(function($) {$.fn.easySlider = function(options){
  
// default configuration properties
var defaults = {
prevId: 'prevBtn',
prevText: 'Previous',
nextId: 'nextBtn',
nextText: 'Next',
orientation:'', //  'vertical' is optional;
speed: 800
}; 

var options = $.extend(defaults, options);  

return this.each(function() {  
obj = $(this); 
var s = $("li", obj).length;
var w = obj.width(); 
var h = obj.height(); 
var ts = s-1;
var t = 0;
var vertical = (options.orientation == 'vertical');
$("ul", obj).css('width',s*w);
if(!vertical) $("li", obj).css('float','left');
$(obj).after('<span id="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></span> <span id="'+ options.nextId +'"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></span>');
$("a","#"+options.prevId).hide();
$("a","#"+options.nextId).hide();
$("a","#"+options.nextId).click(function(){
animate("next");
if (t>=ts) $(this).fadeOut();
$("a","#"+options.prevId).fadeIn();
});
$("a","#"+options.prevId).click(function(){
animate("prev");
if (t<=0) $(this).fadeOut();
$("a","#"+options.nextId).fadeIn();
});
function animate(dir){
if(dir == "next"){
t = (t>=ts) ? ts : t+1;
} else {
t = (t<=0) ? 0 : t-1;
};
if(!vertical) {
p = (t*w*-1);
$("ul",obj).animate(
{ marginLeft: p }, 
options.speed
);
} else {
p = (t*h*-1);
$("ul",obj).animate(
{ marginTop: p }, 
options.speed
);
}
};
if(s>1) $("a","#"+options.nextId).fadeIn();
});
  
};})(jQuery);