function requestForm() {
	$('#person_properties_hear_about_film').change(function() {
		if (this.value == "other") { $('#otherField').fadeIn().css({display: "inline"}); $("#otherField input").attr({ disabled: "" }); } 
		else { $('#otherField').fadeOut().attr({ disabled: "disabled" }); }
	});
	
	$("#close").click(function() {
		$.unblockUI();
	});
	
	$('form[name="requestMovieForm"]').submit(function() {
		var formValues = {};
		var validated = false;
		validated = validate(this);
		
		if (validated) {
			load("on");
			
			for (var i = 0, len = this.elements.length; i < len; i++) {
				var elems = this.elements;
				var elem = elems[i];
				if (elem.name == "person_properties_optin_email") {
					var val = elem.checked ? 1 : 0;
				} else {
					var val = elem.value;
				}
				formValues[elem.name] = val;
			}
			$.ajax({
				type: "POST",
				url: "/request-movie/",
				dataType: "text",
				data: formValues,
				success: function(data) {
					t = setTimeout(function() {
						load("off"); clearTimeout(t);
						$("form[name='requestMovieForm']").html('<p>Thanks. You\'re now being transfered to the online shop.</p>');
						t2 = setTimeout(function() {
							//$.unblockUI();
							clearTimeout(t2);
							document.location.href = 'http://www.shop4online.co.uk/watp';
						}, 2000);
					}, 1000);
				},
				error: function(XMLHttpRequest, textStatus, errorThrown) {
					load("off");
					$("form[name='requestMovieForm']").html('<p>Sorry there has been an error. Please try again later.</p>');
				}
			});	
		}
		return false;
	});
}

function load(onOff) {
	if (onOff) {
		if (onOff == "on") {
			// $("#person_save").attr({ disabled: "disabled" });
			$("#load").fadeIn();
		} else if(onOff == "off") {
			$("#person_save").attr({ disabled: "" });
			$("#load").fadeOut();
		}
	}
}

function openForm() {
	$.blockUI({
		message: $("#requestForm"),
		css: {
			border: "none",
			cursor: "auto",
			width: "530px",
			background: "none"
		},
		overlayCSS: { backgroundColor: "#000", cursor: "auto" }
	});
}

function validate(form) {
	var valid = true;
	for (var i = 0, len = form.elements.length; i < len; i++) {
		var elems = form.elements;
		var elem = elems[i];
		
		if (elem.className.match(/required/) && elem.value == "") {
			valid = false;
			$(elem).addClass("error");
		} else {
			$(elem).removeClass("error");
		}
		;
		if ($(elem).hasClass("postcode") && elem.value != "") {
			if (!checkPostcode(elem.value)) {
				valid = false;
				$(elem).addClass("error");
			} else {
				$(elem).removeClass("error");
			}
		}
	}
	return valid;
}

$(function() { requestForm(); });

function checkPostcode (toCheck) {

	// Permitted letters depend upon their position in the postcode.
	var alpha1 = "[abcdefghijklmnoprstuwyz]";                       // Character 1
	var alpha2 = "[abcdefghklmnopqrstuvwxy]"; // Character 2
	var alpha3 = "[abcdefghjkpmnrstuvwxy]"; // Character 3
	var alpha4 = "[abehmnprvwxy]";// Character 4
	var alpha5 = "[abdefghjlnpqrstuwxyz]";// Character 5
	
	// Array holds the regular expressions for the valid postcodes
	var pcexp = new Array ();
	
	// Expression for postcodes: AN NAA, ANN NAA, AAN NAA, and AANN NAA
	pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "?[0-9]{1,2})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
	
	// Expression for postcodes: ANA NAA
	pcexp.push (new RegExp ("^(" + alpha1 + "{1}[0-9]{1}" + alpha3 + "{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
	
	// Expression for postcodes: AANANAA
	pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "{1}" + "?[0-9]{1}" + alpha4 +"{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
	
	// Exception for the special postcode GIR 0AA
	pcexp.push (/^(GIR)(\s*)(0AA)$/i);
	
	// Standard BFPO numbers
	pcexp.push (/^(bfpo)(\s*)([0-9]{1,4})$/i);
	
	// c/o BFPO numbers
	pcexp.push (/^(bfpo)(\s*)(c\/o\s*[0-9]{1,3})$/i);
	
	// Overseas Territories
	pcexp.push (/^([A-Z]{4})(\s*)(1ZZ)$/i);
	
	// Load up the string to check
	var postCode = toCheck;
	
	// Assume we're not going to find a valid postcode
	var valid = false;
	
	// Check the string against the types of post codes
	for ( var i=0; i<pcexp.length; i++) {
		if (pcexp[i].test(postCode)) {
			// The post code is valid - split the post code into component parts
			pcexp[i].exec(postCode);
			
			// Copy it back into the original string, converting it to uppercase and
			// inserting a space between the inward and outward codes
			postCode = RegExp.$1.toUpperCase() + " " + RegExp.$3.toUpperCase();
			
			// If it is a BFPO c/o type postcode, tidy up the "c/o" part
			postCode = postCode.replace (/C\/O\s*/,"c/o ");
			
			// Load new postcode back into the form element
			valid = true;
			
			// Remember that we have found that the code is valid and break from loop
			break;
		}
	}
	
	// Return with either the reformatted valid postcode or the original invalid 
	// postcode
	
	// Validation removed from postcode input field at the request of client. Uncomment line below to reverse.
	//if (valid) {return postCode;} else return false;
	return postCode;
}