I don't think that there is any function built into Javascript for rounding to a specific decimial place.

But you can use the custom function below.

Just call this function like this:

new_number = round_decimals( The original number, Number of decimial places )

--------------------------------------------------------

<script language="JavaScript" type="text/javascript">

<!--

/* This script is Copyright (c) Paul McFedries and

Logophilia Limited (http://www.mcfedries.com/ ).

Permission is granted to use this script as long as

this Copyright notice remains in place.*/

function round_decimals(original_number, decimals) {

var result1 = original_number * Math.pow(10, decimals)

var result2 = Math.round(result1)

var result3 = result2 / Math.pow(10, decimals)

return pad_with_zeros(result3, decimals)

}

function pad_with_zeros(rounded_value, decimal_places) {

// Convert the number to a string

var value_string = rounded_value.toString()

// Locate the decimal point

var decimal_location = value_string.indexOf(".")

// Is there a decimal point?

if (decimal_location == -1) {

// If no, then all decimal places will be padded with 0s

decimal_part_length = 0

// If decimal_places is greater than zero, tack on a decimal point

value_string += decimal_places > 0 ? "." : ""

}

else {

// If yes, then only the extra decimal places will be padded with 0s

decimal_part_length = value_string.length - decimal_location - 1

}

// Calculate the number of decimal places that need to be padded with 0s

var pad_total = decimal_places - decimal_part_length

if (pad_total > 0) {

// Pad the string with 0s

for (var counter = 1; counter <= pad_total; counter++)

value_string += "0"

}

return value_string

}

//-->

</script>

But you can use the custom function below.

Just call this function like this:

new_number = round_decimals( The original number, Number of decimial places )

--------------------------

<script language="JavaScript" type="text/javascript">

<!--

/* This script is Copyright (c) Paul McFedries and

Logophilia Limited (http://www.mcfedries.com/

Permission is granted to use this script as long as

this Copyright notice remains in place.*/

function round_decimals(original_nu

var result1 = original_number * Math.pow(10, decimals)

var result2 = Math.round(result1)

var result3 = result2 / Math.pow(10, decimals)

return pad_with_zeros(result3, decimals)

}

function pad_with_zeros(rounded_val

// Convert the number to a string

var value_string = rounded_value.toString()

// Locate the decimal point

var decimal_location = value_string.indexOf(".")

// Is there a decimal point?

if (decimal_location == -1) {

// If no, then all decimal places will be padded with 0s

decimal_part_length = 0

// If decimal_places is greater than zero, tack on a decimal point

value_string += decimal_places > 0 ? "." : ""

}

else {

// If yes, then only the extra decimal places will be padded with 0s

decimal_part_length = value_string.length - decimal_location - 1

}

// Calculate the number of decimal places that need to be padded with 0s

var pad_total = decimal_places - decimal_part_length

if (pad_total > 0) {

// Pad the string with 0s

for (var counter = 1; counter <= pad_total; counter++)

value_string += "0"

}

return value_string

}

//-->

</script>