Function.prototype.calledOn = function(objInstance) {
		var functionObj = this;
		return function() {
			return functionObj.apply(objInstance, arguments);
		}
	};

	var ConsumerOrganisationField = function(fieldName, warningMessage) {
		this.fieldName = fieldName;
		this.warningMessage = warningMessage;
		this.init();
	}
	
	ConsumerOrganisationField.prototype = {
		init: function() {
			var row = $('.fieldname-' + this.fieldName);
			var radios = row.find('input.radio');
			var warningMessage = this.warningMessage;
			radios.click(function() {
				$(this).change();
			});
			radios.change(function() {
				row.find('.flash').remove();
				if (this.checked && ($(this).val() == 'n')) row.append('<div class="flash notice">' + warningMessage + '</div>');
			});
			radios.change();
		}

	};
	
	var CountrySelectField = function(fieldName, warningMessage) {
		this.fieldName = fieldName;
		this.warningMessage = warningMessage;
		this.init();
	}
	
	CountrySelectField.prototype = {
		init: function() {
			var row = $('.fieldname-' + this.fieldName);
			var select = row.find('select');
			var options = row.find('option');
			var warningMessage = this.warningMessage;
			
			options.each(function() {
				if (this.text.match(/(ineligible)/)) {
					this.ineligible = true;
					this.text  = this.text.replace(' (ineligible)', '');
				}
			});
			
			select.change(function() {
				row.find('.flash').remove();
				if (this.options[this.selectedIndex].ineligible) row.append('<div class="flash notice">' + warningMessage + '</div>');
			});
			select.change();
		}
	};	
	
	var LanguagesMultipleCheckboxField = function(fieldName) {
		this.fieldName = fieldName;
		this.init();
	}
	
	LanguagesMultipleCheckboxField.prototype = {
		init: function() {
			var row = $('.fieldname-' + this.fieldName);
			var textFieldRow = row.next('.row');
			
			row.addClass('fix-for-ie');
			textFieldRow.addClass('hidden');

			var inputs = row.find('input');
			inputs.click(function() { $(this).change() });
			inputs.change(function() {
				if ($(this).next('label').text().match(/other/i)) {
					if (this.checked) {
						row.removeClass('fix-for-ie');
						textFieldRow.removeClass('hidden');
					} else {
						row.addClass('fix-for-ie');
						textFieldRow.addClass('hidden');
						textFieldRow.find('textarea').val('');
					}
				}
			})
			inputs.change();
		}
	};
	
		$(document).ready(function(){
		$("div.helptext").hide();
		
		$("form div.row:has(div.helptext)").each(function () {
			
			var helptext = $(this).find("div.helptext");
			var label = $(this).find("label:first");
			
			label.append('<img src="' + WFD_STATIC_COMMON + 'img/help.png" />');
			label.find("img").mouseover(function () {
				helptext.fadeIn();
			}).mouseout(function () {
				if(!helptext.keepOnMouseout) helptext.fadeOut();
			});
			
			var pending = false;
			
			$(this).find("input, select, textarea").focus(function () {
				if (pending) window.clearTimeout(pending);
				helptext.fadeIn();
				helptext.keepOnMouseout = true;
			}).blur(function () {
				pending = window.setTimeout(function() {
					helptext.fadeOut();
					helptext.keepOnMouseout = false;
				}, 0);
			});
		});
	});