of scripting and web-coding

If you have already injected some Javascript dynamically in a page (possibly because you cannot modify the original scripts directly), you may have realised the order in which Javascript functions are triggered is dependent on the order of declaration. Hence, if you try and bind a new "onclick" handler on a button for which another function has already been bound, the latter will be executed before yours. Here is a simple trick to reorder the order of execution.  Say your original code looks like so: <script> function showAlert(message){      alert(message); } </script> [...] <input type=text id="myButton" onClick="showAlert(this.value);" /> You can 't modify the HTML part and yet y ou want to execute a new function of your own before the alert message of showAlert is sent, for instance the following one: function changeMessage(newMessage){       document.getElementById("myButton").value=newMessage; ...