<html> <head> <script> function Run(){ window.alert("In Run"); } </script> </head> <body> <h3>TextBox = </h3> <input type="text" id="T1" value='10'/> <input type="button" id="B1" value="Change" onclick= "Run()" /> <p> <H1 id="Hey">Hello World</H1> </body> </html>