Question

I have some HTML shown below, which is generated dynamically in an ASP Classic form.

There can be any amount of groups/tables (Size/Color) with any amount of rows/options.

Each group/table has an img tag, and each row/option has a hidden field with its corresponding image URL.

On the hover of each row, I need to change the src attribute of the image of that group to that row’s image URL, using JS or jQuery (something that works in ASP classic).

The HTML can be changed if needed for it to work.

Thank you.

    <table>
    <tr>
        <td style="font-weight: 700" colspan="2">
            Color<input id="colorSortOrder" type="hidden" value="1" />
        </td>
    </tr>
    <tr>
        <td>
            <input id="radioRed" type="radio" name="Color" value="R-" />
            <label for="radioRed">
                Red</label>
            <input type="hidden" value="Image1.jpg" />
        </td>
        <td rowspan="3">
            <img />
        </td>
    </tr>
    <tr>
        <td>
            <input id="radioOrange" type="radio" name="Color" value="O-" />
            <label for="radioOrange">
                Orange</label>
            <input type="hidden" value="Image2.jpg" />
        </td>
    </tr>
    <tr>
        <td>
            <input id="radioBlue" type="radio" name="Color" value="B-" />
            <label for="radioBlue">
                Blue</label>
            <input type="hidden" value="Image3.jpg" />
        </td>
    </tr>
</table>
<table>
    <tr>
        <td style="font-weight: 700" colspan="2">
            Size<input id="sizeSortOrder" type="hidden" value="2" />
        </td>
    </tr>
    <tr>
        <td>
            <input id="radioLarge" type="radio" name="Color" value="LA-" />
            <label for="radioLarge">
                Large</label>
            <input type="hidden" value="Image4.jpg" />
        </td>
        <td rowspan="3">
            <img />
        </td>
    </tr>
    <tr>
        <td>
            <input id="radioMedium" type="radio" name="Color" value="ME-" />
            <label for="radioMedium">
                Medium</label>
            <input type="hidden" value="Image5.jpg" />
        </td>
    </tr>
    <tr>
        <td>
            <input id="radioSmall" type="radio" name="Color" value="SM-" />
            <label for="radioSmall">
                Small</label>
            <input type="hidden" value="Image6.jpg" />
        </td>
    </tr>
</table>

…which looks something like:

Answer 1

I would change the HTML just a little bit to reduce the JavaScript parsing needed by adding data attributes for the image src like this

http://jsfiddle.net/muDJ9/

and with the use of JavaScript replace you can edit out extensions for the alt tags

EDIT: This also runs the fastest I just ran tests on the others submitted using the console.time() profiler

FINAL: http://jsfiddle.net/FV9cw/