Wordpressでローディング画面を実装するプラグイン

<!-- 読み込みスピナー -->

<script type="text/javascript">
$("#showspin").on("click", function(){
$("somediv .spinner").show();
});
</script>

<style media="screen">
.spinner {
background: url('/wp-admin/images/wpspin_light.gif') no-repeat;
background-size: 16px 16px;
display: none;
float: right;
opacity: .7;
filter: alpha(opacity=70);
width: 16px;
height: 16px;
margin: 5px 5px 0;
}
</style>

<div class="spinner"></div>

<!-- 読み込みスピナー -->

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/modernizr/2.8.2/modernizr.js"></script>
<script type="text/javascript">

//paste this code under the head tag or in a separate js file.
    // Wait for window load
    $(window).load(function() {
        // Animate loader off screen
        $(".se-pre-con").fadeOut("slow");;
    });
</script>

<style media="screen">
/* Paste this css to your style sheet file or under head tag */
/* This only works with JavaScript,
if it's not present, don't show loader */
.no-js #loader { display: none;  }
.js #loader { display: block; position: absolute; left: 100px; top: 0; }
.se-pre-con {
    position: fixed;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background: url(images/loader-64x/Preloader_2.gif) center no-repeat #fff;
}
</style>

<div class="se-pre-con"></div>