If/Else Variable

I am creating a new field and variable via scripting as part of an if/else statement but am unable to reference the initial variable after the Else clause.  It keeps returning it as undefined.  Thoughts?

 function equipmentPMList(request, response)  {      if ( request.getMethod() == 'GET' )      {           var form = nlapiCreateForm('Select Equipment for PM FSR Creation');                     <strong> form.addField('servicedate', 'date', 'Service Date');</strong>           //var ServiceDate = nlapiSetFieldValue(                      var sublist = form.addSubList('sublist','list', 'Equipment Selection');           sublist.addField('sublistequipid', 'text', 'Internal ID');  ...           // set search filters for equipment list search        var filters = new Array();                var CustID = request.getParameter('cust');        var CustName = request.getParameter('custname');                  // against equipment record, search for a specific customer        filters [0] = new nlobjSearchFilter('custrecord6', null, 'is', CustID);          // set search return columns for equipment list search        var columns = new Array();        columns[0] = new nlobjSearchColumn('id', null, null);  ...