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copied!<p><strong>Answer:</strong> So this is the technique I'm happiest with. Doesn't require doing <em>too</em> much weird stuff to figure out the id of a component. Remember the whole point of this is so you can know the <code>id</code> of a component from anywhere on your page, not <em>just</em> from the actual component itself. This is key. I press a button, launch javascript function, and it should be able to access <strong>any</strong> other component, not just the one that launched it.</p> <p>This solution doesn't require any 'right-click' and see what the id is. That type of solution is brittle, as the id is dynamically generated and if I change the page I'll have to go through that nonsense each time.</p> <ol> <li><p>Bind the component to a backing bean.</p></li> <li><p>Reference the bound component wherever you want.</p></li> </ol> <p>So here is a sample of how that can be done.</p> <p>Assumptions: I have an *.xhtml page (could be *.jsp) and I have defined a backing bean. I'm also using JSF 2.0.</p> <p>*.xhtml page</p> <pre><code><script> function myFunc() { var inputText = document.getElementById("#{backBean.emailAddyInputText.clientId}") alert("The email address is: " + inputText.value ); } </script> <h:inputText binding="#{backBean.emailAddyInputText}"/> <h:commandButton onclick="myFunc()" action="results" value="Next"/> </code></pre> <p>BackBean.java</p> <pre><code>UIInput emailAddyInputText; </code></pre> <p>Make sure to create your getter/setter for this property too.</p>

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