When the page loads, the bodyLoaded function is called. Implement bodyLoaded to register a click event handler for the Convert button (id="ConvertButton"). Use addEventListener(), not onclick. When the Convert button is pressed, the text box that contains a number should be converted into the opposing temperature. So if a number is in the Celsius text box (id="CInput"), the temperature should be converted into Fahrenheit and displayed in the Fahrenheit text box (id="FInput") and vice versa. Use parseFloat() to convert from a string to a number and do not round the result.