Dynamically change onchange event of select control of html

Question

Can I dynamically the onchange event of select control of html?
i..e. change the task to be done when the onchange event is triggered.
Thanks in advance

Answer 1

Yes.
At what point do you want to change it?
What do you want to change it to?
If you are generating the page, you can obviously produce different code behind the button using JSP to generate javascript code.
eg
function alertUser(){
  alert('<%=  alertMessage %>');
}That will produce a different function every time you load the page, depending on the variable "alertMessage".
You can also replace javascript handlers at runtime, just by simply assigning functions. However you at the client end you are only able to run javascript - no java.
eg
function alertUser1(){
  alert("action a");
function alertUser2(){
  alert("action b");
<button id="button1" onclick="alertUser1()">Alert!</button>
<button onclick="button1.onclick=alertUser2">Alert!</button>Does that help?