代码很简单,这里就不多废话了,小伙伴们看代码吧。
HTML:
<!--Go to Top-->
<div id=\"Fixed\">
<a id=\"goTop\" class=\"fl\" title=\"去顶部\" href=\"javascript:;\">去顶部</a>
</div>
<!--Go to Top end-->
CSS:
.fl{
display:block;
float:left;
width:50px;
height:50px;
text-align:center;
background-color:#eaeaea;
background-image:url(../images/toTop.png);
}
.fl:hover{background-color:#f48942;background-image:url(../images/toTop.png);}
#Fixed {
position: fixed;
_position: absolute;
z-index: 100;
bottom: 70px;
left: 50%;
margin-left: 530px;
_bottom: auto;_top:
expression(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-70);
width: 50px;
text-indent: -40000px;
background: #fff
}
/*置顶 end*/
Js:
/*置顶功能*/
$(function(){
$(window).bind(\'scroll\', {
fixedOffsetBottom: parseInt($(\'#Fixed\').css(\'bottom\'))
},
function(e) {
var scrollTop = $(window).scrollTop();
var referFooter =$(\'#footer\');
scrollTop > 100 ? $(\'#goTop\').show() : $(\'#goTop\').hide();
if (!/msie 6/i.test(navigator.userAgent)) {
if ($(window).height() - (referFooter.offset().top - $(window).scrollTop()) > e.data.fixedOffsetBottom) {
$(\'#Fixed\').css(\'bottom\', $(window).height() - (referFooter.offset().top - $(window).scrollTop()))
} else {
$(\'#Fixed\').css(\'bottom\', e.data.fixedOffsetBottom)
}
}
});
$(\'#goTop\').click(function() {
$(\'body,html\').stop().animate({
\'scrollTop\': 0,
\'duration\': 100,
\'easing\': \'ease-in\'
})
});
});
/*置顶功能 end*/
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