Smooth scroll to anchor link (Internal & external pages)

smoothscroll-alink.js

jQuery(document).ready(function(){
jQuery('a[href*=#]:not([href=#])').click(function() {
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'')
|| location.hostname == this.hostname) {
var target = jQuery(this.hash);
target = target.length ? target : jQuery('[name=' + this.hash.slice(1) +']');
if (target.length) {
jQuery('html, body').animate({
scrollTop: target.offset().top - 90 }, 1000);
return false;
}
}
});
});
jQuery(window).load(function(){
function goToByScroll(id){
jQuery("html, body").animate({scrollTop: jQuery("#"+id).offset().top - 90 }, 1000);
}
if(window.location.hash != '') {
goToByScroll(window.location.hash.substr(1));
}
});