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/*
 Kwicks for jQuery (version 1.5.1)
 Copyright (c) 2008 Jeremy Martin
 http://www.jeremymartin.name/projects.php?project=kwicks
 
 Licensed under the MIT license:
  http://www.opensource.org/licenses/mit-license.php

 Any and all use of this script must be accompanied by this copyright/license notice in its present form.
*/
(function($){
	$.fn.kwicks=function(n){
		var p={
			isVertical:false, //false para horizontal
			sticky:false, //se for true, a foto fica até o mouse passar em outra
			defaultKwick:0,
			event:'mouseover',
			spacing:0, //espaço inicial entre uma foto e outra
			duration:500
		};
		
		var count=$(".kwicks li").size();
		
		var o=$.extend(p,n);
		
		if(o.isVertical){
			 $(".kwicks li").css('height', Math.ceil(($("#anima").css("height").replace(/px/,'')/count)) + 'px');
		} else {
			$(".kwicks li").css('width', Math.ceil(($("#anima").css("width").replace(/px/,'')/count)) + 'px');
		}
		
		var q=(o.isVertical?'height':'width'); //q = width
		var r=(o.isVertical?'top':'left'); //r = left
		return this.each(function(){
			container=$(this);
			var k=container.children('li');
			var l=k.eq(0).css(q).replace(/px/,''); //l = width dos li
			if(!o.max){
				o.max=(l*k.size())-(o.min*(k.size()-1)) //max = alguma coisa
			} else {																	//senão min = alguma coisa
				o.min=((l*k.size())-o.max)/(k.size()-1) 
			}
			if(o.isVertical){
				container.css({
					width:k.eq(0).css('width'),
					height:(l*k.size())+(o.spacing*(k.size()-1))+'px'
				})
			} else {
				container.css({
					width:(l*k.size())+(o.spacing*(k.size()-1))+'px', //width = alguma coisa
					height:k.eq(0).css('height') //algura continua a mesma
				})
			}
			var m=[];
			for(i=0;i<k.size();i++){
				m[i]=[];
				for(j=1;j<k.size()-1;j++){
					if(i==j){
						m[i][j]=o.isVertical ? j*o.min+(j*o.spacing) : j*o.min+(j*o.spacing)
					} else {
						m[i][j]=(j<=i ? (j*o.min) : (j-1)*o.min+o.max)+(j*o.spacing)
					}
				} //não entendi nada do trem acima
			}
			k.each(function(i){
				var h=$(this);
				if(i===0){
					h.css(r,'0px') //coloca left 0
				} else if(i==k.size()-1){
					h.css(o.isVertical ? 'bottom':'right','0px') //coloca right 0
				} else {
					if(o.sticky){
						h.css(r,m[o.defaultKwick][i]) //coloca left o que tiver na matriz posição 0 1
					} else {
						h.css(r , (i*l)+(i*o.spacing)) //coloca left i * o width
					}
				}
				if(o.sticky){
					if(o.defaultKwick==i){
						h.css(q, o.max+'px'); //coloca width o o.max
						h.addClass('active')
					} else {
						h.css(q, o.min+'px') //coloca width o o.min
					}
				}
				h.css({
					margin:0,
					position:'absolute'
				});
				h.bind(o.event,function(){
					var c=[];
					var d=[];
					k.stop().removeClass('active');
					for(j=0;j<k.size();j++){
						c[j]=k.eq(j).css(q).replace(/px/,'');
						d[j]=k.eq(j).css(r).replace(/px/,'')
					}
					var e={};
					e[q]=o.max;
					var f=o.max-c[i];
					var g=c[i] / f;
					h.addClass('active').animate(e,{
						step:function(a){
							var b=f!=0?a/f-g:1;
							k.each(function(j){
								if(j!=i){
									k.eq(j).css(q,c[j]-((c[j]-o.min)*b)+'px')
								}
								if(j>0&&j<k.size()-1){
									k.eq(j).css(r,d[j]-((d[j]-m[i][j])*b)+'px')
								}
							}
						)}, duration:o.duration, easing:o.easing
					})
				})
			});
			if(!o.sticky){
				container.bind("mouseleave",function(){
					var c=[];
					var d=[];
					k.removeClass('active').stop();
					for(i=0;i<k.size();i++){
						c[i]=k.eq(i).css(q).replace(/px/,'');
						d[i]=k.eq(i).css(r).replace(/px/,'')
					}
					var e={};
					e[q]=l;
					var f=l-c[0];
					k.eq(0).animate(e,{
						step:function(a){
							var b=f!=0?(a-c[0])/f:1;
							for(i=1;i<k.size();i++){
								k.eq(i).css(q,c[i]-((c[i]-l)*b)+'px');
								if(i<k.size()-1){
									k.eq(i).css(r,d[i]-((d[i]-((i*l)+(i*o.spacing)))*b)+'px')
								}
							}
						}, duration:o.duration, easing:o.easing
					})
				})
			}
		})
	}
})(jQuery);
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