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Java script

Program To enter a user name and show popup welcome user box using Java script.

<html>
<script type="text/javascript">
function amit()
{
alert('welcome user');
}
function amitt(textstring)  //amitt is a function name, you can choose any name//
{
var r = textstring; document.getElementById('txt');
alert('welcome '+r);
}
</script>
<body> <input type="button" value=' enter' onclick='amit()'>
<br> <form> <input type="button" value=' enter' onclick='amitt(form.txt.value)'> <input type='text' id='txt'> </form>
</body>
</html>




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