(function($) {
$.fn.slider = function(options) {
		
var defaults = {			
    container: '.container',
    slides: '.slides',
    pagination: '.pagination',
    containerClick: true,
    autoStart: 0,
    slidespeed: 500,
    fadespeed: 500,
    autoHeight: false
};
		
this.each(function() {
		
var obj = $(this);
var o = $.extend(defaults, options);
var pagination = $(o.pagination+' li a',obj);
var m = 0;
var t = 1;
var s = $(o.slides,obj).children().size();
var w = $(o.slides,obj).children().outerWidth();
var p = 0;
var u = false;
var n = 0;
		
$(o.slides,obj).css({width:(s*w)});
		
$(o.slides,obj).children().each(function(){
  $(this).css({position:'absolute',left:p,display:'block'});
  p=p+w;
});
		
$(pagination,obj).each(function(){
  n=n+1;
  $(this).attr('rel',n);
  $(pagination.eq(0),obj).parent().addClass('active');
});
		
$(o.slides,obj).children(':eq('+(s-1)+')').css({position:'absolute',left:-w});
		
if(o.autoHeight){autoHeight(t);}
		
$('.next',obj).click(function(){
  if(u===false) {
    animate('next',true);
    if(o.autoStart){clearInterval(sliderIntervalID);}
  } return false;
});
		
$('.previous',obj).click(function(){
  if(u===false) {	
  animate('prev',true);
    if(o.autoStart){clearInterval(sliderIntervalID);}
  } return false;
});
		
if (o.containerClick) {
  $(o.container ,obj).click(function(){
  if(u===false) {
    animate('next',true);
      if(o.autoStart){clearInterval(sliderIntervalID);}
  } return false;
});
}
		
$(pagination,obj).click(function(){
if ($(this).parent().hasClass('active')) {return false;}
else {
  t = $(this).attr('rel');
  $(pagination,obj).parent().siblings().removeClass('active');
  $(this).parent().addClass('active');
  animate('fade',t);
  if(o.autoStart){clearInterval(sliderIntervalID);}
} return false;
});
		
if (o.autoStart) {
  sliderIntervalID = setInterval(function(){
    if(u===false) {animate('next',true);}
  }, o.autoStart);
}
		
function current(t) {
  if(t===s+1){t=1;}
  if(t===0){t=s;}
    $(pagination,obj).parent().siblings().removeClass('active');
    $(pagination+'[rel="' + (t) + '"]',obj).parent().addClass('active');
};
		
function autoHeight(t) {
  if(t===s+1){t=1;}
  if(t===0){t=s;}	
    var getHeight = $(o.slides,obj).children(':eq('+(t-1)+')',obj).outerHeight();
    $(o.container,obj).animate({height: getHeight},o.autoHeight);					
};		
		
function animate(dir,clicked){	
u = true;	
switch(dir){
case 'next':
  t = t+1;
  m = (-(t*w-w));
  current(t);
  if(o.autoHeight){autoHeight(t);}
    $(o.slides,obj).animate({left: m}, o.slidespeed,function(){
    if (t===s+1) {
      t = 1;
      $(o.slides,obj).css({left:0},function(){$(o.slides,obj).animate({left:m})});							
      $(o.slides,obj).children(':eq(0)').css({left: 0});
      $(o.slides,obj).children(':eq('+(s-1)+')').css({ position:'absolute',left:-w});				
    }
    if (t===s) $(o.slides,obj).children(':eq(0)').css({left:(s*w)});
    if (t===s-1) $(o.slides,obj).children(':eq('+(s-1)+')').css({left:s*w-w});
     u = false;
  });					
  break; 
case 'prev':
  t = t-1;
  m = (-(t*w-w));
  current(t);
  if(o.autoHeight){autoHeight(t);}
    $(o.slides,obj).animate({left: m}, o.slidespeed,function(){
    if (t===0) {
      t = s;
      $(o.slides,obj).children(':eq('+(s-1)+')').css({position:'absolute',left:(s*w-w)});
      $(o.slides,obj).css({left: -(s*w-w)});
      $(o.slides,obj).children(':eq(0)').css({left:(s*w)});
    }
    if (t===2 ) $(o.slides,obj).children(':eq(0)').css({position:'absolute',left:0});
    if (t===1) $(o.slides,obj).children(':eq('+ (s-1) +')').css({position:'absolute',left:-w});
      u = false;
  });
  break;
case 'fade':
  t = [t]*1;
  m = (-(t*w-w));
  current(t);
  if(o.autoHeight){autoHeight(t);}
    $(o.slides,obj).animate({left: m}, o.slidespeed,function(){
    if (t===0) {
      t = s;
      $(o.slides,obj).children(':eq('+(s-1)+')').css({position:'absolute',left:(s*w-w)});
      $(o.slides,obj).css({left: -(s*w-w)});
      $(o.slides,obj).children(':eq(0)').css({left:(s*w)});
    }
    if (t===2 ) $(o.slides,obj).children(':eq(0)').css({position:'absolute',left:0});
    if (t===1) $(o.slides,obj).children(':eq('+ (s-1) +')').css({position:'absolute',left:-w});
      u = false;
  });
  break;
default:
break;
}					
};
});
};
})(jQuery);