我需要能够在页面刷新时交换背景图像。我试图用javascript做这个,我正在引用我为页面正文设置的id。这是我到目前为止所提出的,似乎没有起作用:
<script type="text/javascript">
window.onload = choosePic;
function choosePic() {
var myPix = new Array("/CoVPrototype/images/Homepage/skyline_bkgd_blue_fixed.jpg", "/CoVPrototype/images/AboutPage/about_bkgd.jpg", "/CoVPrototype/images/GovernmentPage/gov_bkgd.jpg", "/CoVPrototype/images/newsPage/news_bkgd.jpg", "/CoVPrototype/images/parkPage/park_bkgd.jpg", "/CoVPrototype/images/propertyPage/property_bkgd.jpg", "/CoVPrototype/images/enviroPage/enviro_bkgd.jpg", "/CoVPrototype/images/transportPage/transport_bkgd.jpg", "/CoVPrototype/images/businessPage/business_bkgd.jpg");
var randomNum = Math.floor(Math.random() * myPix.length);
document.getElementById("home_style").src = myPix[randomNum];
}
我在HTML中引用的标记是这样设置的(请注意,所有其他HTML标记都已应用...为了简洁起见,此处未显示):
<body id="home_style">
</body>
最后,我的CSS看起来像这样:
body {
margin:0;
padding:0;
font-size:62.5%;
font-family:"Lucida Sans Unicode", "Lucida Grande", sans-serif;
}
body#home_style {
background:no-repeat bottom left fixed;
width:100%;
}
这应该有用吗?我究竟做错了什么?!我希望有人可以帮忙!!
答案 0 :(得分:0)
这应该有效:
document.getElementById("home_style").style.backgroundImage = "url(" + myPix[randomNum] + ")";