Avoid Or Donot Allow user To Enter Space | JavaScript Exprestion
Just put range 1 to 9 in exp if you want to allow number also

<form onsubmit=”return formValidator()” method=”POST” action=”arv.php”>
<script type=’text/javascript’>
function formValidator(){
  var name = document.getElementById(’x1′);
       if(Validator(name, “dont put space”)){
  }
  return false;
  }

function Validator(elem, helperMsg){
 var alphaExp = /^[a-zA-Z]+$/;
 if(elem.value.match(alphaExp)){
  return true;
 }else{
  alert(helperMsg);
  return false;
 }
}
</script>
        <input name=”name” value=”" type=”text” id=”x1″></td>
        <input value=”submit” onclick=”getFormBody()” type=”submit”>
</script>