<html> <head> <script language="JavaScript"> <!-- function reikna(Kvardi){ if (Kvardi == 'F'){ C = document.hiti.Celcius.value; document.forms['hiti'].Fahrenheit.value = C * 9/5 + 32; } else { F = this.hiti.Fahrenheit.value; document.all['hiti'].Celcius.value = (F -32) * 5/9; } } // --> </script> <title>JavaScript - Dæmi 1</title> </head> <body> <h2>Fyrsta dæmi um JavaScript og FORM</h2> <form name="hiti"> <table> <tr> <td align="left">Celcíus : <input type="Text" name="Celcius" size="10"></td> <td align="right">Fahrenheit : <input type="Text" name="Fahrenheit" size="10"></td> </tr> <tr> <td align="left"><input type="Button" value="Reikna Fahrenheit" onclick="reikna('F')"></td> <td align="right"><input type="Button" value="Reikna Celcíus" onclick="reikna('C')"></td> </tr> </table> </form> </body> </html>