How to prevent second click on radio button if it is already checked so that javascript event can be prevented

Question

How to prevent second click on radio button if it is already checked so that javascript event can be prevented

javascript

Solution

You could use change event instead of click

<input name="EnumEvent" type="radio" value="Open" onchange="show_event()"/>

DEMO

Problem

How to prevent second click on radio button if it is already checked so that javascript event can be prevented. As I am doing many things onclick of radio button ``` <input name="EnumEvent" type="radio" value="Open" onclick="show_event()"/> ``` javascript ``` function show_event() { document.getElementById("radio-btns-div1").style.display="block"; document.getElementById('invited').style.display="none"; document.getElementById('invited').value = ''; document.getElementById('invite_1').value=''; } ```

Original source

Accepted Answer

You could use change event instead of click

```
<input name="EnumEvent" type="radio" value="Open" onchange="show_event()"/>
```

DEMO