Get element by name: getElementsByName()

<html>

<head>
<script type="text/javascript">
    
    function getElements(){
        var x=document.getElementsByName("myInput")
        alert(x.length + " elements!")
    }
    
</script>
</head>
<body>

<form >

    <input name="myInput" type="text" size="20"><br>
    <input name="myInput" type="text" size="20"><br>
    <input name="myInput" type="text" size="20"><br>
    <br>
    <input name="mybutton" type="button" onclick="getElements()" 
            value="Show how many elements named 'myInput'">
</form>
</body>

</html>

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Get element by name: getElementsByName() : Document « Development « JavaScript DHTML

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