如何在没有页面返回的情况下使用
Javascript刷新页面
顶端.
顶端.
我的页面使用计时器刷新,但问题是它每次重新加载时都会返回到顶层.它应该能够在重新加载时保留页面的当前位置.
附：
如有必要,欢迎额外的鼠标活动成为您建议的一部分.
我实际上是想在刷新时定位#idname,但我的HTML元素没有ID,只有类.
解决方法
如果您使用
JavaScript,此代码将起到作用.
var cookieName = "page_scroll";
var expdays = 365;
// An adaptation of Dorcht's cookie functions.
function setCookie(name,value,expires,path,domain,secure) {
if (!expires) expires = new Date();
document.cookie = name + "=" + escape(value) +
((expires == null) ? "" : "; expires=" + expires.toGMTString()) +
((path == null) ? "" : "; path=" + path) +
((domain == null) ? "" : "; domain=" + domain) +
((secure == null) ? "" : "; secure");
}
function getCookie(name) {
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen) {
var j = i + alen;
if (document.cookie.substring(i,j) == arg) {
return getCookieVal(j);
}
i = document.cookie.indexOf(" ",i) + 1;
if (i == 0) break;
}
return null;
}
function getCookieVal(offset) {
var endstr = document.cookie.indexOf(";",offset);
if (endstr == -1) endstr = document.cookie.length;
return unescape(document.cookie.substring(offset,endstr));
}
function deleteCookie(name,domain) {
document.cookie = name + "=" +
((path == null) ? "" : "; path=" + path) +
((domain == null) ? "" : "; domain=" + domain) +
"; expires=Thu,01-Jan-00 00:00:01 GMT";
}
function saveScroll() {
var expdate = new Date();
expdate.setTime(expdate.getTime() + (expdays*24*60*60*1000)); // expiry date
var x = document.pageXOffset || document.body.scrollLeft;
var y = document.pageYOffset || document.body.scrollTop;
var data = x + "_" + y;
setCookie(cookieName,data,expdate);
}
function loadScroll() {
var inf = getCookie(cookieName);
if (!inf) { return; }
var ar = inf.split("_");
if (ar.length == 2) {
window.scrollTo(parseInt(ar[0]),parseInt(ar[1]));
}
}
这通过使用cookie来记住滚动位置.
现在只需添加
onload="loadScroll()" onunload="saveScroll()"
你的身体标签,一切都会很好.
来源：http://www.huntingground.freeserve.co.uk/main/mainfram.htm?../scripts/cookies/scrollpos.htm
