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Editorial Team
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Asked: 2026-05-13T13:08:48+00:00

(This question is related to this question ) I’ve a simple form: <html> <head>

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(This question is related to this question)

I’ve a simple form:

<html>
<head>
</head>
<body>
    <form name="aspnetForm" method="post" action="http://www.startupseeds.com/Default.aspx">
        <input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="..." />
        <input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWCALMyNWrBQKoz5H1CALlmOb9DgKmz6HzAwKf8bOXCQKC7qLKAwK5kNvVAQKk7amsA53tGBGr+Ji7LTI0eYkvquMZrF/g" />
        <input name="ctl00$Login1$tbEmail" type="text" />
        <input name="ctl00$Login1$tbPassword" type="password" />

        <input type="image" name="ctl00$Login1$ibLogin" />
    </form>
</body>
</html>

When I Change this:

<input type="image" name="ctl00$Login1$ibLogin" />

to this:

<input type="submit" name="ctl00$Login1$ibLogin" />

…it doesn’t work. The only difference in this code is type="submit" instead of type="image". I didn’t know even that there are differences between them (in the key/value in http) – How can I get "submit" to work?

Thank you.

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1 Answer

  1. Editorial Team

    The difference is that:

    <input type="image" name="ctl00$Login1$ibLogin" />

    will result in two form fields: ctl00$Login1$ibLogin.x and ctl00$Login1$ibLogin.y to indicate what part of the image was clicked, although you have no image in your markup.

    From 17.4.1 Control types created with INPUT of the HTML 4.01 Specification:

    image

    Creates a graphical submit
    button    . The value of the
    src attribute specifies the URI
    of the image that will decorate the
    button. For accessibility reasons,
    authors should provide alternate
    text     for the image via the
    alt attribute.

    When a pointing device is used to
    click on the image, the form is
    submitted and the click coordinates
    passed to the server. The x value is
    measured in pixels from the left
    of the image, and the y value in
    pixels from the top of the image. The
    submitted data includes name.x=x-value
    and name.y=y-value where “name” is the
    value of the name attribute, and
    x-value and y-value are the x and y
    coordinate values, respectively.

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