Solved

Image Reload

Posted on 2004-04-19
9
636 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
[X]
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
  • 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
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
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

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Suggested Solutions

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.
Finding original email is quite difficult due to their duplicates. From this article, you will come to know why multiple duplicates of same emails appear and how to delete duplicate emails from Outlook securely and instantly while vital emails remai…
The viewer will learn how to create a basic form using some HTML5 and PHP for later processing. Set up your basic HTML file. Open your form tag and set the method and action attributes.: (CODE) Set up your first few inputs one for the name and …
Video by: Mark
This lesson goes over how to construct ordered and unordered lists and how to create hyperlinks.

752 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