Change event in JavaScript

Onchange event will be fired when control value has been changed.

Example:

Select the country name from the dropdown

Code Sample:

<html> <head> <title>Onchange event example in JavaScript</title> <script language="Javascript"> function selctcntry(evt, t) { if (t.selectedIndex > 0) document.getElementById("Text1").value = t.value; else document.getElementById("Text1").value = ""; } </script> </head> <body> <table align="center"> <tr> <td> <input type="text" id="Text1" /> </td> </tr> <tr> <td> Select the country name from the dropdown </td> </tr> <tr> <td> <select onchange="selctcntry(event,this);"> <option value="India">Select</option> <option value="India">India</option> <option value="USA">USA</option> <option value="China">China</option> <option value="Japan">Japan</option> <option value="Canada">Canada</option> </select> </td> </tr> </table> </body> </html>