(function($) {
$.fn.easySlider=function(options){
var defaults={
prevId: 		'prevBtn',
prevText: 		'Previous',
nextId: 		'nextBtn',
nextText: 		'Next',
controlsShow:	true,
controlsBefore:	'',
controlsAfter:	'',
controlsFade:	true,
firstId: 		'firstBtn',
firstText: 		'First',
firstShow:		false,
lastId: 		'lastBtn',
lastText: 		'Last',
lastShow:		false,
vertical:		false,
speed:			500,
auto:			false,
pause:			6000,
continuous:		false, 
numeric: 		false,
numericId: 		'controls'}; 

var options=$.extend(defaults, options);  
this.each(function(){var obj=$(this); 
var s=$("li", obj).length;
var w=$("li", obj).width(); 
var h=$("li", obj).height(); 
var clickable=true;
obj.width(w);obj.height(h); 
obj.css("overflow","hidden");
var ts=s-1;var t=0;
$("ul", obj).css('width',s*w);

if(options.continuous){
$("ul", obj).prepend($("ul li:last-child", obj).clone().css("margin-left","-"+ w +"px"));
$("ul", obj).append($("ul li:nth-child(2)", obj).clone());
$("ul", obj).css('width',(s+1)*w);};

if(!options.vertical) $("li", obj).css('float','left');

if(options.controlsShow){var html=options.controlsBefore;
if(options.numeric){html += '<ol id="'+ options.numericId +'"></ol>';} 
else{if(options.firstShow) html += '<span id="'+ options.firstId +'"><a href=\"javascript:void(0);\">'+ options.firstText +'</a></span>';
	html+='<span id="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></span>';
	html+=' <span id="'+ options.nextId +'"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></span>';
	if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></span>';};
	html += options.controlsAfter;
	$(obj).after(html);};

if(options.numeric){
	for(var i=0;i<s;i++){$(document.createElement("li"))
	.attr('id',options.numericId + (i+1))
	.html('<a rel='+ i +' href=\"javascript:void(0);\">'+ (i+1) +'</a>')
	.appendTo($("#"+ options.numericId))
	.click(function(){animate($("a",$(this)).attr('rel'),true);});};} 
else {
	$("a","#"+options.nextId).click(function(){animate("next",true);});
	$("a","#"+options.prevId).click(function(){animate("prev",true);});
	$("a","#"+options.firstId).click(function(){animate("first",true);});
	$("a","#"+options.lastId).click(function(){animate("last",true);});};


function setCurrent(i){i=parseInt(i)+1;
$("li","#"+options.numericId).removeClass("current");
$("li#"+options.numericId+i).addClass("current");};

function adjust(){if(t>ts) t=0;if(t<0) t=ts;
if(!options.vertical){$("ul",obj).css("margin-left",(t*w*-1));} 
else {$("ul",obj).css("margin-left",(t*h*-1));}
clickable=true;if(options.numeric)setCurrent(t);};

function animate(dir,clicked){
if (clickable){clickable=false;var ot=t;
	switch(dir){
	case "next":t=(ot>=ts) ? (options.continuous ? t+1 : ts) : t+1;break;
	case "prev":t=(t<=0) ? (options.continuous ? t-1 : 0) : t-1;break; 
	case "first":t=0;break; 
	case "last":t=ts;break; 
	default:t=dir;break; };

var diff=Math.abs(ot-t);var speed=diff*options.speed;
if(!options.vertical){p=(t*w*-1);$("ul",obj).animate({marginLeft: p},{queue:false, duration:speed, complete:adjust});} 
else {p=(t*h*-1);$("ul",obj).animate({ marginTop: p }, {queue:false, duration:speed, complete:adjust });};
if(!options.continuous && options.controlsFade){
if(t==ts){$("a","#"+options.nextId).hide();$("a","#"+options.lastId).hide();} 
else {$("a","#"+options.nextId).show();$("a","#"+options.lastId).show();};
if(t==0){$("a","#"+options.prevId).hide();$("a","#"+options.firstId).hide();}
else {$("a","#"+options.prevId).show();$("a","#"+options.firstId).show();};};
if(clicked) clearTimeout(timeout);
if(options.auto && dir=="next" && !clicked){;timeout=setTimeout(function(){animate("next",false);},diff*options.speed+options.pause);};};};

// init
var timeout;
if(options.auto){;timeout=setTimeout(function(){animate("next",false);},options.pause);};
if(options.numeric) setCurrent(0);
if(!options.continuous && options.controlsFade){$("a","#"+options.prevId).hide();$("a","#"+options.firstId).hide();};});};})(jQuery);