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I need to command HTML to reload a site on opening so it is guarenteed current

Posted on 2003-11-16
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Last Modified: 2010-04-09
I finally got the frames all figured out but know it doesn't refresh the page automatically to guarentee its correctness.  The only way I can see it most current is by clearing the web content on my PC and coming back.  The navigational bar is programmed in JavaScript and mainly everything else is in HTML.

Site: http://www.freewebs.com/demogovclan/

Note: The only page with info thus far is the News page.
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Question by:FordGT90Concept
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Accepted Solution

by:
Zontar earned 125 total points
ID: 9761026
Put these inside the <head>...</head> tags

<meta http-equiv="Content-Expires" content="Tue, 01 Jan 1980 12:00:00 GMT">
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Cache-Control" content="no-cache">
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Author Comment

by:FordGT90Concept
ID: 9761034
not a clue what those lines mean but i'll give it a go...
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Author Comment

by:FordGT90Concept
ID: 9761057
<HEAD>
<meta http-equiv="Content-Expires" content="Tue, 01 Jan 1980 12:00:00 GMT">
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Cache-Control" content="no-cache">
</HEAD>

Is what I added and it didn't work :(
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Author Comment

by:FordGT90Concept
ID: 9761084
Ah, I had to empty the history first then refresh.  So far so good.  Thanks for the help.
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LVL 11

Expert Comment

by:Zontar
ID: 9761110
Another trick is to place the following JS code in all your pages:
<script type="text/javascript">
window.onload = fixLinks;

function fixLinks()
{
  var timeStamp = new Date().getTime();

  if(document.links[0].search.indexOf("?") == -1 && self.location.href.indexOf("?ts=") == -1)
  {
    self.location.href += "?ts=" + timeStamp;
  }
  else
  {
    var allLinks = document.links;

    for(var i = 0; i < allLinks.length; i++)
      allLinks[i].href += (allLinks[i].href.indexOf("?") != -1 ? "&" : "") + "?ts=" + timeStamp;
  }
}
</script>

This adds a querystring in the form of a millisecond timestamp to all the links on your pages, which will make the browser think it's not visited them before.
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LVL 11

Expert Comment

by:Zontar
ID: 9761116
>  Ah, I had to empty the history first then refresh.

LOL, no worries there, mate, my pleasure.
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Author Comment

by:FordGT90Concept
ID: 9761136
should the HTML coded one be placed on every page or which ones?
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Expert Comment

by:Zontar
ID: 9761533
All of them. Any page you don't want to be cached.
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Author Comment

by:FordGT90Concept
ID: 9761573
Okay, thanks again for the help.
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Expert Comment

by:Zontar
ID: 9761743
No worries. :^)
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