/* JavaScript Library file for High School Counselor Newsletter Subscriptions. */

// initialize error message variables
var txtErrorNullSchoolName = "";
var txtErrorNullStreetAddress  = "";
var txtErrorNullCity = "";
var txtErrorNullFirstName = "";
var txtErrorNullLastName = "";
var txtErrorNullTitle = "";
var txtErrorNullEmail = "";
var txtErrorNullPhone = "";
var txtErrorNullOldEmail = "";

function HasValue(oField) {
	if (typeof oField != "undefined") {
		if (oField.value) { 
			if (trim(oField.value) != "") { return true }
			}
		}
	return false;
}

function trim(stringToTrim) {
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}

// Display appropriate error message and place cursor in offending field.
function HasError(field, form, txtErrorMessage) {
	form.display_error_message.size = txtErrorMessage.length ;		// attribute for <input> method
	document.getElementById('display_error_message').style.display='inline';
	form.display_error_message.value = txtErrorMessage;
	document.location = '#display_error_message';
	field.focus();
	field.select();
}

// Clear the error message and hide the message display element.
function ResetErrorMessageDisplay(form) {
	form.display_error_message.value = "";
	document.getElementById('display_error_message').style.display = 'none';
}

function RequireOldEmail() {
	if (document.subscription_form.F3Change.checked) {
		document.getElementById('OldEmailRequired').style.visibility = 'visible';
	}
	else {
		document.getElementById('OldEmailRequired').style.visibility = 'hidden';
	}
	return true;
}

function validate_subscription() {
	var df = document.subscription_form;
	var arFields = new Array(); 
	var arMessages = new Array(); 
	var k = 0;
	var bValidated = true;
	
	
	// Hide error message.
	ResetErrorMessageDisplay(df);

	// List all the required fields.
	arFields[k] = df.OrgName; 	arMessages[k] = txtErrorNullSchoolName; 	k++;
	arFields[k] = df.Street; 		arMessages[k] = txtErrorNullStreetAddress; 	k++;
	arFields[k] = df.City; 			arMessages[k] = txtErrorNullCity; 					k++;
	arFields[k] = df.F1; 				arMessages[k] = txtErrorNullFirstName; 		k++;		// first name
	arFields[k] = df.F2; 				arMessages[k] = txtErrorNullLastName; 		k++;		// last name
	arFields[k] = df.F5; 				arMessages[k] = txtErrorNullTitle; 				k++;		// Title
	arFields[k] = df.EMail; 		arMessages[k] = txtErrorNullEmail; 				k++;
	arFields[k] = df.AreaCode; 	arMessages[k] = txtErrorNullPhone; 			k++;
	arFields[k] = df.Phone; 		arMessages[k] = txtErrorNullPhone; 			k++;
	arFields[k] = df.Phone2; 		arMessages[k] = txtErrorNullPhone; 			k++;
	arFields[k] = df.F4; 				arMessages[k] = txtErrorNullOldEmail; 		k++;	 	// old email address
	
	for (j=0; j < arFields.length; j++) {
		if (arFields[j].name!="F4" | df.F3Change.checked) {
			if ( HasValue(arFields[j])==false ) {
				HasError(arFields[j], df, arMessages[j]);
				bValidated = false;
				break;
				}
			}
		}

	return bValidated;
}