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Editorial Team
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Asked: 2026-05-21T04:01:53+00:00

I need to be able to swap a background image on page refresh. I

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I need to be able to swap a background image on page refresh. I am attempting to do this with javascript and I’m referencing the id I have set for the body of the page. Here is what I have come up with so far and it doesn’t seem to be working:

<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];
    }

The tag I’m referencing in the HTML is set like this (please note, all other HTML tags have been applied… just not shown here for the sake of brevity):

<body id="home_style">
</body>

And finally, my CSS looks like this:

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%;
    }

Should this work? What am I doing wrong?! I hope someone can help!!

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1 Answer

  1. Editorial Team

    This should work:

    document.getElementById("home_style").style.backgroundImage = "url(" + myPix[randomNum] + ")";
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