//function to check valid email address
function isValidEmail(){
  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
  strEmail = document.forms[0].ema_email.value;

   // search email text for regular exp matches
    if (strEmail.search(validRegExp) == -1) 
   {
      alert('A valid e-mail address is required.\nPlease amend and retry.');
      return false;
    } 
    return true;
}

$(document).ready(function() {
	
	$('input[name=ema_email]').focus(function() {
		$('#InputBox .bton').css('display', 'block');
	});
	
	$('input[name=ema_email]').blur(function() {
		if ($(this).val() == "") $('#InputBox .bton').css('display', 'none');
	});
	
	$('#InputBox .bton').click(function() {
		$(this).css('display', 'none');
	});
	

});