how to click on button in the internet explorer inside the table

[jagu143]

hi,
i want to click on button in a website
below is the code line for the button
'''''''<button title="" class="buttonTdButton" onclick="customActivityInPopup(pxReqURI+'?pyActivity=TransferLoanSearchPopup&Role=CFUND&pzPrimaryPageName=TaskList.pxResults(8)','45','30',event)" type="button" alt="" PEGA_VERSION="HTMLPROPERTY">''''''''
problem is there is no titile or id for the button and in the same name there are so may buttons in the table.
please advice.
regards,
jagu