Button Function Issue

HI, I have successfully created a button on a form before and got it working. have replicated this on another form and its not working! Really stumped on this.

So, in the beforeload event I have the following, and it generates the button fine.

/**

 * @NApiVersion 2.1

 * @NScriptType UserEventScript

 */

 define(['N/runtime','N/record','N/ui/serverWidget'],

    function (runtime,record,serverWidget) {

        var exports = {};

        function beforeLoad(scriptContext) {

            var form = scriptContext.form

            var user = runtime.getCurrentUser()

            var currentRecord = scriptContext.newRecord

            //Get value of department

            var dept = currentRecord.getValue({fieldId: 'department'})

            //If department is not support, then hide the Autotask tab

            if(dept != 2){

                //Hide resource ID