var iv_ajax = {
	request: function(hash, target, successFunction, errorFunction) {
		new Ajax.Request(target, {
			method: 'post',
			parameters: hash,
			onSuccess: function(transport) { 
				if (iv_ajax._ajax_valid(transport.responseText)) {
					eval('response = '+transport.responseText);
					successFunction.call(response);
				} else {
					errorFunction.call(response);
				}
			},
			onFailure: function(transport) { 
				alert('Error connecting to server ('+target+').'); 
			}
		});
	}, 
	
	_ajax_valid: function(json) {
		if (json.length > 0) {
			eval('response = '+json);		
			if (response) return true;
		}
		return false;
	}
};

var lb = {
	_start_width: 500,
	_start_height: 500,
	_top: 50,
	_max_height: 650,
	_max_width: 900,
	_min_left: 50,
	_base_duration: 1,

	open: function(anchor) {
		// open a full-size lightbox (lb) image
	
		// scroll to top
		$$('body')[0].visualEffect('scrollTo', { duration:lb._base_duration / 4, target:'container'});
		
		var img = new Image();
		var img_url = $(anchor).href;
		
		// overlay
		var d = document.viewport.getDimensions();
		
		img.onclick = lb.close;
		img.onload = function() {
			if ($('lb-image')) {
				var width = img.width > lb._max_width ? lb._max_width : img.width;
				var height = width / img.width * img.height;
				
				if (height > lb._max_height) {
					height = lb._max_height;
					width = height / img.height * img.width;
				}
				
				var left = (d.width / 2) - ((width + 2) / 2);
				$('lb-image').visualEffect('morph', { 
					style: 	'left:'+(left < lb._min_left ? lb._min_left : left)+'px;' +
							'top:'+(lb._top / 2)+'px;' +
							'width:'+(width + 2)+'px;' +
							'height:'+(height + 2)+'px;', 
					duration:lb._base_duration / 2,
					afterFinish:function() {
						if ($('lb-image')) {
							$('lb-image').insert({bottom: $(img).setStyle('width:'+width+'px;height:'+height+'px;')});
						}
					}
				});
			}
		};
		
		if (!$('page-overlay')) {
			$$('body')[0].insert({top: '<div id="page-overlay" style="height:' + d.height + 'px; width:'+ d.width + 'px;display:none;" onclick="lb.close();"></div>'});
			$('page-overlay').visualEffect('appear', { to: .5, duration: lb._base_duration / 4 });
		}
		
		if ($('lb-image')) {
			// lb-image exists, hide the old image and cycle to the next
			var old_img_id = $('lb-image').down('img').identify();		
			$(old_img_id).visualEffect('fade', { duration: lb._base_duration / 4, afterFinish: function() { 
				if ($('lb-image')) $(old_img_id).remove();
			} });
			img.src = img_url;
		} else {
			$('page-overlay').insert({after: '<div id="lb-image" onclick="lb.close();" style="display:none;left:660px;top:330px;"></div>'});
			$('lb-image').insert({bottom: '<div class="close-button" onclick="lb.close();"></div>'});
			$('lb-image').visualEffect('appear', { duration: lb._base_duration / 4 });
			$('lb-image').visualEffect('morph', { 
				duration: lb._base_duration / 4, 
				style:	 'left:'+((d.width / 2) - (lb._start_width / 2))+'px;' +
						'top:'+lb._top+'px;' +
						'width:'+lb._start_width+'px;' +
						'height:'+lb._start_height+'px;',
				afterFinish: function() {
					img.src = img_url;
				}
			});
		}
	},
	
	close: function() {
		// close the full size image viewer
		if ($('lb-image')) {
			$('lb-image').remove();
		}

		if ($('page-overlay')) {
			$('page-overlay').visualEffect('fade', { duration: lb._base_duration / 4, afterFinish: function() {
				if ($('page-overlay')) {
					$('page-overlay').remove();
				}
			}});
		}
	}
};

var iv_tabs = {
	switchTo: function(link, index) {
		if (!link.hasClassName('active')) {
			var parent = link.up('.tabs');
			parent.down('.active').removeClassName('active');
			link.addClassName('active');
			
			while (!parent.next('.tab-content')) {
				parent = parent.up();
			}
			parent.next('.tab-content.active').removeClassName('active').hide();
			parent.next('.tab-content', index).addClassName('active').show();
		}
	}
};

var iv_slides = {
	_effect_duration: .5,
	_auto_switch_delay: 5,
	
	container: 0,
	moving: false,
	total: 0,
	current: 0,
	interval: 0,
	timeout: 0,
	
	init: function(container) {
		iv_slides.container = container;
		iv_slides.total = container.select('.slide').length;
		container.select('.box').each(function(s, i) { s.onmouseover = function() {
			window.clearInterval(iv_slides.interval); 
			iv_slides.switchTo(i); 
		}; });
		
		container.select('.slide').each(function(s, i) {
			s.setStyle('z-index:'+(i == iv_slides.current ? 2 : 1)+';');
		});
		
		iv_slides.interval = window.setInterval(iv_slides.next, (iv_slides._auto_switch_delay + iv_slides._effect_duration) * 1000);
	},
	
	next: function() {
		iv_slides.switchTo((iv_slides.current + 1) % iv_slides.total);
	},
	
	switchTo: function(index) {
		if (iv_slides.current != index) {
			iv_slides.container.down('.slide', iv_slides.current).visualEffect('fade', { 
				duration: iv_slides._effect_duration,
				beforeStart: function() {
					window.clearTimeout(iv_slides.timeout);
					iv_slides.container.down('.slide', iv_slides.current).show().setStyle('z-index:2;');
					iv_slides.container.down('.slide', index).setStyle('z-index:1;').show();					
					iv_slides.current = index;
					// webkit returns null instead of 0px
					var left = iv_slides.container.down('.box', iv_slides.current).getStyle('left');
					left = (left == null ? '0px' : left);
					iv_slides.container.down('.promo-arrow').setStyle('left:'+left);
				}, afterFinish: function() {
					iv_slides.timeout = window.setTimeout(iv_slides.check_slide, 500);
				},
				queue: {position:'end', scope: 'slider', limit:3}
			});
		}
	}, check_slide: function() {
		for (var i = 0, j = iv_slides.total; i < j; ++i) {
			if (iv_slides.container.down('.slide', i).visible()) {
				return;
			}
		}
		iv_slides.container.down('.slide', iv_slides.current).show();
	}
};

var iv_quote = {
	_duration: .4,
	_menu_height: 42,
	_menu_color: '#001f57',
	_current_menu_color: '#fff',
	_minimum_devices: 5,

	currentPrice: 0,
	devices: 0,
	container: 0,
	current: 0,
	moving: false,
	totalSteps: 0,
	submitting: false,
	
	saved:false,
	oldFinal: '',
	
	
	init: function(container, target) {
		iv_quote.container = container;
		iv_quote.current = 0;
		iv_quote.moving = false;
		iv_quote.totalSteps = container.select('.quote-step').length;
		iv_quote.target = target;
		
		iv_quote.container.select('.qty').each(function(s) {
			s.observe('keydown', iv_quote.updateNumeric);
			s.observe('keyup', iv_quote.updateNumeric);
		});
		
		var window_height = iv_quote.container.down('.quote-step', iv_quote.current).getDimensions().height;
		
		iv_quote.container.down('.window').setStyle('height:'+window_height+'px;');
		iv_quote.container.down('.quote-toc').down('li', iv_quote.current).addClassName('current');
		iv_quote.container.down('.wrapper').setStyle('top:'+(iv_quote.current * iv_quote._menu_height)+'px;');
		
		iv_quote.container.select('.slider .slider-content').each(function(s, i) {
			if (i > 0) {
				s.hide();
			} else {
				s.previous('.slider-title').addClassName('open');
			}
		});
		
		iv_quote.updatePrice();
	},
	
	toggle: function(el) {
		if (el.hasClassName('checked')) {
			if (el.hasClassName('unique')) {
				return;
			}
			el.removeClassName('checked');
		} else {
			if (el.hasClassName('unique')) {
				if (el.previous('.checked')) {
					if (el.previous('.checked').hasClassName('box')) {
						el.previous('.checked').down('.base .choose').update('Choose');
					}
					el.previous('.checked').removeClassName('checked');
				} else if (el.next('.checked')) {
					if (el.next('.checked').hasClassName('box')) {
						el.next('.checked').down('.base .choose').update('Choose');
					}
					el.next('.checked').removeClassName('checked');
				}
				if (el.hasClassName('box')) {
					el.down('.base .choose').update('Chosen');
				}			
			}
			el.addClassName('checked');
		}
		
		iv_quote.updatePrice();
	},
	
	toggleModifier: function(el) {
		if (el.hasClassName('checked-mod')) {
			if (el.hasClassName('unique')) {
				return;
			}
			el.removeClassName('checked-mod');
		} else {
			if (el.hasClassName('unique')) {
				if (el.previous('.checked-mod')) {
					el.previous('.checked-mod').removeClassName('checked-mod');
				} else if (el.next('.checked-mod')) {
					el.next('.checked-mod').removeClassName('checked-mod');
				}
			}
			el.addClassName('checked-mod');
		}
		iv_quote.updateOptionPrice(el.up('.base-option'));
		iv_quote.updatePrice();
	},
	
	updateOptionPrice: function(el) {
		var bp = $F(el.down('.base-price-val')) * 1;
		var dp = 0;

		el.select('.checked-mod').each(function(s) {
			bp += $F(s.down('.m-price-val')) * 1;
		});
		el.select('select').each(function(s) {
			if ($(s.options[s.selectedIndex]).hasClassName('opt-device-modifier')) {
				bp += $F(s).split(':')[0];
				dp += $F(s).split(':')[1];
			} else {
				bp += $F(s) * 1;
			}
		});
		if (!el.hasClassName('numeric')) {
			el.select('.numeric').each(function(s) {
				bp += $F(s.down('.qty')) * $F(s.down('.m-price-val'));
			});
		}
		el.down('.price-val').value = bp * 1;
		el.select('.option-price').each(function(s) {
			s.update('$'+formatCurrency(bp));
		});
		
		if (el.down('.device-price-val')) {
			el.down('.device-price-val').value = dp * 1;
			el.select('.dev-price').each(function(s) {
				s.update('(+$'+formatCurrency(dp)+' per device)');
			});
		}
		
		iv_quote.updatePrice();
	},
	
	updateNumeric: function(event) {
		/* assuming numeric for now - use something like the below when we're done
		
		var keyCode = (event.which === undefined) ? event.keyCode : event.which;

		isNumeric = (keyCode >= 48 && keyCode <= 57) || (keyCode >= 96 && keyCode <= 105);
		modifiers = (event.altKey || event.ctrlKey || event.shiftKey);
		if (!isNumeric || modifiers) {
			
		}; */
		var el = event.element();

		if (el.hasClassName('mod')) {
			iv_quote.updateOptionPrice(el.up('.base-option'));
		} else {
			iv_quote.updatePrice();
		}
	},
	
	nextStep: function() {
		iv_quote.changeStep((iv_quote.current + 1) % iv_quote.totalSteps);
	},
	
	changeStep: function(index) {
		if (!iv_quote.moving) {
			if (iv_quote.container.down('.quote-step', index)) {
				iv_quote.moving = true;
				iv_quote.current = index;
				
				if (iv_quote.container.down('.quote-step', iv_quote.current).down('.slider')) {
					iv_quote.container.down('.quote-step', iv_quote.current).select('.slider .slider-content').each(function(s, i) {
						s.expandedHeight = s.getDimensions().height;
					});
				}
				
				var wh = iv_quote.container.down('.quote-step', iv_quote.current).getDimensions().height;
				var offset = iv_quote.container.down('.quote-step', iv_quote.current).positionedOffset().top;
				
				iv_quote.container.down('.window').visualEffect('morph', {duration:iv_quote._duration, style:'height:'+wh+'px;'});
				iv_quote.container.down('.scroller').visualEffect('morph', {duration:iv_quote._duration, style:'top:-'+offset+'px;' });
				
				iv_quote.container.down('.quote-toc').down('.current').removeClassName('current').visualEffect('morph', { 
					duration:iv_quote._duration,
					style: 'color:'+iv_quote._menu_color
				});
				iv_quote.container.down('.quote-toc').down('li', iv_quote.current).visualEffect('morph', { 
					duration:iv_quote._duration,
					style: 'color:'+iv_quote._current_menu_color
				});
				
				iv_quote.container.down('.wrapper').visualEffect('morph', {
					duration:iv_quote._duration, 
					style:'top:'+(iv_quote.current * iv_quote._menu_height)+'px;', 
					afterFinish:function() {
						if (iv_quote.current == (iv_quote.totalSteps - 1)) {
							iv_quote.container.down('.quote-footer .button').hide();
						} else {
							iv_quote.container.down('.quote-footer .button').show();
						}
						iv_quote.container.down('.quote-toc').down('li', iv_quote.current).addClassName('current');
						iv_quote.moving = false;
					}
				});
			}
		}
	},
	
	updatePrice: function() {
		if (iv_quote.saved) {
			iv_quote.saved = false;
			iv_quote.container.down('.quote-step.final').update(iv_quote.oldFinal);
			iv_quote.container.down('.quote-step.final .submit').visualEffect('appear', { duration:0});
		}
		iv_quote._calculatePrice();
		iv_quote.container.down('.quote-footer .total .price').update('$' + formatCurrency(iv_quote.currentPrice));
	},
	
	_calculatePrice: function() {
		iv_quote.currentPrice = 0;
		
		iv_quote.container.down('.quote-content').select('.checked .price-val').each(function(s) {
			if (!s.up('#q-annual-maintenance')) {
				iv_quote.currentPrice += $F(s) * 1;
			}
		});
		
		iv_quote.container.down('.quote-content').select('.base-option.numeric').each(function(s) {
			if (!s.up('#q-annual-maintenance')) {
				iv_quote.currentPrice += $F(s.down('.price-val')) * $F(s.down('.qty'));
			}
		});

		iv_quote.container.down('.quote-content').select('.numeric .numeric').each(function(s) {
			if (!s.up('#q-annual-maintenance')) {
				iv_quote.currentPrice += $F(s.down('.m-price-val')) * $F(s.down('.qty'));
			}
		});
		
		var devices = 0;
		var device_price = 0;
		
		iv_quote.container.down('.quote-content').select('.base-option.device').each(function(s) {
			if (!s.up('#q-annual-maintenance')) {
				if (s.hasClassName('numeric')) {
					devices += $F(s.down('.qty')) * 1;
				} else if (s.hasClassName('checked')) {
					devices += 1;
				}
			}
		});
		
		devices = (devices < iv_quote._minimum_devices) ? iv_quote._minimum_devices : devices;
		
		iv_quote.container.down('.quote-content').select('.base-option.device-modifier').each(function(s) {
			if (s.identify() != 'q-annual-maintenance') {
				if (s.hasClassName('numeric')) {
					device_price += ($F(s.down('.qty')) * $F(s.down('.device-price-val'))) * 1;
				} else if (s.hasClassName('checked')) {
					device_price += $F(s.down('.device-price-val')) * 1;
				}
			}
		});
	
		iv_quote.currentPrice += (device_price * devices);
		
		// annual maintenance
		var support_price = 0;
		if (devices == 5) {
			support_price = devices * 65;
		} else if (devices < 11) {
			support_price = devices * 60;
		} else if (devices < 21) {
			support_price = devices * 58;
		} else if (devices < 31) {
			support_price = devices * 56;
		} else if (devices < 41) {
			support_price = devices * 52;
		} else {
			support_price = devices * 48;
		}
		
		iv_quote.currentPrice += support_price;
		iv_quote.devices = devices;
		
		$('q-annual-maintenance').down('.big-price').update('$'+formatCurrency(support_price)); 
	},
	
	submit: function() {
		// quote[]: element-id::name::price::device_price::is_device::quantity	
		var valid = true;
		
		iv_quote.container.select('.form-error').each(function(s) { s.remove(); });
		
		if ($F('qf-name').trim().length == 0) {
			valid = false;
			$('qf-name').insert({after: '<span class="form-error">This field is required.</span>'});
		}
		
		if ($F('qf-phone').trim().length == 0) {
			valid = false;
			$('qf-phone').insert({after: '<span class="form-error">This field is required.</span>'});
		} else {
			if (!validPhone($F('qf-phone').trim())) {
				valid = false;
				$('qf-phone').insert({after: '<span class="form-error">Your phone number is in an invalid format.</span>'});
			}
		}
			
		if ($F('qf-email').trim().length == 0) {
			valid = false;
			$('qf-email').insert({after: '<span class="form-error">This field is required.</span>'});
		} else {
			if (!validEmail($F('qf-email').trim())) {
				valid = false;
				$('qf-email').insert({after: '<span class="form-error">Your email address is in an invalid format.</span>'});
			}
		}
		
		if (valid) {
			iv_quote.submitting = true;
			
			var option_array = [];
			var option_modifier_array = [];
			var id, name, base_id = '';
			var price, device_price, is_device, quantity = 0;
			
			$$('.base-option').each(function(s) {
				id = s.identify();
				name = s.down('h3 label') ? s.down('h3 label').innerHTML : s.down('h3').innerHTML;
				is_device = s.hasClassName('device') ? 1 : 0;
				if (id == 'q-annual-maintenance') {
					if (iv_quote.devices == 5) {
						price = 65;
					} else if (iv_quote.devices < 11) {
						price = 60;
					} else if (iv_quote.devices < 21) {
						price = 58;
					} else if (iv_quote.devices < 31) {
						price = 56;
					} else if (iv_quote.devices < 41) {
						price = 52;
					} else {
						price = 48;
					}
					device_price = 0;
					quantity = iv_quote.devices;
				} else {
					price = $F(s.down('.price-val'));
					device_price = s.down('.device-price-val') ? $F(s.down('.device-price-val')) : 0;
					quantity = s.hasClassName('numeric') ? $F(s.down('.qty')) : (s.hasClassName('checked') ? 1 : 0);
				}
				option_array.push(id + '::' + name + '::' + price + '::' + device_price + '::' + is_device + '::' + quantity);
			});
			
			$$('.option-modifier').each(function(s) {
				id = s.identify();
				base_id = s.up('.base-option').identify();
				name = s.down('.name') ? s.down('.name').innerHTML : s.innerHTML;
				price = s.down('.m-price-val') ? $F(s.down('.m-price-val')) : (s.hasClassName('opt-device-modifier') ? s.value.split(':')[0] : s.value);
				device_price = s.down('.device-price-val') ? $F(s.down('.device-price-val')) : (s.hasClassName('opt-device-modifier') ? s.value.split(':')[1] : 0);
				is_device = s.hasClassName('device') ? 1 : 0;
				
				if (s.tagName.toLowerCase() == 'option') {
					quantity = $(s.up('select').options[s.up('select').selectedIndex]).identify() == id ? 1 : 0;
				} else {
					quantity = s.hasClassName('numeric') ? $F(s.down('.qty')) : (s.hasClassName('checked-mod') ? 1 : 0);
				}
				
				option_modifier_array.push(id + '::' + base_id + '::' + name + '::' + price + '::' + device_price + '::' + is_device + '::' + quantity);
			});
			
			hash = {
				'quote[]': option_array, 
				'quote-modifiers[]': option_modifier_array, 
				'quote-total': iv_quote.currentPrice, 
				'device-total': iv_quote.devices,
				'name': $F('qf-name'), 
				'phone': $F('qf-phone'), 
				'email': $F('qf-email')
			};
			
			iv_quote.container.down('.quote-step.final .submit').visualEffect('fade', { duration: .25, to:.5 });
			iv_ajax.request(hash, iv_quote.target, iv_quote.response, iv_quote.error);
		}
	},
	
	response: function() {
		iv_quote.container.down('.quote-step.final .submit').visualEffect('appear', { duration: 0 });
		iv_quote.oldFinal = iv_quote.container.down('.quote-step.final').innerHTML;
		iv_quote.saved = true;
		iv_quote.container.down('.quote-step.final').update('<p>Thank you for submitting your quote. To recall this quote at any time, enter the following quote number:</p><h3>'+this.quote_number+'</h3>');
		iv_quote.submitting = false;
	},
	
	error: function() {
		alert('There was an error saving your quote. Please try again later.');
		iv_quote.container.down('.quote-step.final .submit').visualEffect('appear', { duration: .25 });
		iv_quote.submitting = false;
	}
};

var iv_slider = {
	_duration: .25,
	
	toggle: function() {
		var t = $(this);
		if (!t.hasClassName('moving')) {
			t.addClassName('moving');
			
			if (t.up('.quote-step')) {
				var wh = t.up('.quote-step').getDimensions().height;
			}
			
			if (t.hasClassName('open')) {
				t.next('.slider-content').visualEffect('blind_up', {
					duration: iv_slider._duration, 
					afterFinish: function() {
						t.removeClassName('open');
						t.removeClassName('moving');
					}
				});
				
				if (t.up('.quote-step')) {
					iv_quote.container.down('.window').visualEffect('morph', {duration:iv_slider._duration, style:'height:'+((wh - t.next('.slider-content').expandedHeight) * 1)+'px;'});
				}
				
			} else {
				t.next('.slider-content').visualEffect('blind_down', { 
					duration: iv_slider._duration, 
					afterFinish:function() {
						t.addClassName('open');
						t.removeClassName('moving');
					}
				});
				
				if (t.up('.quote-step')) {
					iv_quote.container.down('.window').visualEffect('morph', {duration:iv_slider._duration, style:'height:'+((wh + t.next('.slider-content').expandedHeight) * 1)+'px;'});
				}
			}
		}
	}
};

var iv_forms = {
	thanks_page: '',
	submitting: false,
	form: 0,
	
	submit: function(form, thanks) {
		if (!iv_forms.submitting) {
			if (iv_forms.valid(form)) {
				iv_forms.submitting = true;
				iv_forms.form = form;
				iv_forms.thanks_page = thanks;
				
				var target = iv_forms.form.action;
				
				iv_ajax.request(iv_forms.form.serialize(true), target, iv_forms.thanks, iv_forms.error);
				iv_forms.form.down('input[type=submit]').visualEffect('fade', { duration:.25, to:.5 });
			} else {
				new Effect.ScrollTo(form.down('.form-error'), { duration:.25, offset: -50 }); 
			}
		}
	},
	
	valid: function(form) {
		var v = true;
		// clear old errors
		form.select('.form-error').each(function(s) { s.remove(); });
		
		form.select('input.required', 'textarea.required').each(function(s) {
			if ($F(s).trim().length == 0) {
				s.insert({after: '<span class="form-error">This field is required.</span>'});
				v = false;
			} else {
				if (s.hasClassName('phone') && !validPhone($F(s).trim())) {
					s.insert({after: '<span class="form-error">Your phone number is in an invalid format.</span>'});
					v = false;
				} else if (s.hasClassName('email') && !validEmail($F(s).trim())) {
					s.insert({after: '<span class="form-error">Your email address is in an invalid format.</span>'});
					v = false;
				}
			}
		});
		
		return v;
	},
	
	thanks: function() {
		window.location = iv_forms.thanks_page;
	},
	
	error: function() {
		alert('There was an error submitting your form.  Please try again later.');
		iv_forms.form.down('input[type=submit]').visualEffect('appear', { duration:.25 });
	}
};

function formatCurrency(num) {
	// returns a number formatted like currency (27,050.38) without a currency symbol
    num = isNaN(num) || num === '' || num === null ? 0.00 : num;
	num = parseFloat(num).toFixed(2);
	
	if (num > 999) {
		// add commas
		num = num + ''; // convert to string
		var end = num.substring(num.length - 6);
		var commafy = num.substring(0, num.length - 6);
		while (commafy.length > 0) {
			if (commafy.length > 2) {
				end = commafy.substring(commafy.length - 3) + ',' + end;
				commafy = commafy.substring(0, commafy.length - 3);
			} else {
				end = commafy + ',' + end;
				commafy = '';
			}
		}
		num = end;
	}
    return num;
}

document.observe('dom:loaded', function() {
	$$('a[rel=offsite]').each(function(s) { s.target = "_blank"; });
	$$('a[rel=file]').each(function(s) { s.target = "_blank"; });
	$$('a[rel=lightbox]').each(function(s) { 
		s.onclick = function() {
			lb.open(s);
			return false;
		};
	});
	$$('.toc.tabs').each(function(toc) {
		toc.select('li').each(function(s, i) { s.onclick = function() {
			iv_tabs.switchTo(s, i);
		}; });
	});
	$$('.slider .slider-title').each(function(s) {
		s.onclick = iv_slider.toggle;
	});
});

function validEmail(email) {
	return /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/.test(email);
}

function validPhone(phone){  
	return /^\(?(\d{3})\)?[-| |\.]?(\d{3})[-| |\.]?(\d{4})$/.test(phone); 
}