Validate an input field with minimum and maximum values : Validation « Form Control « JavaScript DHTML

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JavaScript DHTML » Form Control » Validation

Validate an input field with minimum and maximum values




<html>



<head>

<script type="text/javascript">

    function validate(){

        x=document.myForm

        txt=x.myInput.value

        if (txt>=1 && txt<=5) {

            return true

        }else{

            alert("Must be between 1 and 5")

            return false

        }

}

</script>

</head>



<body>

    <form name="myForm" action="http://www.java2java.com" onsubmit="return validate()">

    Enter a value from 1 to 5: 

    <input type="text" name="myInput" size="20">

    <input type="submit" value="Submit">

</form>

</body>



</html>

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