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  1. #1
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    Arrow [SOLVED] Enable link/button when user scrolls to bottom of page (or element)

    I've been handed an html document that contains a centered, scrollable <iframe> element with a static height and width. This iframe element displays a simple html document that houses the 'terms of service' text.

    Their goal is to have it to where the <a href> link at the bottom that is shown to the user as 'next' is disabled until the user scrolls to the bottom of the terms of agreement box.

    The clickable link could be a button, image or text (no preference).

    They have to have it this way for legal reasons and radio buttons or checkboxes will not suffice unfortunately.


    What is the best way to go about doing this that seems to be cross-browser friendly (especially IE7).

    I offer $10 via paypal for well commented method/script.
    Last edited by patrickalexson; 01-06-2012 at 06:20 PM. Reason: Question was answered - marking resolved

  2. #2
    Supreme Master coder! Philip M's Avatar
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    London, England
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    Have a look at:- http://www.tek-tips.com/viewthread.cfm?qid=1065669

    The simplest way is to position Accept/Decline radio buttons at the end of the legal stuff. Why will that not suffice for you?

    All advice is supplied packaged by intellectual weight, and not by volume. Contents may settle slightly in transit.

    All the code given in this post has been tested and is intended to address the question asked.
    Unless stated otherwise it is not just a demonstration.

  3. #3
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    It suffices for me, but not for them. I had offered that solution as well as one that says 'by clicking next, you agree to the above terms'. I believe they ran into legal issues the last time they used radio/checkbox buttons and made a blanket rule against using those methods.

    I cannot get them to budge on this sadly.

    I could amend the template to make everything fit onto a page without the need for a scrollable element but it does not look that great.

  4. #4
    Senior Coder xelawho's Avatar
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    Nov 2010
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    if I forgo the 10 bucks can I skip the commenting bit?

    <style type="text/css">
    #div1 {word-wrap:break-word;
    <script language="javascript">
    function checkScrollPosition(elem) {
    if(elem.scrollHeight<(elem.scrollTop+elem.offsetHeight)) {
    document.getElementById('b2').disabled= false;
    <p>Please Read</p><br />
    <div id="div1" onscroll="checkScrollPosition(this)"><center>
      <strong>Before we can allow you access to our Forum, you must read the rules as stated below.</strong>
    1 Posting rules</font></b></p>
            <li><b><font face="Verdana" size="2">1.1)</font></b> <font face="Verdana" size="2"> <b>Always be respectful and polite when posting</b>-
              There is absolutely no excuse to be rude, confrontational, or hostile
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    <input type="button" id="b2" disabled="true" value="I agree, Activate my account" /></p>

  5. #5
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    Excellent. That should do it. xelawho, if you wouldn't mind PM'ing me your email, I will take care of the rest.


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