Function Selects or deselects all entries of a multi-dropdown list
Example <img src="../../../icons/select_all.png" …
        onclick="S10DropdownSelectAll(this);">
<img src="../../../icons/sdeelect_all.png" …
        onclick="S10DropdownSelectAll(this, false);">
Parameters
Nr Description
1
Element near the drop-down list
As a rule, "this" is given here, since the function is called on "onclick" of the select icon under the dropdown list.
2
"true" (default) if all elements are to be selected, "false" for de-selection.
Description  The function selects or deselects the entries in a drop-down list.
Details on this in the chapter Multiple selection.
Components S10 Framework