var filter=/^(\w+(?:\.\w+)*)@((?:\w+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i

function validate_form ( )
{
	valid = true;     
		if (filter.test(document.myform.email.value))
		valid = true;  
		else
		{
		alert ( "Please enter a valid email address" );
				document.myform.email.focus();
                return valid = false;
		}
		//address
		if (document.myform.password.value == "")
		{
		alert ( "The password field is required" );
				document.myform.password.focus();
                return valid = false;
		}
  return valid;
}