Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Image Reload

Posted on 2004-04-19
9
633 Views
Last Modified: 2008-03-17
Hello, i have the following code, it is reloading a picture every 45 seconds, the picture is cached on the server or local computer somehow, and i need this to refresh every time also.

<head>
<meta http-equiv="refresh" content="45">
<META HTTP-EQUIV="cache-control" CONTENT="no-cache">
<META http-equiv="Expires" content="0">
<title></title>
</head>

<body topmargin="0" leftmargin="0" style="background-color: #000000">

<img src="http://www.ktvq.com/q2news/public_html/webcam/webcam.jpg" width="705" height="533">
0
Comment
Question by:GBLX-Bill
  • 8
9 Comments
 
LVL 33

Accepted Solution

by:
knightEknight earned 125 total points
ID: 10859254
<body topmargin="0" leftmargin="0" style="background-color: #000000"
  onload="document.images['webcam'].src='http://www.ktvq.com/q2news/public_html/webcam/webcam.jpg'+Math.random();" >

<img name="webcam"width="705" height="533" />
0
 
LVL 33

Expert Comment

by:knightEknight
ID: 10859259
oops, typo.  Add a "?" after .jpg:

onload="document.images['webcam'].src='http://www.ktvq.com/q2news/public_html/webcam/webcam.jpg?'+Math.random();"
0
 
LVL 33

Expert Comment

by:knightEknight
ID: 10859266
also add a space after the image name and before width:

<img name="webcam" width="705" height="533" />
0
Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 
LVL 33

Expert Comment

by:knightEknight
ID: 10859283
adding a random number to the image URL will force the browser to reload it instead of getting it from the cache.
0
 
LVL 33

Expert Comment

by:knightEknight
ID: 10859335
another way to do this -- if you are using a server script instead of just plain HTML:

  <meta http-equiv="refresh" content="45, url=http://www.yourserver.com/yourpage.asp?<%=rnd()%>" />

or

  <meta http-equiv="refresh" content="45, url=http://www.yourserver.com/yourpage.asp?<%=Math.random()%>" />

0
 

Author Comment

by:GBLX-Bill
ID: 10859629
so for the top example, im confused, can you re-list the final?
0
 
LVL 33

Expert Comment

by:knightEknight
ID: 10859749
sure ... just make sure you name the image consistently in the name and in the onload handler:


<body topmargin="0" leftmargin="0" style="background-color: #000000"
  onload="document.images['webcam'].src='http://www.ktvq.com/q2news/public_html/webcam/webcam.jpg?'+Math.random();" >

<img name="webcam" width="705" height="533" />
0
 
LVL 33

Expert Comment

by:knightEknight
ID: 10859759
(I named it "webcam" but you can name it what ever you want, just reference it consistently in the script.:)
0
 
LVL 33

Expert Comment

by:knightEknight
ID: 10860429
another option is to use the current system time:

onload="document.images['webcam'].src='http://www.ktvq.com/q2news/public_html/webcam/webcam.jpg?'+new Date().getTime();"
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
AdminLTE with wordpress 15 138
Create CSS Animation for Page Transitions 4 38
html Uncheck Checkbox 2 25
IF statment In Powershell 12 15
SASS allows you to treat your CSS code in a more OOP way. Let's have a look on how you can structure your code in order for it to be easily maintained and reused.
Find out what you should include to make the best professional email signature for your organization.
In this tutorial viewers will learn how to position items using CSS's three positioning types Create a new HTML document with an internal stylesheet.: Create another div in CSS and name it Absolute : Type "position:absolute;" and "top:10px; left:50p…
The viewer will the learn the benefit of plain text editors and code an HTML5 based template for use in further tutorials.

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question