KB43904 - Insert pop-up message between primary and secondary authentication.

1. Download a copy of sample custom sign-in page zip file from the admin GUI and extract.
2. Locate the LoginPage.thtml and add onclick="alert()" after the initial input.
3. Once the page is edited, zip only the files and upload in the appliance through admin GUI and assign to the desired sign-in page.

Default HTML Code:

<input id="btnSubmit_6" type="submit" value="<% signin %>" name="btnSubmit">&nbsp;
    <% IF help_on %>
    <input id="help_3" type='submit' name='help' value="<% help %>"
    onclick='window.open("welcome.cgi?p=help", "wndHelp", "height=400,width=500,resizeable=yes,scrollbars=yes"); return false;'>
    <% END %>

Sample HTML Code:

<input id="btnSubmit_6" type="submit" value="<% signin %>"  onclick="alert('Sample Text')" name="btnSubmit">&nbsp;
     <% IF help_on %>
     <input id="help_3" type='submit' name='help' value="<% help %>"
     onclick='window.open("welcome.cgi?p=help", "wndHelp", "height=400,width=500,resizeable=yes,scrollbars=yes"); return false;'>
     <% END %>

Result:

Accessing through Chrome Browser:

Accessing through Internet Explorer:

• KB21063 - [Sign In Pages] How to customize text on sign-in page
• KB40321 - How to change default labels on sign-in page using custom sign-in pages
• KB22273 - [Sign In Pages] Changing the custom sign-in page with simple HTML code