// Infinite Carousel (Customized for Tower Inspection)
(function () {
    $.fn.infiniteCarousel = function () {
	function repeat(str, n) {
	    return new Array( n + 1 ).join(str);
	}
	
	return this.each(function () {
			
	    var $wrapper = $('> div.wrapper', this).css('overflow', 'hidden'),
		$slider = $wrapper.find('> ul#staff-carousel').width(99999),
		$items = $slider.find('> li.staff-slide'),
		$single = $items.filter(':first')
		
		singleWidth = $single.outerWidth(),
		visible = Math.ceil($wrapper.innerWidth() / singleWidth),
		currentPage = 1,
		pages = Math.ceil($items.length / visible);
		
		
	    if ($items.length % visible != 0) {
		    
		$slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
		$items = $slider.find('> li');
	    }
	    
	    
	    $items.filter(':first').before($items.slice(-visible).clone().addClass('cloned'));
	    $items.filter(':last').after($items.slice(0, visible).clone().addClass('cloned'));
	    $items = $slider.find('> li');
	    
	    
	    $wrapper.scrollLeft(singleWidth * visible);
	    
	    
	    function gotoPage(page) {
		var dir = page < currentPage ? -1 : 1,
		    n = Math.abs(currentPage - page),
		    left = singleWidth * dir * visible * n;
		
		$wrapper.filter(':not(:animated)').animate({
		    scrollLeft : '+=' + left
		}, 650, function () {
			
		    if (page > pages) {
			$wrapper.scrollLeft(singleWidth * visible);
			page = 1;
		    } else if (page == 0) {
			page = pages;
			$wrapper.scrollLeft(singleWidth * visible * pages);
		    }
		    
		    currentPage = page;
		});
	    }
	    
	    $('a.previous').click(function () {
		gotoPage(currentPage - 1);
		return false;
	    });
	    
	    $('a.next').click(function () {
		gotoPage(currentPage + 1);
		return false;
	    });
	    
	    $(this).bind('goto', function (event, page) {
		gotoPage(page);
	    });
	    
	    $(this).bind('next', function () {
		gotoPage(currentPage + 1);
	    });
	    
	    $(this).bind('stop', function () {
		;
	    });
	});
    };
})(jQuery);

// DOM-Ready Scripts
$(document).ready(function() {
	
	/* Window Magic */
	// Sniffs the browser window HxW
	var winH = $(window).height();
	var winW = $(window).width();
	
	// Set each page equal to the window height (Note: Keeps min-height set in CSS)
	$('.content').height(winH);
	
	// Set Page Threshholds
	if(winH<=800) {
		var pageTotal = 4900;
	} else {
		var pageTotal = 5*(winH+180);
	}
	var posHome = (pageTotal*0.2)-($('#home').height()*0.4);
	var posInspection = (pageTotal*0.4)-($('#inspection').height()*0.4);
	var posInstallation = (pageTotal*0.6)-($('#installation').height()*0.4);
	var posAboutUs = (pageTotal*0.8)-($('#about-us').height()*0.4);
	var posContactUs = pageTotal-($('#contact-us').height()*0.4);
	
	
	// Set initial Navigation State
	var startPosTop = $(this).scrollTop();
	if( startPosTop <= posHome ) {
		// If in #home State
		if($('#nav-home a').hasClass('deactive')) {
			$('#nav-home a').removeClass('deactive');
		}
		if($('#nav-home a').hasClass('deactive-next')) {
			$('#nav-home a').removeClass('deactive-next');
		}
		if($('#nav-inspection a').hasClass('deactive-next')) {
			$('#nav-inspection a').removeClass('deactive-next');
		}
		if($('#nav-installation a').hasClass('deactive-next')) {
			$('#nav-installation a').removeClass('deactive-next');
		}
		if($('#nav-about-us a').hasClass('deactive-next')) {
			$('#nav-about-us a').removeClass('deactive-next');
		}
		if($('#nav-contact-us a').hasClass('deactive-next')) {
			$('#nav-contact-us a').removeClass('deactive-next');
		}
		if(!$('#nav-inspection a').hasClass('deactive')) {
			$('#nav-inspection a').addClass('deactive');
		}
		if(!$('#nav-installation a').hasClass('deactive')) {
			$('#nav-installation a').addClass('deactive');
		}
		if(!$('#nav-about-us a').hasClass('deactive')) {
			$('#nav-about-us a').addClass('deactive');
		}
		if(!$('#nav-contact-us a').hasClass('deactive')) {
			$('#nav-contact-us a').addClass('deactive');
		}
	} else {
		if( startPosTop < posInspection ) {
			// If in #inspection State
			if(!$('#nav-home a').hasClass('deactive-next')) {
				$('#nav-home a').addClass('deactive-next');
			}
			if($('#nav-inspection a').hasClass('deactive-next')) {
				$('#nav-inspection a').removeClass('deactive-next');
			}
			if($('#nav-installation a').hasClass('deactive-next')) {
				$('#nav-installation a').removeClass('deactive-next');
			}
			if($('#nav-about-us a').hasClass('deactive-next')) {
				$('#nav-about-us a').removeClass('deactive-next');
			}
			if($('#nav-contact-us a').hasClass('deactive-next')) {
				$('#nav-contact-us a').removeClass('deactive-next');
			}
			if($('#nav-inspection a').hasClass('deactive')) {
				$('#nav-inspection a').removeClass('deactive');
			}
			if(!$('#nav-installation a').hasClass('deactive')) {
				$('#nav-installation a').addClass('deactive');
			}
			if(!$('#nav-about-us a').hasClass('deactive')) {
				$('#nav-about-us a').addClass('deactive');
			}
			if(!$('#nav-contact-us a').hasClass('deactive')) {
				$('#nav-contact-us a').addClass('deactive');
			}
		} else {
			if($('#nav-home a').hasClass('deactive-next')) {
				$('#nav-home a').removeClass('deactive-next');
			}
			if(!$('#nav-home a').hasClass('deactive')) {
				$('#nav-home a').addClass('deactive');
			}
			if( startPosTop < posInstallation ) {
				// If in #installation State
				if(!$('#nav-inspection a').hasClass('deactive-next')) {
					$('#nav-inspection a').addClass('deactive-next');
				}
				if($('#nav-installation a').hasClass('deactive')) {
					$('#nav-installation a').removeClass('deactive');
				}
				if($('#nav-installation a').hasClass('deactive-next')) {
					$('#nav-installation a').removeClass('deactive-next');
				}
				if($('#nav-about-us a').hasClass('deactive-next')) {
					$('#nav-about-us a').removeClass('deactive-next');
				}
				if($('#nav-contact-us a').hasClass('deactive-next')) {
					$('#nav-contact-us a').removeClass('deactive-next');
				}
				if(!$('#nav-about-us a').hasClass('deactive')) {
					$('#nav-about-us a').addClass('deactive');
				}
				if(!$('#nav-contact-us a').hasClass('deactive')) {
					$('#nav-contact-us a').addClass('deactive');
				}
			} else {
				if(!$('#nav-inspection a').hasClass('deactive')) {
					$('#nav-inspection a').addClass('deactive');
				}
				if(!$('#nav-installation a').hasClass('deactive-next')) {
					$('#nav-installation a').addClass('deactive-next');
				}
				if( startPosTop < posAboutUs ) {
					// If in #about-us State
					if($('#nav-about-us a').hasClass('deactive')) {
						$('#nav-about-us a').removeClass('deactive');
					}
					if($('#nav-home a').hasClass('deactive-next')) {
						$('#nav-home a').removeClass('deactive-next');
					}
					if($('#nav-inspection a').hasClass('deactive-next')) {
						$('#nav-inspection a').removeClass('deactive-next');
					}
					if($('#nav-about-us a').hasClass('deactive-next')) {
						$('#nav-about-us a').removeClass('deactive-next');
					}
					if($('#nav-contact-us a').hasClass('deactive-next')) {
						$('#nav-contact-us a').removeClass('deactive-next');
					}
					if(!$('#nav-contact-us a').hasClass('deactive')) {
						$('#nav-contact-us a').addClass('deactive');
					}
				} else {
					if($('#nav-installation a').hasClass('deactive-next')) {
						$('#nav-installation a').removeClass('deactive-next');
					}
					if(!$('#nav-installation a').hasClass('deactive')) {
						$('#nav-installation a').addClass('deactive');
					}
					if( startPosTop < posContactUs ) {
						// If in #contact-us State
						if($('#nav-contact-us a').hasClass('deactive')) {
							$('#nav-contact-us a').removeClass('deactive');
						}
						if($('#nav-home a').hasClass('deactive-next')) {
							$('#nav-home a').removeClass('deactive-next');
						}
						if($('#nav-inspection a').hasClass('deactive-next')) {
							$('#nav-inspection a').removeClass('deactive-next');
						}
						if(!$('#nav-about-us a').hasClass('deactive-next')) {
							$('#nav-about-us a').addClass('deactive-next');
						}
						if($('#nav-contact-us a').hasClass('deactive-next')) {
							$('#nav-contact-us a').removeClass('deactive-next');
						}
					} else {
						// Off-screen below #contact-us State defaults to #contact-us
						if(!$('#nav-about-us a').hasClass('deactive-next')) {
							$('#nav-about-us a').addClass('deactive-next');
						}
						if($('#nav-contact-us a').hasClass('deactive')) {
							$('#nav-contact-us a').removeClass('deactive');
						}
						if($('#nav-home a').hasClass('deactive-next')) {
							$('#nav-home a').removeClass('deactive-next');
						}
						if($('#nav-installation a').hasClass('deactive-next')) {
							$('#nav-installation a').removeClass('deactive-next');
						}
						if($('#nav-inspection a').hasClass('deactive-next')) {
							$('#nav-inspection a').removeClass('deactive-next');
						}
						if($('#nav-contact-us a').hasClass('deactive-next')) {
							$('#nav-contact-us a').removeClass('deactive-next');
						}
						
					}
				}
			}
		}
	}
	
	// Navigation State Updating
	$(window).scroll( function() {
		var posTop = $(this).scrollTop();
		if( posTop <= posHome ) {
			// If in #home State
			if($('#nav-home a').hasClass('deactive')) {
				$('#nav-home a').removeClass('deactive');
			}
			if($('#nav-home a').hasClass('deactive-next')) {
				$('#nav-home a').removeClass('deactive-next');
			}
			if($('#nav-inspection a').hasClass('deactive-next')) {
				$('#nav-inspection a').removeClass('deactive-next');
			}
			if($('#nav-installation a').hasClass('deactive-next')) {
				$('#nav-installation a').removeClass('deactive-next');
			}
			if($('#nav-about-us a').hasClass('deactive-next')) {
				$('#nav-about-us a').removeClass('deactive-next');
			}
			if($('#nav-contact-us a').hasClass('deactive-next')) {
				$('#nav-contact-us a').removeClass('deactive-next');
			}
			if(!$('#nav-inspection a').hasClass('deactive')) {
				$('#nav-inspection a').addClass('deactive');
			}
			if(!$('#nav-installation a').hasClass('deactive')) {
				$('#nav-installation a').addClass('deactive');
			}
			if(!$('#nav-about-us a').hasClass('deactive')) {
				$('#nav-about-us a').addClass('deactive');
			}
			if(!$('#nav-contact-us a').hasClass('deactive')) {
				$('#nav-contact-us a').addClass('deactive');
			}
		} else {
			if( posTop < posInspection ) {
				// If in #inspection State
				if(!$('#nav-home a').hasClass('deactive-next')) {
					$('#nav-home a').addClass('deactive-next');
				}
				if($('#nav-inspection a').hasClass('deactive-next')) {
					$('#nav-inspection a').removeClass('deactive-next');
				}
				if($('#nav-installation a').hasClass('deactive-next')) {
					$('#nav-installation a').removeClass('deactive-next');
				}
				if($('#nav-about-us a').hasClass('deactive-next')) {
					$('#nav-about-us a').removeClass('deactive-next');
				}
				if($('#nav-contact-us a').hasClass('deactive-next')) {
					$('#nav-contact-us a').removeClass('deactive-next');
				}
				if($('#nav-inspection a').hasClass('deactive')) {
					$('#nav-inspection a').removeClass('deactive');
				}
				if(!$('#nav-installation a').hasClass('deactive')) {
					$('#nav-installation a').addClass('deactive');
				}
				if(!$('#nav-about-us a').hasClass('deactive')) {
					$('#nav-about-us a').addClass('deactive');
				}
				if(!$('#nav-contact-us a').hasClass('deactive')) {
					$('#nav-contact-us a').addClass('deactive');
				}
			} else {
				if($('#nav-home a').hasClass('deactive-next')) {
					$('#nav-home a').removeClass('deactive-next');
				}
				if(!$('#nav-home a').hasClass('deactive')) {
					$('#nav-home a').addClass('deactive');
				}
				if( posTop < posInstallation ) {
					// If in #installation State
					if(!$('#nav-inspection a').hasClass('deactive-next')) {
						$('#nav-inspection a').addClass('deactive-next');
					}
					if($('#nav-installation a').hasClass('deactive')) {
						$('#nav-installation a').removeClass('deactive');
					}
					if($('#nav-installation a').hasClass('deactive-next')) {
						$('#nav-installation a').removeClass('deactive-next');
					}
					if($('#nav-about-us a').hasClass('deactive-next')) {
						$('#nav-about-us a').removeClass('deactive-next');
					}
					if($('#nav-contact-us a').hasClass('deactive-next')) {
						$('#nav-contact-us a').removeClass('deactive-next');
					}
					if(!$('#nav-about-us a').hasClass('deactive')) {
						$('#nav-about-us a').addClass('deactive');
					}
					if(!$('#nav-contact-us a').hasClass('deactive')) {
						$('#nav-contact-us a').addClass('deactive');
					}
				} else {
					if(!$('#nav-inspection a').hasClass('deactive')) {
						$('#nav-inspection a').addClass('deactive');
					}
					if(!$('#nav-installation a').hasClass('deactive-next')) {
						$('#nav-installation a').addClass('deactive-next');
					}
					if( posTop < posAboutUs ) {
						// If in #about-us State
						if($('#nav-about-us a').hasClass('deactive')) {
							$('#nav-about-us a').removeClass('deactive');
						}
						if($('#nav-home a').hasClass('deactive-next')) {
							$('#nav-home a').removeClass('deactive-next');
						}
						if($('#nav-inspection a').hasClass('deactive-next')) {
							$('#nav-inspection a').removeClass('deactive-next');
						}
						if($('#nav-about-us a').hasClass('deactive-next')) {
							$('#nav-about-us a').removeClass('deactive-next');
						}
						if($('#nav-contact-us a').hasClass('deactive-next')) {
							$('#nav-contact-us a').removeClass('deactive-next');
						}
						if(!$('#nav-contact-us a').hasClass('deactive')) {
							$('#nav-contact-us a').addClass('deactive');
						}
					} else {
						if($('#nav-installation a').hasClass('deactive-next')) {
							$('#nav-installation a').removeClass('deactive-next');
						}
						if(!$('#nav-installation a').hasClass('deactive')) {
							$('#nav-installation a').addClass('deactive');
						}
						if( posTop < posContactUs ) {
							// If in #contact-us State
							if($('#nav-contact-us a').hasClass('deactive')) {
								$('#nav-contact-us a').removeClass('deactive');
							}
							if($('#nav-home a').hasClass('deactive-next')) {
								$('#nav-home a').removeClass('deactive-next');
							}
							if($('#nav-inspection a').hasClass('deactive-next')) {
								$('#nav-inspection a').removeClass('deactive-next');
							}
							if(!$('#nav-about-us a').hasClass('deactive-next')) {
								$('#nav-about-us a').addClass('deactive-next');
							}
							if($('#nav-contact-us a').hasClass('deactive-next')) {
								$('#nav-contact-us a').removeClass('deactive-next');
							}
						} else {
							// Off-screen below #contact-us State defaults to #contact-us
							if(!$('#nav-about-us a').hasClass('deactive-next')) {
								$('#nav-about-us a').addClass('deactive-next');
							}
							if($('#nav-contact-us a').hasClass('deactive')) {
								$('#nav-contact-us a').removeClass('deactive');
							}
							if($('#nav-home a').hasClass('deactive-next')) {
								$('#nav-home a').removeClass('deactive-next');
							}
							if($('#nav-installation a').hasClass('deactive-next')) {
								$('#nav-installation a').removeClass('deactive-next');
							}
							if($('#nav-inspection a').hasClass('deactive-next')) {
								$('#nav-inspection a').removeClass('deactive-next');
							}
							if($('#nav-contact-us a').hasClass('deactive-next')) {
								$('#nav-contact-us a').removeClass('deactive-next');
							}
							
						}
					}
				}
			}
		}
	}); 
	
	/* Link Magic */
	// Nav Link clicks
	$('a.navitem').click( function() {
		$.scrollTo( this.hash, 600, { easing: 'easeInOutQuart' });
		return false;
	});
	
	// Internal #hash Link clicks
	$('a.internal').click( function() {
		$.scrollTo( this.hash, 600, { easing: 'easeInOutQuart' });
		return false;
	});
	
	// Disables Disabled Staff Nav
	$('a.previous-disabled').click( function() {
		return false;
	});
	$('a.next-disabled').click( function() {
		return false;
	});
	
	
	// Form Reset
	$('a.reset').click( function() {
		$('#contact-fields').each(function(){
				this.reset();
		});
		return false;
	});
	
	// Staff Carousel - Infinite
	$('#staff-bios').infiniteCarousel();
});