PHP & JavaScript

Is it possible to restrict a .php file to process after 'Submit' if one or more text boxes becomes empty using JavaScript ? Please show me the one.

Can you rephrase that question?

Is this what you want?

This won't submit the form until a value has been entered.

HTML Code:

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<script language="javascript">

function validate(theform) {

if (theform.YourField.value=="") {
alert("Pleaes enter a value");
theform.YourField.focus()
return false; }

}

</script>

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PHP Code:

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<form method="post" action="YourPage.php" onSubmit="return validate(this)">
<input type="text" name="YourField">

<input type="submit" name="submit" value="Submit">
</form> 


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