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Surveys and collected data are stored on campus. The server is not to be used for long term data storage. Surveys and data will be removed after a year without prior warning.
 
Surveys and collected data are stored on campus. The server is not to be used for long term data storage. Surveys and data will be removed after a year without prior warning.
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== Video ==
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== Demonstrations ==
LimeSurvey supports the use of video in surveys. The manual only describes the use of Flash video. Flash is not supported  by all browsers. It is better to use .mp4 video as described below.
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;[[Demo video]]
 
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;[[Demo time]]
First upload the video. Do this the same way that you upload images. You will not see a preview. There is no need to change anything about the settings.
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;[[Demo random]]
 
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[[File:Video0.png||Upload .mp4 video as if it is an image]]
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[[File:Video1.png||]]
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Click the ''source'' button and change the img tag into a video tag. The 640x480 video ''monitor.mp4'' would show up as:<br/>
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<img alt="" src="/upload/surveys/397931/images/monitor.mp4" /><br/>
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''and must be changed into:''<br/>
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<video width="640" height="480"><source src="/upload/surveys/397931/images/monitor.mp4" type="video/mp4" /></video>
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[[File:Video2.png||]]
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[[File:Video3.png||]]
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Do the demonstration survey to see the result.
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==  Disappearing questions ==
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A similar trick as we used with the h.264 video is also possible to let text disappear after a while. Type some text, click the ''source'' button. Let's assume it looks like this:
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Following text disappears after five seconds:&lt;br/>
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Roses are red, violets are blue, I am gone, and so...
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now change it into the following:
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Following text disappears after five seconds:&lt;br/>
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&lt;div id="question17">
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  Roses are red, violets are blue, I am gone, and so...
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&lt;/div>
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<script type="text/javascript">
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  setTimeout("document.getElementById('question17').style.visibility='hidden'", 3000);
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</script>
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Make sure the id (''question17'') is unique on the question page. It must appear precisely twice (as shown above). The 3000 is the time before the text disappears in ms. Try it in [https://survey.socsci.ru.nl/index.php/615263?lang=en demo time].
      
== FAQ ==
 
== FAQ ==

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