range_trigger_30_40 range_trigger_keyup this 30 40 range_trigger_20_40

range_trigger_30_40() {
    range_trigger_keyup($(this), '30', '40')
}
range_trigger_20_40() {
    range_trigger_keyup($(this), '20', '40')
}

range_trigger_keyup(name, start, stop) {
...
some code
...
}