html
<div class="outer bg8b3801" id="scroll_menu">
<div class="common"><img src="{dede:global.cfg_templets_skin/}/images/zxzx.png" alt="中国松和日七整骨整形研究院"></div>
</div>
// js
function getScrollTOP()
{
var t;
if(document.documentElement && document.documentElement.scrollTop){
t = document.documentElement.scrollTop;}
else if(document.body){
t = document.body.scrollTop;
}
return t;
}
function sc5() {
var t = getScrollTOP();
if(t>=800)
{
$('#scroll_menu').css('position','fixed');
$('#scroll_menu').css('top','0');
}
else {
$('#scroll_menu').css('position','static');
$('#scroll_menu').css('top','auto');
}
}
window.onscroll = function () {
sc5();
}也可以用 $(window).scroll(function(){
sc5();
}); 来代替
function getscrollLeft()
{
if (document.documentElement && document.documentElement.scrollLeft) {
return document.documentElement.scrollLeft;
}
else if (document.body)
{
return document.body.scrollLeft;
}
}