Selenium rc 如何确定ajax元素的XPath

我需要确定元素mainForm:queryConfigure:fetchReport的xpath

及

还有一个案例：

<div class="tabUnselectedText" align="center">
<a href="javascript:renderPage('mainForm:consoleBeanId.1','Notifications', 'notifications.faces');">Notifications</a>
</div>

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Id和name属性值是方法click可接受的定位器。请参阅文档中的

selenium.click('mainForm:queryConfigure:fetchReport');

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/html/body/table/tbody/tr/td/table/tbody/tr[2]/td/form[@id='mainForm']/div[@id='mainForm:ju-jsp\u-maintemplatejspjsp103']/div[@id='mainForm:body']/table[@id='mainForm:analysisSelectTable']/tbody/table[@id='mainForm:analysisSelectMainTable']/tbody/tr/td/span[@id='form:queryConfigure:ju-18']/tbody/tr/td/input[@id='mainForm:queryConfigure:fetchReport']这是从xpather插件收集的xpath。这不适用于selenium RC

selenium.click("//input[@id='mainForm:queryConfigure:fetchReport']");

<div class="tabUnselectedText" align="center">
<a href="javascript:renderPage('mainForm:consoleBeanId.1','Notifications', 'notifications.faces');">Notifications</a>
</div>

selenium.click('mainForm:queryConfigure:fetchReport');