<br> <br><script language="javascript"> <BR>function changeBox(status) <BR>{ <BR>textbox.style.display = status ? "" : "none" <BR>} <BR></script> <br><br><script language="javascript" for="test" event="onpropertychange"> <BR>var propName = event.propertyName <BR>var propValue = this[propName] <br><br>switch(propName) <BR>{ <BR>case "checked": <BR>changeBox(propValue) <BR>break; <BR>} <BR></script> <br> <br><br> <br><input type="radio" id="test" name="radio" checked> <br><input type="radio" name="radio"> <br><input id="textbox"> <br> <br>
