Based on multiple criterias on parent's siblings - xpath

Question

I would like to know if I can combine at the same time an XPath looking for the previous sibling of a certain class with a certain text and at the same time a sibling at the same level with a certain text.
For example I would like to find the following cells:
<td class="sdawatt_booknow">Book</td>
by looking up a sibling of class sdawatt_hrdcell containing the text Spin preceded by a td of class sdawatt_banner with the text Monday - 16 September 2013.
Or the following td:
<td class="sdawatt_booknow">Book</td>
if we look for the date of the 'Friday - 13 September 2013'.
Is this something doable in Xpath ?
<table cellspacing="0" cellpadding="0" border="0" style="border-collapse:collapse;" class="sdawatt_outer">
<tbody><tr>
<td class="sdawatt_hdrcell">Time</td>
<td class="sdawatt_hdrcell">Class</td>
<td class="sdawatt_hdrcell">Level</td>
<td class="sdawatt_hdrcell">Spaces</td>
<td class="sdawatt_hdrcell">Location</td>
<td class="sdawatt_hdrcell">Instructors</td>
<td class="sdawatt_hdrcell">Tags</td>
<td class="sdawatt_hdrcell">Info</td>
<td class="sdawatt_hdrcell">Book</td>
</tr><tr>
<td colspan="9" class="sdawatt_banner">Friday - 13 September 2013</td>
</tr><tr class="sdawatt_classrow">
<td class="sdawatt_time">07:45-08:15</td>
<td class="sdawatt_classname">Boxing</td>
<td class="sdawatt_level"> </td>
<td class="sdawatt_spaces">14 Left</td>
<td class="sdawatt_location">Main Studio</td>
<td class="sdawatt_resources"> Darren</td>
<td class=" sdawatt_infotags"></td>
<td class="sdawatt_info"><img src="https://v4.fitnessandlifestylecentre.com/webaccess/TimetableView/information.gif" class="tiptip" /></td>
<td class="sdawatt_booknow">Book</td>
</tr><tr class="sdawatt_classrow">
<td class="sdawatt_time">12:00-12:45</td>
<td class="sdawatt_classname">Spin</td>
<td class="sdawatt_level"> </td>
<td class="sdawatt_spaces">8 Left</td>
<td class="sdawatt_location">Main Studio</td>
<td class="sdawatt_resources"> Matt</td>
<td class=" sdawatt_infotags"></td>
<td class="sdawatt_info"><img src="https://v4.fitnessandlifestylecentre.com/webaccess/TimetableView/information.gif" class="tiptip" /></td>
<td class="sdawatt_booknow">Book</td>
</tr><tr>
<td colspan="9" class="sdawatt_banner">Monday - 16 September 2013</td>
</tr><tr class="sdawatt_classrow">
<td class="sdawatt_time">13:00-13:45</td>
<td class="sdawatt_classname">Spin</td>
<td class="sdawatt_level"> </td>
<td class="sdawatt_spaces">12 Left</td>
<td class="sdawatt_location">Main Studio</td>
<td class="sdawatt_resources"> Marzena</td>
<td class=" sdawatt_infotags"></td>
<td class="sdawatt_info">
<img src="https://v4.fitnessandlifestylecentre.com/webaccess/TimetableView/information.gif" class="tiptip" /></td>
<td class="sdawatt_booknow">Book</td>
</tr>
</tbody></table>

Answer 1

//tr[
contains(
td[#class="sdawatt_banner"],
"Monday - 16 September 2013")
]
/following-sibling::tr[
contains(
td[#class="sdawatt_classname"],
"Spin")
]/td[#class="sdawatt_booknow"]
yields
<td class="sdawatt_booknow">
Book
</td>