JavaScript Required Form Field

The following script will alert a user when he or she tabs out of the email address field without entering anything.

Example

Email address:

Name: (optional)

Script Source

<Under the head section>

<script language="javascript" type="text/javascript">

<!-- Hide scriptfrom old browsers

function fieldCheck(myField) {

if (myField.value == "") {

alert("You must enter your email address")

myField.focus()
}
}

// End hiding script from old browsers -->
</script>

<Under the body section>

<form action="#">
Email address: <input type="text" onblur="fieldCheck(this)" /></br></br>
Name: (optional) <input type="text"/>
</form>

 

Please let me know if this script was helpful to you.

[rating]

 

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