// JavaScript Document
function isValidEmail(str) {

   return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
 
}

function ValidateForm(form)
{

   if (!isValidEmail(form.f_email.value)) 
   { 
      alert('You need to enter your full email address \nie username@shoal.net.au') 
      form.f_email.focus(); 
      return false; 
    } 
	else
	{
		return true;
	}
 
}