Js代碼
//網頁滾動事件,觸發是指定元素的位置改變
Js代碼
<script type="text/javascript">
window.onscroll = function() {
scrollItem();
}
function scrollItem(){
//alert(document.body.scrollTop);
if(navigator.userAgent.indexOf("Chrome")>0){
document.getElementById("notice_jqm").style.top=document.body.scrollTop+(document.documentElement.clientHeight-document.getElementById("notice_jqm").offsetHeight)/2+"px";
//alert(document.getElementById("winpop").style.top);document.getElementById("winpop").style.left=document.body.scrollLeft+(document.documentElement.clientWidth-document.getElementById("winpop").offsetWidth)/2+"px";
}
else{
document.getElementById("notice_jqm").style.top=document.documentElement.scrollTop+(document.documentElement.clientHeight-document.getElementById("notice_jqm").offsetHeight)/2+"px";
//alert(document.getElementById("winpop").style.top);document.getElementById("winpop").style.left=document.documentElement.scrollLeft+(document.documentElement.clientWidth-document.getElementById("winpop").offsetWidth)/2+"px";
}
}
</script>
作者“wolf blog”