update docs

docs/30_Page/20_Navigation.md

@@ -72,4 +72,20 @@ $aReplace['{{NAVI_LEFT}}']=''
         'nav', ['class'=>'mt-2'],
         $renderAdminLTE->getSidebarNavigation($aSidebarNav)
     );
-```
\ No newline at end of file
+```
+
+### Navigation hacks
+
+#### Sidebar
+
+To render a horizontal line in the sidebar menu, add a navigation item with label '-'
+
+```php
+$aSidebarNav[]=['href'=>'#', 'label'=>'-'];
+```
+
+In your css file add a rule:
+
+```css
+.nav-item hr{color: #505860; border-top: 1px solid; height: 1px; padding: 0; margin: 0; }
+```

docs/50_Forms/Select.md

+## Select
+
+Draw aselect box with option fields
+
+### Syntax
+
+```php
+$renderAdminLTE->getFormSelect($aOptions);
+```
+
+### Return
+
+{string} html code
+
+### Parameters
+
+* $aOptions - {array} options to describe the element
+
+Option fields:
+
+Key      | Description
+---      | ---
+options  | List of option tags<br> - value   - value in the option<br> - label   - visible text in the option<br>other keys are attributes in the option
+
+Styling for select tag:
+
+Key      | Description
+---      | ---
+class    | optional: additional css classes
+size     | optional: visible option lines
+
+Content:
+
+Key      | Description
+---      | ---
+name     | name attribute for sending form data
+value    | value of the input field/ visible text; for checkbox and radio: the data to send when sending a form
+
+### Example
+
+#### Simple select box
+
+```php
+$renderAdminLTE->getFormSelect(array
+(
+    'label' => 'Select contact',
+    'name' => 'contact',
+    'tag' => 'select',
+    'size' => 1,
+    'options' => [
+            ['value' => '',  'label' => 'select'],
+            ['value' => '1', 'label' => 'Tom'],
+            ['value' => '2', 'label' => 'Dick', 'selected' => 1 ],
+            ['value' => '3', 'label' => 'Harry'],
+    ],
+));
+```
+
+You get a label, an select box wrapped in a ``<div class="form-group row">``.
+
+```html
+<div class="form-group row">
+    <label for="contact-39c4c14176af359d95e81c45078f27f3" class="col-sm-2 col-form-label">Select contact</label>
+    <div class="col-sm-10">
+        <div class="form-group">
+            <select name="contact" tag="select" size="1" class="form-control ">
+                <option value="">select</option>
+                <option value="1">Tom</option>
+                <option value="2" selected="1">Dick</option>
+                <option value="3">Harry</option>
+            </select>
+        </div>
+    </div>
+</div>
+```