variables

HELP!!!!

I´m trying to make an exchanger for my page. It will allow me to write a number in a form and then press a button and multiply the number with 8,24 and then print it in a another textframe in the same form.

code
-------
<SCRIPT Language="JavaScript">

funktion Change(){
var in = document.exchange.var1.value;
var ut = in*8,24;
document.exchange.var2.value = ut + "";
}
</SCRIPT>

body section
-----------
<form action="" method=POST name=exchange>
<input type="text" value="" name="var1">
<br>
<input type="button" value="växla" name="button1" onClick="Change()">
<br>
<input type="text" value="" name="var2">
<br>
</form>

[This message has been edited by trullec (edited 30 November 1999).]