Plain HTML
<html>
<!-- HTML -->
<form
method="post"
action="?entityID=https://aai-demo.switch.ch/shibboleth&return=https://aai-demo.switch.ch/Shibboleth.sso/Login?SAMLDS=1&target=cookie">
<select
name="user_idp">
<option
value="-">
Select the Home Organization you are affiliated with ...
</option>
<!-- Other Home Organzations -->
<option
value="https://aai-demo-idp.switch.ch/idp/shibboleth">
AAI Demo Home Organization (Shibboleth IdP 2.0)
</option>
</select>
<input
type="submit"
name="Select"
value="Select"/>
</form>
<!-- HTML -->
</html>