<html> <form> <input type="button" value="Yellow" name="Yellow" onClick="changeBG('yellow')"> <input type="button" value="Green" name="Green" onClick="changeBG('green')"> <input type="text" name="color"> </form> <script language="JavaScript"> <!-- function changeBG(color) { document.bgColor=color; //Change background color document.myForm.color.value=color; //Display the color } --> </script> </html>