// JavaScript Document



function validate_form() {

	document.getElementById("fname").style.backgroundColor="#FFFFFF";
	document.getElementById("lname").style.backgroundColor="#FFFFFF";
	document.getElementById("person_title").style.backgroundColor="#FFFFFF";
	document.getElementById("institution_school").style.backgroundColor="#FFFFFF";
	document.getElementById("address").style.backgroundColor="#FFFFFF";
	document.getElementById("postal_add").style.backgroundColor="#FFFFFF";
	document.getElementById("emailAd").style.backgroundColor="#FFFFFF";

	

	if (document.getElementById("david_visit").checked == true) {
		document.getElementById("david_visit_hidden").value = "true";
	} else {
		document.getElementById("david_visit_hidden").value = "false";
	}


	/*
		hidden input time?
		don't name the checkboxes

	*/

	update_hidden_inputs("science_teacher");
	update_hidden_inputs("maths_teacher");
	update_hidden_inputs("english_teacher");
	update_hidden_inputs("geography_teacher");
	update_hidden_inputs("outdoor_education_teacher");
	update_hidden_inputs("interests_horticulture");
	update_hidden_inputs("interests_natural_history");
	update_hidden_inputs("interests_environment_sustainability");
	update_hidden_inputs("interests_science");




	var alert_str = "";
	
	if (document.getElementById('fname').value == "") {
		alert_str = alert_str + "First name\n";

		document.getElementById("fname").style.backgroundColor="#FF7F50";

	}
	if (document.getElementById('lname').value == "") {
		alert_str = alert_str + "Last name\n";

		document.getElementById("lname").style.backgroundColor="#FF7F50";
	}

	if (document.getElementById('person_title').value == "") {
		alert_str = alert_str + "Title\n";

		document.getElementById("person_title").style.backgroundColor="#FF7F50";
	}

	if (document.getElementById('institution_school').value == "") {
		alert_str = alert_str + "Institution / School\n";

		document.getElementById("institution_school").style.backgroundColor="#FF7F50";
	}

	if (document.getElementById('address').value == "" && document.getElementById('postal_add').value == "") {
		alert_str = alert_str + "Institution Address \n";
		document.getElementById("address").style.backgroundColor="#FF7F50";
	}

	if (document.getElementById('emailAd').value == "") {
		alert_str = alert_str + "Email\n";

		document.getElementById("emailAd").style.backgroundColor="#FF7F50";
	}	
	
	if (alert_str != "") {
		alert('You need to enter the following fields: \n' + alert_str);
	} else {
		//alert('submit form');
		document.frm.submit();
	}
	
	
	
}





function update_hidden_inputs(str) {
	if (document.getElementById(str).checked == true) {
		document.getElementById(str + "_hidden").value = "true";
	} else {
		document.getElementById(str + "_hidden").value = "false";
	}
}