DECIMALS ALLOWED JAVA SCRIPT

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Step by Step how to install java script effect for decimal allowed , you can follow instruction as below to implement in your website or blog :


<!-- TWO STEPS TO INSTALL DECIMALS ALLOWED:

  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">

<!-- Begin
function checkDecimals(fieldName, fieldValue) {

decallowed = 2;  // how many decimals are allowed?

if (isNaN(fieldValue) || fieldValue == "") {
alert("Oops!  That does not appear to be a valid number.  Please try again.");
fieldName.select();
fieldName.focus();
}
else {
if (fieldValue.indexOf('.') == -1) fieldValue += ".";
dectext = fieldValue.substring(fieldValue.indexOf('.')+1, fieldValue.length);

if (dectext.length > decallowed)
{
alert ("Oops!  Please enter a number with up to " + decallowed + " decimal places.  Please try again.");
fieldName.select();
fieldName.focus();
      }
else {
alert ("That number validated successfully.");
      }
   }
}
//  End -->
</script>
</HEAD>

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

<BODY>

<center>
<form>
Please enter a number with up to 2 decimal places:  <br>
<input type=text name=numbox>
<input type=button name=ok value="Ok" onClick="checkDecimals(this.form.numbox, this.form.numbox.value)">
</form>
</center>

<!-- Script Size:  1.42 KB -->

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