// t: current time, b: begInnIng value, c: change In value, d: duration

jQuery.extend( jQuery.easing,
{
	easeInQuad: function (x, t, b, c, d) {
		return c*(t/=d)*t + b;
	},
	easeOutQuad: function (x, t, b, c, d) {
		return -c *(t/=d)*(t-2) + b;
	},
	easeInOutQuad: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t + b;
		return -c/2 * ((--t)*(t-2) - 1) + b;
	},
	easeInCubic: function (x, t, b, c, d) {
		return c*(t/=d)*t*t + b;
	},
	easeOutCubic: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t + 1) + b;
	},
	easeInOutCubic: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t + b;
		return c/2*((t-=2)*t*t + 2) + b;
	},
	easeInQuart: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t + b;
	},
	easeOutQuart: function (x, t, b, c, d) {
		return -c * ((t=t/d-1)*t*t*t - 1) + b;
	},
	easeInOutQuart: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
		return -c/2 * ((t-=2)*t*t*t - 2) + b;
	},
	easeInQuint: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t*t + b;
	},
	easeOutQuint: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t*t*t + 1) + b;
	},
	easeInOutQuint: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
		return c/2*((t-=2)*t*t*t*t + 2) + b;
	},
	easeInSine: function (x, t, b, c, d) {
		return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
	},
	easeOutSine: function (x, t, b, c, d) {
		return c * Math.sin(t/d * (Math.PI/2)) + b;
	},
	easeInOutSine: function (x, t, b, c, d) {
		return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
	},
	easeInExpo: function (x, t, b, c, d) {
		return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
	},
	easeOutExpo: function (x, t, b, c, d) {
		return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
	},
	easeInOutExpo: function (x, t, b, c, d) {
		if (t==0) return b;
		if (t==d) return b+c;
		if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
		return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
	},
	easeInCirc: function (x, t, b, c, d) {
		return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
	},
	easeOutCirc: function (x, t, b, c, d) {
		return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
	},
	easeInOutCirc: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
		return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
	},
	easeInElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
	},
	easeOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
	},
	easeInOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d/2)==2) return b+c;  if (!p) p=d*(.3*1.5);
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
		return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
	},
	easeInBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*(t/=d)*t*((s+1)*t - s) + b;
	},
	easeOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
	},
	easeInOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158; 
		if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
		return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
	},
	easeInBounce: function (x, t, b, c, d) {
		return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
	},
	easeOutBounce: function (x, t, b, c, d) {
		if ((t/=d) < (1/2.75)) {
			return c*(7.5625*t*t) + b;
		} else if (t < (2/2.75)) {
			return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
		} else if (t < (2.5/2.75)) {
			return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
		} else {
			return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
		}
	},
	easeInOutBounce: function (x, t, b, c, d) {
		if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
		return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
	}
});
$.fn.extend({flyout : function(options) {
	
		var shown=false;
		var animating=false;
		var $holder;
		var $thumb;
		var tloc;
		var th;
		var tw;
		var bigimg = new Image();
		var subType = 'img';
		var offset;
		
		this.click(function() {
			if (animating == true) { return false; }
	
			if (shown) { putAway(this); }
			else { flyOut(this); }
	
			return false;
		});
		
		var o = jQuery.extend({
			outSpeed : 1000,
			inSpeed : 500,
			outEase : 'swing',
			inEase : 'swing',
			loadingSrc: null,
			loader: 'loader',
			loaderZIndex: 3500,
			widthMargin: 40,
			heightMargin: 40,
			loadingText : "Loading...",
			closeTip : " - Click here to close",
			destPadding: 20,
			startOffsetX: 0,
			startOffsetY: 0,
			startHeight: 0,
			startWidth: 0,
			flyOutStart: function() {},
			flyOutFinish: function() {},
			putAwayStart: function() {},
			putAwayFinish: function() {},
			shownClass: 'shown'
		}, options);
	
		function flyOut(it) {
			animating = true;
			
			$holder = $(it);
			$thumb = $('img',it);
			bigimg = new Image();
			$(bigimg).addClass('bigImg');
			sL = $(window).scrollLeft();
			sT = $(window).scrollTop();
			tloc = $thumb.offset();
			tloc.left += o.startOffsetX;
			tloc.top += o.startOffsetY;
			th = (o.startHeight > 0 ? o.startHeight : $thumb.height());
			tw = (o.startWidth > 0 ? o.startWidth : $thumb.width());
			
			$('<div class="zoomout"></div>').attr('id',o.loader)
							.appendTo('body')
							.css({
								'padding' : '5px',
								'background-color': '#f4f3ed',
								'border' : '1px solid #c2bfb1',
								'position':'absolute',
								'top':tloc.top,
								'left':tloc.left,
								'height':th,
								'width':tw,
								'opacity':.5,
								'display':'block',
								'z-index':o.loaderZIndex});

			if (o.loadingSrc) {
				$('#'+o.loader).append($('<img/>')
								.load(function() {
										$(this)
											.css({'position':'relative',
												 'top':th/2-(this.height/2),
												 'left':tw/2-(this.width/2)})
											.attr('alt',o.loadingText);
										})
									.attr('src',o.loadingSrc)
								);
			}
			else {
				$('#'+o.loader).css('background-color','#f4f3ed')
								.append($('<span></span>')
										  	.text(o.loadingText)
											.css({'position':'relative',
												 'top':'2px',
												 'left':'2px',
												 'color':'#000',
												 'font-size':'9px'})
									 	);
			}
			$(bigimg).load(function() {
				imgtag = $('<img/>').attr('src',$holder.attr('href')).attr('title',$thumb.attr('title')+o.closeTip).attr('alt',$thumb.attr('alt')+o.closeTip).height(th).width(tw);

				o.flyOutStart.call(it);

				if (o.destElement) {
					var $dest = $(o.destElement);
					max_x = $dest.innerWidth() - (o.destPadding*2);
					max_y = $dest.innerHeight() - (o.destPadding*2);
				}
				else {
					max_x = $(window).width()-o.widthMargin;
					if ($.browser.opera) 
						wh = document.getElementsByTagName('html')[0].clientHeight;
					else 
						wh = $(window).height();
					max_y = wh-o.heightMargin;
				}

				width = bigimg.width;
				height = bigimg.height;
	
				x_dim = max_x / width;
				y_dim = max_y / height;
	
				if (x_dim <=y_dim) {
					y_dim = x_dim;
				} else {
					x_dim = y_dim;
				}
				
				dw = Math.round(width  * x_dim);
				dh = Math.round(height * y_dim);
				if (dw>width) {dw = width}
				if (dh>height) {dh = height}
				
				if (o.destElement) {
					dPos = $dest.offset();
					dl = Math.round(($dest.outerWidth()/2)-(dw/2)+dPos.left);
					dt = Math.round(($dest.outerHeight()/2)-(dh/2)+dPos.top);
				}
				else {
					dl = Math.round(($(window).width()/2)-(dw/2)+sL);
					if ($.browser.opera) 
						wh = document.getElementsByTagName('html')[0].clientHeight;
					else 
						wh = $(window).height();
					dt = Math.round((wh/2)-(dh/2)+sT);
				}
				
				$('#'+o.loader).empty().css('opacity',1).append(imgtag).width('auto').height('auto').animate({top:dt, left:dl},{duration:o.outSpeed, queue:false, easing:o.outEase});
				$('#'+o.loader+' '+subType).animate({height:dh, width:dw}, o.outSpeed, o.outEase,
				function() {
					o.flyOutFinish.call(it);
					shown = it;
					$holder.addClass(o.shownClass);
					animating=false;
					$('#'+o.loader+' '+subType).click(function(){putAway(null)})
				});
			});
			bigimg.src = $holder.attr('href');
		}
	
	
		function putAway(next) {
			// for future development:
			if (animating == true || shown == false) {return false;}
			o.putAwayStart.call(shown);
			
			animating = true;
			
			// check $thumb loc again, in case it moved...
			tloc = $thumb.offset();
			tloc.left += o.startOffsetX;
			tloc.top += o.startOffsetY;

			$('#'+o.loader).animate({top:tloc.top, left:tloc.left},{duration:o.inSpeed, queue:false, easing:o.inEase});
			$('#'+o.loader+' '+subType).animate({height:th, width:tw}, 
				o.inSpeed, o.inEase, 
				function() {
					$('#'+o.loader).css('display','none').remove(); 
					o.putAwayFinish.call(shown);
					animating=false;
					bigimg=null;			
					if (next && next != shown) {
						shown = false;
						flyOut(next);
					}
					shown = false;
					$holder.removeClass(o.shownClass);
				});
		}
		
		return this;	// never break the chain
		
	}
});