function validate_form (obj_form) {
	obj_form.email.value=trim(obj_form.email.value);
	if (obj_form.email.value=="") {
		obj_form.email.focus();
		alert("E-mail is a required field.");
		return false;
	} else if(!isEmail(obj_form.email.value)) {
		obj_form.email.focus();
		alert("Your email entry was not recognized as valid.");
		return false;
	}
	
	if(obj_form.mode.value!="review email") {
		obj_form.password.value=trim(obj_form.password.value );
		if (obj_form.password.value=="") {
			obj_form.password.focus();
			alert("Password is a required field.");
			return false;
		}
	}
	
	return true;
}