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copied!<p><strong>EDIT</strong></p> <p>As @Adam points out in the comments, there is a native jQuery mechanism that basically does the same thing as the hack in my original answer. Using jQuery you can do</p> <pre><code> $('[id$=myButton]').click(function(){ alert('button clicked'); }); </code></pre> <p>My hack was originally developed as a Prototype work around for ASP.NET and I adapted it for the original answer. Note that jQuery basically does the same thing under the hood. I recommend using the jQuery way, though, over implementing my hack.</p> <p><strong>Original answer left for comment context</strong></p> <p>When you use a master page, ASP.NET mangles the names of the controls on the dependent pages. You'll need to figure out a way to find the right control to add the handler to (assuming you're adding the handler with javascript).</p> <p>I use this function to do that:</p> <pre><code>function asp$( id, tagName ) { var idRegexp = new RegExp( id + '$', 'i' ); var tags = new Array(); if (tagName) { tags = document.getElementsByTagName( tagName ); } else { tags = document.getElementsByName( id ); } var control = null; for (var i = 0; i < tags.length; ++i) { var ctl = tags[i]; if (idRegexp.test(ctl.id)) { control = ctl; break; } } if (control) { return $(control.id); } else { return null; } } </code></pre> <p>Then you can do something like:</p> <pre><code>jQuery(asp$('myButton','input')).click ( function() { alert('button clicked'); } ); </code></pre> <p>where you have the following on your child page</p> <pre><code><asp:Button ID="myButton" runat="server" Text="Click Me" /> </code></pre>

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