<select class="test" ng-model="tradetype" ng-change=updateAssets() id="chart_menu_dropdown4">
                    <option value="short_term" class="switch_long_term" selected>Lange termijn (15+ min)</option>
                    <option value="short_term" class="switch_short_term">Korte termijn (&lt;15 min)</option>
                </select>