I've managed to create a simple script to convert between metric and
imperial. It works for CMS to INCHES and vice versa but not for KGS to
STONES/POUNDS. Can anyone shed any light on this?
Here's my code (CMS and INCHES which is working):
<input name="CM" type="text" VALUE="" size="3" maxlength="3"
onChange="eval('IN.value = ' + this.form.IN_expr.value)">
cms <em>or</em>
<input name="IN" type="text" VALUE="" size="3" maxlength="3"
onChange="eval('CM.value = ' + this.form.CM_expr.value)">
inches<INPUT TYPE="hidden" NAME="CM_expr" VALUE="(Math.round(2.54 *
IN.value))">
<INPUT TYPE="hidden" NAME="IN_expr" VALUE="(Math.round(CM.value /
2.54))">
Here's my code for KGS to STONES/POUNDS (not working):
<input name="KGM" type="text" VALUE="" size="3" maxlength="3"
onChange="eval('ST.value = ' + this.form.ST_expr.value);
eval('PNDS.value = ' + this.form.PNDS_expr.value)">
KGM <em>or</em>
<input name="ST" type="text" VALUE="" size="3" maxlength="3"
onChange="eval('KGM.value = ' + this.form.KGM_expr.value)">St
<input name="PNDS" type="text" VALUE="" size="3" maxlength="3"
onChange="eval('KGM.value = ' + this.form.KGM_expr.value)">
lbs
<INPUT TYPE="hidden" NAME="KGM_expr" VALUE="(Math.round((ST.value * 14)
+ PNDS.value) * 0.4536)">
<INPUT TYPE="hidden" NAME="ST_expr" VALUE="(Math.round(KGM.value /
0.4536) / 14)"><INPUT TYPE="hidden" NAME="PNDS_expr"
VALUE="(Math.round(KGM.value / 0.4536) - ST.value)">
Firstly, I only want an integer in the result but am getting a decimal
to about 6 places.
Secondly, it appears that the + in (Math.round((ST.value * 14) +
PNDS.value) * 0.4536) is appending the PNDS.value to the ST.value * 14
so if PNDS.value is 0 and ST.value is 12 it calculates using 120.
I've spent a good few hours trying to get it to work or find the
suitable code but just can't find it.
Many thanks in anticipation.
