEnabled(){ var fields = GetXFormFieldById("fd_fklx"); if(fields.length==0) return; GetXFormFieldById("fd_gclx")[0].disabled = fields[0].checked; GetXFormFieldById("fd_gclx")[1].disabled = fields[0].checked; }Com_AddEventListener(window, "load", changeHotelEnabled);AttachXFormValueChangeEventById("fd_fklx", changeHotelEnabled);/script