ie.au3 problem clicking on Href with class

I was wondering if someone could give me advice or help on how best to accomplish submitting some clicks in an HTML page in IE.

I am able to click on submission buttons that look like the following:

<a id="J_LinkBuy" href="#" data-addfastbuy="true" title="wifes_web">Pay Now<b></b></a>

Using the following code:

$oLink = _IEGetObjById($oIE, "J_LinkBuy")
$href = $oLink.href
MsgBox(1, "href link", $href )
_IEAction($oLink, "click")

However, when I try to do the same thing for the following button elsewhere on the page, it never submits.

<div class="tb-btn-buy">
  <a href="#" data-addfastbuy="true" title="wife2" class="J_ClickCatcher J_LinkBuy">
     Pay Now
    <b class="J_ClickCatcher J_LinkBuy"></b>
  </a>
</div>

Instead of a id= , I see the page uses a class= , which I'm not sure if I can use _IEAction click to work on. I don't think I can just write:

$oLink = _IEGetObjById($oIE, "J_ClickCatcher J_LinkBuy")
_IEAction($oLink, "click")

Also, this link tag may send to some javascript. I'm not sure.

Thanks in advance!