Centigrade/Farenheit converter

<SCRIPT LANGUAGE="JavaScript"> function convertCtoF() { var centy=0; centy=document.Converter.centigrade.value; document.Converter.fahrenheit.value= centy *9/5+32 ; } function convertFtoC() { var centy=0; centy=document.Converter.fahrenheit.value; document.Converter.centigrade.value= (centy-32)*5/9 ; } </SCRIPT>

<form name="Converter">

Centigrade 

<input type=text name="centigrade" size=10 onchange="convertCtoF()">

Farenheit  

<input type=text name="fahrenheit" size=10 onchange="convertFtoC()">

</form>