$('select[name="Section"]').on('input', function() { code example

Example 1: jquery select by name

element = $('input[name="element_name"]');

Example 2: jquery get eklement by name

$('td[name ="tcol1"]')   // matches exactly 'tcol1'
$('td[name^="tcol"]' )   // matches those that begin with 'tcol'
$('td[name$="tcol"]' )   // matches those that end with 'tcol'
$('td[name*="tcol"]' )   // matches those that contain 'tcol'