//plugin
jQuery.fn.topLink = function(settings) {
	settings = jQuery.extend({
		min: 1,
		fadeSpeed: 200
	}, settings);
	return this.each(function() {
		//listen for scroll
		var el = $(this);
		el.hide(); //in case the user forgot
		$(window).scroll(function() {
			if($(window).scrollTop() >= settings.min)
			{
				el.fadeIn(settings.fadeSpeed);
			}
			else
			{
				el.fadeOut(settings.fadeSpeed);
			}
		});
	});
};

//usage w/ smoothscroll
$(document).ready(function() {
	//set the link
	$('#top-link').topLink({
		min: 400,
		fadeSpeed: 500
	});
	//smoothscroll
	$('#top-link').click(function(e) {
		e.preventDefault();
		$.scrollTo(0,300);
	});
});

jQuery.fn.topLink = function(settings) {
    settings = jQuery.extend({
      min: 1,
      fadeSpeed: 200,
      ieOffset: 50
    }, settings);
    return this.each(function() {
      //listen for scroll
      var el = $(this);
      el.css('display','none'); //in case the user forgot
      $(window).scroll(function() {
        //stupid IE hack
        if(!jQuery.support.hrefNormalized) {
          el.css({
            'position': 'absolute',
            'top': $(window).scrollTop() + $(window).height() - settings.ieOffset
          });
        }
        if($(window).scrollTop() >= settings.min)
        {
          el.fadeIn(settings.fadeSpeed);
        }
        else
        {
          el.fadeOut(settings.fadeSpeed);
        }
      });
    });
  };