Javascript DOM onfocusin Event works with onfocusout event

Introduction

Using "onfocusin" together with the "onfocusout" event:

When you enter the input field, a function is triggered which sets the background color to yellow.

When you leave the input field, a function is triggered which sets the background color to red.

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<!DOCTYPE html>
<html>
<body>
Enter your name: /*w ww  .  j a va  2 s  .co m*/
<input type="text" 
       id="myInput" 
       onfocusin="focusFunction()" 
       onfocusout="blurFunction()">

<script>
// Focus = Changes the background color of input to yellow
function focusFunction() {
  document.getElementById("myInput").style.background = "yellow";
}
// No focus = Changes the background color of input to red
function blurFunction() {
  document.getElementById("myInput").style.background = "red";
}
</script>

</body>
</html>



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