Currency Auto Format - Please Help

**jpaulraj** · 03-08-2007, 11:08 PM

Hi,

I used the below code to auto format the currency input field. Now i need to add a $ sign in front of the numbers ($ sign inside the text box).

http://javascript.internet.com/forms/auto-currency.html

Would be great if you could let me know how to do this.

Thanks.

**tech_support** · 03-09-2007, 05:04 AM

Code:

<!-- TWO STEPS TO INSTALL AUTO CURRENCY:

  1.  Copy the coding into the HEAD of your HTML document
  2.  Add the last code into the BODY of your HTML document  -->

<!-- STEP ONE: Paste this code into the HEAD of your HTML document  -->

<HEAD>

<SCRIPT LANGUAGE="JavaScript">
<!-- Original:  Mario Costa (mariocosta@openlink.com.br) -->
<!-- Bug fix:   John Kiernan  -->

<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

<!-- Begin
function currencyFormat(fld, milSep, decSep, e) {
var sep = 0;
var key = '';
var i = j = 0;
var len = len2 = 0;
var strCheck = '0123456789';
var aux = aux2 = '';
var whichCode = (window.Event) ? e.which : e.keyCode;
if (whichCode == 13) return true;  // Enter
if (whichCode == 8) return true;  // Delete (Bug fixed)
key = String.fromCharCode(whichCode);  // Get key value from key code
if (strCheck.indexOf(key) == -1) return false;  // Not a valid key
len = fld.value.length;
for(i = 0; i < len; i++)
if ((fld.value.charAt(i) != '0') && (fld.value.charAt(i) != decSep)) break;
aux = '';
for(; i < len; i++)
if (strCheck.indexOf(fld.value.charAt(i))!=-1) aux += fld.value.charAt(i);
aux += key;
len = aux.length;
if (len == 0) fld.value = '';
if (len == 1) fld.value = '0'+ decSep + '0' + aux;
if (len == 2) fld.value = '0'+ decSep + aux;
if (len > 2) {
aux2 = '';
for (j = 0, i = len - 3; i >= 0; i--) {
if (j == 3) {
aux2 += milSep;
j = 0;
}
aux2 += aux.charAt(i);
j++;
}
fld.value = '$';
len2 = aux2.length;
for (i = len2 - 1; i >= 0; i--)
fld.value += aux2.charAt(i);
fld.value += decSep + aux.substr(len - 2, len);
}
return false;
}
//  End -->
</script>

</HEAD>

<!-- STEP TWO: Copy this code into the BODY of your HTML document  -->

<BODY>

<form>
Enter Value:
<input type=text name=test length=15 onKeyPress="return(currencyFormat(this,',','.',event))">
</form>

<p><center>
<font face="arial, helvetica" size"-2">Free JavaScripts provided<br>
by <a href="http://javascriptsource.com">The JavaScript Source</a></font>
</center><p>

<!-- Script Size:  1.95 KB -->

**jscheuer1** · 03-09-2007, 06:28 AM

You also may want to have a look at this thread, it is related but uses completely different code:

http://www.dynamicdrive.com/forums/s...ead.php?t=4026