记得引用Jquery
js代码:
function gotoTPoint(obj, speed) { var objTop; var objId = '#' + obj; if (obj != 'top') { objTop = $(objId).offset().top - 70; } else { objTop = 0; } $('html,body').animate({ scrollTop: objTop }, speed); }
使用方法:
<a href="javascript:;" onclick="gotoTPoint('top',400)"> <img src="../images/kehu_goTop.png" alt="返回顶部" style="margin-top:1px;" /> </a>