jQuery.fn.topLink = function(settings) {
settings = jQuery.extend({
min: 1,
fadeSpeed: 200000,
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() {
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);
}
});
});
};
 
$(document).ready(function() {
$('#yukari').topLink({
min: 400,
fadeSpeed: 100
});
//smoothscroll
$('#yukari').click(function(e) {
e.preventDefault();
$.scrollTo(0,1000);
});
});