Trim upto 2 decimal points + js

Question

Hi,
I want to trim a decimal number upto 2 decimal points.ie i
want to show only 2 digits after the decimal point.How do i acheive
this in Javascript. I do not want to use the Round function as it
causes the value to change by 0.01.
this is the code i've been using:-
document.getElementsByName("totalincvat_value_nett")[0].value
= parseFloat(totalincvat_value_nett).toFixed(2);
Is there any way to show upto 2 decimal points and cut off
the rest?
thnx

Answer 1

Hi,
Have a try with this custom function (I found this in another
forum)..
function roundNumber(num, dec)
var result =
Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
return result;
}