How do I click a button with a changing name?

[sceiler]

Hello,

I am new to Autoit and I want to automatically select a specific button, then click a specific button opened in a new window, fill out a form and send the form.

Here is the page: http://www.buchsys.de/mannheim/angebote/aktueller_zeitraum/_Badminton_fuer_Sie___Ihn.html

It is for my university where we can book or reserve badminton courts. I am only interested in the green buttons as the orange ones are not possible to book.

Example:

On the table Mittwoch 16:00 - 17:00 on the second row is a green button. I found out with firebug that the button name="BS_Kursid_29759" . My problem is, how do I select this button which changes every week? If I have got this then I believe it shouldnt be a big problem to do the rest.

#include <IE.au3>

$IE = _IECreate("www.google.de")

$Button = _IEGetObjByName ($IE, "btnG")

_IEAction($Button,"click")

Is my code until now.

[somdcomputerguy]

Does the id of the button change?

[Exit]

#include <IE.au3>
$oIE = _IECreate("http://www.buchsys.de/mannheim/angebote/aktueller_zeitraum/_Badminton_fuer_Sie___Ihn.html")
$oElements = _IETagNameGetCollection($oIE, "Input")
For $oElement In $oElements
    ConsoleWrite("Tagname: " & $oElement.tagname & @LF & "    Outerhtml: " & $oElement.outerhtml & @LF)
    If StringInStr($oElement.outerhtml, "buchen") Then ExitLoop _IEAction($oElement, "click")
Next
_IEQuit($oIE)
ConsoleWrite("*************************" & @LF)
WinWait("Anmeldung", "", 10)
$oIE = _IEAttach("Anmeldung")
$oElements = _IETagNameGetCollection($oIE, "Input")
For $oElement In $oElements
    ConsoleWrite("Tagname: " & $oElement.tagname & @LF & "    Outerhtml: " & $oElement.outerhtml & @LF)
    If StringInStr($oElement.outerhtml, "buchen") Then ExitLoop _IEAction($oElement, "click")
Next
ConsoleWrite("*************************" & @LF)
$oElements = _IETagNameAllGetCollection($oIE)
For $oElement In $oElements
    Switch $oElement.tagname
        Case "INPUT"
            ConsoleWrite("Tagname: " & $oElement.tagname & @LF & "    Outerhtml: " & $oElement.outerhtml & @LF)
            If StringInStr($oElement.outerhtml, ' name="sex" value="M" ') Then _IEAction($oElement, "click")
            If StringInStr($oElement.outerhtml, ' name="vorname" ') Then _IEPropertySet($oElement, "innertext", "Donald")
            If StringInStr($oElement.outerhtml, ' name="name" ') Then _IEPropertySet($oElement, "innertext", "Duck")
            If StringInStr($oElement.outerhtml, ' name="email" ') Then _IEPropertySet($oElement, "innertext", "Somebody@gmx.de")
            If StringInStr($oElement.outerhtml, ' name="telefon" ') Then _IEPropertySet($oElement, "innertext", "089/47110815")
            ; and here some more to fill.  ;-)
        Case "SELECT"
            ConsoleWrite("Tagname: " & $oElement.tagname & @LF & "    Outerhtml: " & StringReplace($oElement.outerhtml, "<option value=", @LF & @TAB & @TAB & "<option value=") & @LF)
            _IEFormElementOptionselect($oElement, "S-POP")
    EndSwitch
Next

Edited February 28, 2013 by Exit