Highlight tr elements on hover (HTML & jQuery)

by Marventus

HTML

<table class="tb" style="width: 100%;" border="1" cellpadding="10" cellspacing="10">
    <thead>
        <th>Package</th>
        <th>Includes</th>
        <th>Number of recruits</th>
        <th>Cost per recruit + VAT</th>
    </thead>
    <tbody>
        <tr class="row-1">
            <td rowspan="4">Lorem ipsum dolor sit amet</td>
            <td rowspan="4">Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem. Nulla consequat massa quis enim. Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut, imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede mollis pretium. Integer tincidunt. Cras dapibus. Vivamus elementum semper nisi.</td>
            <td>20+</td>
            <td>£105</td>
        </tr>
        <tr class="row-1">
            <td>10–19</td>
            <td>£120</td>
        </tr>
        <tr class="row-1">
            <td>6–9</td>
            <td>£135</td>
        </tr>
        <tr class="row-1">
            <td>1–5</td>
            <td>£150</td>
        </tr>
        <tr class="row-2">
            <td rowspan="4">Lorem ipsum dolor sit amet</td>
            <td rowspan="4">Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem. Nulla consequat massa quis enim. Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut, imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede mollis pretium. Integer tincidunt. Cras dapibus. Vivamus elementum semper nisi.</td>
            <td>20+</td>
            <td>£175</td>
        </tr>
        <tr class="row-2">
            <td>10–19</td>
            <td>£200</td>
        </tr>
        <tr class="row-2">
            <td>6–9</td>
  ...

CSS

body {
    padding: 50px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
td, th {
    padding: 20px;
    border: 1px solid black;
}
.hover {
    background-color: blue;
}

JavaScript

jQuery(function ($) {
    var tableRowClasses = function (sel) {
        sel = $(sel);
        $.each(sel, function (i, v) {
            // Bind hover event handler
            $(v).hover(function () {
                var ta = "." + $(v).attr("class");
                $(".hover").removeClass("hover");
                $(ta).addClass("hover");
            });
        });
    };
    $(document).ready(function () {
        tableRowClasses(".tb tr");
    });
});