anchor.diff:  Excursions can be added to a catalogue of excursions (<a href="http://www.vishub.org/catalogue">http://vishub.org/catalogue</a>) where they appear classified by topic. The initial focus of the ViSH was on science, but it is being used now in many other areas. 
   </div><br>
   <div class="header_text margin-top10">
  -<br> 
  -<legend>The Community of ViSH registered users.</legend>
  +<br id="overview2"> 
  +<legend >The Community of ViSH registered users.</legend>
   <br>
   </div><br>
   <div class="header_text margin-top10">
  -Excursions are public objects, which can be freely reused in the classroom, blogs or LMSs by any person having access to the ViSH with a standard Internet access. But to create or modify excursions a user must register in the ViSH and become a member of the community. The ViSH terms of use (<a href="http://vishub.org/legal_notice">http://vishub.org/legal_notice</a>) must be accepted to obtain an account. 
  +Excursions are public objects, which can be freely reused in the classroom, blogs or LMSs by any person having access to the ViSH with a standard Internet access. But to create or modify excursions a user must register in the ViSH and become a member of the community. The ViSH terms of use(<a href="http://vishub.org/legal_notice">http://vishub.org/legal_notice</a>) must be accepted to obtain an account.
   </div><br>
   <div class="header_text margin-top10">
   Each account has a profile where a set of tabs on the left hand side provide access to:
  
positive.code: When a user clones a given excursion a copy is made in the excursion area of his profile. The author of the cloned excursion and previous authors contributing to it, are added to the section “with content from”, such that authorship is properly recognized. The user becomes the owner of the cloned copy and can edit it as needed with the editor.
  </div><br>
  <div class="header_text margin-top10">
  <br> 
  <legend>Importing and exporting excursions.</legend>
  <br>
  </div><br>
  
negative.code: <section id="overview">
  	<div class="whiteframe">
  		<h1>ViSH Overview</h1>
  		<button type="button" class="btn btn-default btn-lg" style="float: right; position: relative">Download as pdf</button>
  		<hr>
  		<ul>
  			<li><h3>Index</h3></li>
  			<a href="#overview1"><li>Introduction to the ViSH</li></a>
  			<a href="#overview2"><li>The Community of ViSH registered users</li></a>
  			<a href="#overview3"><li>Creating virtual excursions with the excursion editor</li></a>
  			<a href="#overview4"><li>Uploading resources from mobiles and tablets</li></a>
  			<a href="#overview5"><li>Cloning virtual excursions</li></a>
  			<a href="#overview6"><li>Importing and exporting excursions.</li></a>
  			<a href="#overview7"><li>Virtual meetings and events with remote and mobile access.</li></a>
  		</ul>
  		<hr>
  	<br id="overview1">	
  <legend>Introduction to the ViSH</legend>
  <br>
  
  <div class="header_text margin-top10">The ViSH (<a href="www.vishub.org">http://vishub.org</a>) is a social and collaborative site for creating knowledge resources for the realization of educational activities. The central element of the ViSH is the virtual excursion, a sequence of visits (enriched slides or viewgraphs), designed for projection in the classroom. Each excursion is a sequence of well-designed visual compositions (mash-up) of multimedia resources linked from the Internet, from the local ViSH repository or from other federated repositories. The name virtual excursion is a metaphor for an excursion in a virtual 
  world of knowledge resources.</div><br>
  <div class="header_text margin-top10">
  Excursions are public HTML5 Web resources, accessible over the Internet by means of a URL, which can be projected in full screen format with a beamer to support classroom activities. Some examples of excursions are:
  </div><br>
  <div class="header_text margin-top10">
  <ul>
  <li>Stellar Trip:<span style="margin-left:12.3%"><a href="http://vishub.org/excursions/595">http://vishub.org/excursions/595</a></span></li>
  <li>Mars Curiosity Rover:<span style="margin-left:7.4%"><a href="http://vishub.org/excursions/83">http://vishub.org/excursions/83</a></span></li>
  <li>Minerals - Amethyst:<span style="margin-left:7.6%"><a href="http://www.vishub.org/excursions/912">http://www.vishub.org/excursions/912</a></span></li>
  <li>Higgs Particle:<span style="margin-left:11%"><a href="http://www.vishub.org/excursions/560">http://www.vishub.org/excursions/560</a></span></li>
  <li>Human 3D model:<span style="margin-left:9%"><a href="http://www.vishub.org/excursions/63">http://www.vishub.org/excursions/63</a></span></li>
  <li>Roman Villas in Spain (Spanish):<span style="margin-left:2%"><a href="http://vishub.org/excursions/632">http://vishub.org/excursions/632</a></span></li>
  </ul>
  </div><br>
  <div class="header_text margin-top10">
  The ViSH allows also the realization of collaborative activities and projects in the classroom involving teachers and students. The use of a shared account supervised by a teacher or tutor is recommended. For example the following excursion is the result of a real geology classroom project for mineral identification performed in a highschool in Galicia (Spain):
  </div><br>
  <div class="header_text margin-top10">
  <ul>
  <li>Classroom project:<span style="margin-left:10.4%"><a href="http://www.vishub.org/excursions/515">http://www.vishub.org/excursions/515</a></span></li>
  <li>Student work (Amatista in Spanish):<span style="margin-left:1.8%"><a href="http://www.vishub.org/excursions/515#8">http://vishub.org/excursions515#8</a></span></li>
  <li>Student work translated to English:<span style="margin-left:2%"><a href="http://www.vishub.org/excursions/912">http://www.vishub.org/excursions/912</a></span></li>
  </ul>
  </div><br>
  <div class="header_text margin-top10">
  Excursions can be projected in a physical classroom in full-screen, like a slide or viewgraph presentation, but can be also:
  