jquery实现网页的页面平滑滚动效果代码_jquery

(function($){
 $.extend($.fn,{
 scrollTo:function(time,to){
 time=time||800;
 to=to||1;
 $('a[href*=#]', this).click(function(){
 if (location.pathname.replace(/^\//, '') == this.pathname.replace(/^\//, '') && 
location.hostname == this.hostname) {
 var $target = $(this.hash);
 $target = $target.length && $target || $('[name=' + this.hash.slice(1) + ']');
 if ($target.length) {
 if (to == 1) {
 $('html,body').animate({
 scrollTop: $target.offset().top
 }, time);
 }
 else if(to==2){
 $('html,body').animate({
 scrollLeft: $target.offset().left
 }, time);
 }else{
alert('argument error');
 }
 return false;
 }
 }
 });
 }
 });
})(jQuery);