Code:
<script>
function validateForm()
{
var x=document.forms["myForm"]["name"].value;
if (x==null || x=="")
  {
  alert("First name must be filled out");
  return false;
  }
}
</script>

<form name="myForm" action="<?php print $PHP_SELF ?>" onsubmit="return validateForm()" method="post">
Input name : <input type="text" name="name"><br><br>
<input type="submit" name="students" value="addnow">
The above code is working fine. If i added another form. The code might looks like below.


Code:
<form name="form" action="<?php print $PHP_SELF ?>" method="post">
<input type="text" name="time">
<input type="submit" name="date" value="insert">


<script>
function validateForm()
{
var x=document.forms["myForm"]["name"].value;
if (x==null || x=="")
  {
  alert("First name must be filled out");
  return false;
  }
}
</script>



<form name="myForm" action="<?php print $PHP_SELF ?>" onsubmit="return validateForm()" method="post">
Input name : <input type="text" name="name"><br><br>
<input type="submit" name="students" value="addnow">
It is not working for the validation. Can anyone pls help ?