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MOUSE EVENTS [cont'd]
HEADER [cont'd]
onfocus in KEYBOARD EVENTS of HTML 4
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Usage 
The onfocus will get triggered when object on focus.
Example
<html>
<body>

Welcome!!Enter your Id: <input type="text" onfocus="myFunction(this)">


<script>
function myFunction(x) {
    x.style.background = "Red";
}
</script>

</body>
</html>
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