Validation for amount in java script

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Can any one help me in solving the problem
I need validation for amount in such a way that it should be maximum of 15 digits in that 12 digits numbers Ex:123456789101. and a dot(.) and after that 2 digits.

EX: 123456789101.00

Posted 8-Feb-11 20:30pm

Rajesh Yerramsetti

Updated 8-Feb-11 21:37pm

m@dhu

v2

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Albin Abel · Answer 1 · 2011-02-08T21:40:00

Hi,
Try this example

XML

<html>
<head>
<script type="text/javascript">
    function demo(){
        var amount=document.getElementById('amount').value;
        var result=isValidAmount(amount);
        if(result==true){
            alert("Valid Amount");
        }else{
            alert("Invalid Amount");
        }

    }
    function isValidAmount(amount){
        var regEx=/^\d{1,13}.\d{2}$/;
        if(amount.search(regEx)==-1){
            return false;
        }else{
            return true;
        }
    }
</script>
</head>
<body>
    <input type="text" id="amount" />
    <input type="button" value="Test Validate" onclick="demo();"/>
</body>
</html>