ServiceNow record producer variables in a business rule

//--new code, RDS Dec2018
g_scratchpad.rp_sysid='';
var producerVars_allVars = new GlideRecord('question_answer');
//var allVars = [];
producerVars_allVars.addQuery('table_sys_id', current.sys_id);
//--Exclude Label and Container variables
producerVars_allVars.addQuery('question.type', '!=', 11);
producerVars_allVars.addQuery('question.type', '!=', 19);
producerVars_allVars.addQuery('question.type', '!=', 20);
//--note: UI Macro is question.type=14
producerVars_allVars.query();
//gs.addInfoMessage(current.producer.sys_id);
while(producerVars_allVars.next()){
//gs.addInfoMessage(producerVars_allVars.question.type + ' ' + producerVars_allVars.question.name.toString()  + ' ' + producerVars_allVars.value.toString());
if (producerVars_allVars.question.name.toString()=='hr_rp_sysid'){
g_scratchpad.rp_sysid=producerVars_allVars.value;

if (producerVars_allVars.value=='4b3a65e7dbce6b007e07db11ce96193c'){
//--some logic here specific to the 'HR Feedback' form:
//--get the 'sysparm_newcase=true' bit of the URL populated via the record producer. there must be a simpler way to do this using glide but couldn't spot it
var completeURL = GlideTransaction.get().getRequest().getHeader("referer");
var matchValArr=completeURL.match("sysparm_newcase=(.*)&").toString().split(',');
var isNewCase = matchValArr[1];
if (isNewCase=='true'){
g_scratchpad.newcase = 'true'; //--passed over to the client script
}
}
break;
}
//allVars.push(producerVars.question.name.toString());
}
//-----