function validate_form (obj_form) {
	obj_form.email.value = trim ( obj_form.email.value );

	if (obj_form.email.value == "") {
		obj_form.email.focus();
		alert("Email is a required field.");
		return false;
	} else {
		if (!isEmail(obj_form.email.value)) {
			alert("Please provide a valid Email Address.");
			obj_form.email.focus();
			return false;
		}
	}
	return true;
}