Generating Random Images With No Repeats?
Jan 22, 2009
I want a certain amount of image spots to show a certain set of images (specifically 8) in a random order every time the page is refreshed. I do not want the images to be repeated, however. The solution I came up with was to create an array and generate a number one to eight and then compare that number to the numbers previously in the array, and if it matched one that was previously generated, to generate a new number and then compare it. This continues until i have an array of the numbers 1-8 in a random order.
var imgs=new Array(8);
for(i in imgs)
{
function generate()
{
return Math.floor(1+Math.random()*8);
[Code]...
This does not strike me as the most efficient way to go about this. If someone has a better solution,
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Mar 11, 2004
Ive trawled through google and the tutorials on here to no avail.
Im after creating a function to assign image sources of 16 img's (within cells) to cell*.gif. There must be no repeats and it needs to be within 0-15. (randomly called from a button)
I have tried comparing two arrays (1 containing 1-15.gif and the other 0's to set to 1 when used) -- i just ended up completely confused.
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Jun 30, 2010
I've got an array of images that I want to randomly attach themselves in some <li> tags. Right now I've got everything working great except the images repeat sometimes repeat themselves.Is there any way to make the images not repeat?Here's the code:
Code JavaScript:
// Random Image
var theImages = new Array()
[code]....
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Nov 15, 2009
I am trying to display a random number, but each time a button is pressed that calls the test function, i don't want to random number to be repeated. I know I have to declare 2 variables and a while loop, but i'm stuck as to what to put in the second variable and in the while loop.
var random = Math.floor(Q * Math.random());
var random2 = ??
function test () {
document.write(random);
while (random == random2) {
document.write(random);
}}
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Sep 25, 2006
I currently have a Javascript application that randomizes about 200
images. The problem is that the images preload, which causes the entire
site to not come up until all the images are loaded. I'd like to find a
Javascript application that can load images as they are randomly
chosen. In addition, I'm trying to figure out how to not display the
same image more than once; or at least until after the 200 have been
displayed, then create a new randomization of the 200 images.
Let me know if anyone knows how to do this or can point me to code that
is able to do what I'm looking for.
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May 11, 2010
I'll get to the point, I'm a noob I'm using greasemonkey for a certain website. Basically, I'm using gm to refresh the page after a certain time, I was however wondering, If I can set it to a random number between 2 specific times?
The code I'm using atm is setTimeout(function() { document.location.reload(); } , 10000); I know I have to use math.random, well, I think I do. But I'm not sure how to do it between 2 certain times? So to summarise, I'm trying to refresh a page at any given random time between say 5-10 minutes.
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Feb 28, 2006
In the forum, it usually talked about generating a number between 1 or 0 to that certain value using something like Math.round(Math.random() * 200); or Math.floor(Math.random() * 200);
But what do you do if you want to generate a number between 201 and 400.
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Aug 27, 2006
I run a random number generating service for a RPG message board I go to, and my website generates only numbers from 1-100. How could I script this so that the user can get random numbers between 1-X?
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Aug 9, 2009
New to JS, and not too good at it. Trying to take some prewritten code and add script that displays some random text. Having trouble with assignment. Instructions are to replace a section of the file I am given with a script element. In the script element I am suppose to declare a variable named tipNum equal to a random integer between 1 and 10 returned by the randInt() function (which I made and have shown below). Then I am suppose to use a series of document.write() methods to write the following HTML code into the page:
<h1>Random Tip<br />title</h1>
<p>tip</p>
(Where "title" is the title of the random text as generated by the tipTitle() function from a external file, and which I did not make; and "tip" is the text of the random tip as genereated by the tipText() function, which is also from the external file, and not made by me) My code for the randInt() function is
function randInt(lower, upper) {
var size = ++(upper - lower);
var randValue = Math.floor(lower + size*Math.random());
}
The script I made to display the HTML code is
[Code]...
I am getting nothing on my page where the random text should be.
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May 18, 2011
For a computer science class homework assignment I need to create a page where an image changes randomly when a button is clicked. This is what I have so far, nothing happens when button is clicked. I need the button to randomly return one of the five images described in the emotions function. Please help, I sorely need it.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> Picture Fun </title>
<style type="text/css">
body {font-family: verdana; margin-top: 1in}
[Code]...
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Jan 22, 2011
What I'm looking to do is have a folder of images that I have show up on my website.I'm also looking to pull from this folder up to 6 or 7 times on the same page w/ randomized pictures that do not repeat.Finally, I'm looking to be able to size and name these images based on which image randomly pulls. b/c it's not grabbing the images.
images = new Array()
images[images.length] = 'images/example.jpg'
images[images.length] = 'images/example.jpg'[code].....
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Nov 15, 2009
can someone clarify how to use random images
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Sep 25, 2009
I am basically looking to create a background for my website and when you refresh the page the image changes to another picture for the background. I have asked one of my good friends to have a look at it and he gave me some code to work with and so I have changed bits here and there and it worked in firefox and safari but will not work in IE. I have attached the code here for you and also the html file.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[URL]">
<html xmlns="[URL]">
</head>
<style type="text/css">
<!--
#myFlash {
position:absolute;
width:100%;
height:100%;
margin:0;
padding:0;
left:0;
right:0;
z-index:20;
}
-->
</style> .....
There is also a flash file embedded into this document!
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Oct 11, 2010
I want to display 4 random images and I would like to get them to NOT repeat themselves. So if image one is randomly selected as "aceclubs.png" I don't want image two to be the same and so on for the other images. This currently the code I'm using right now. I've been duplicating this function with different names for each of the 4 images. However it sometimes produces two of the same image and I don't want that.
function random_ace(){
var cardace = new Array(4)
cardace[0] = "aceclubs.png";
cardace[1] = "acediamonds.png";
cardace[2] = "acehearts.png";
cardace[3] = "acespades.png";
var randomace = Math.floor(Math.random()*cardace.length);
var ace = cardace[randomace];
card1.src=ace
}
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Apr 12, 2011
Reference website: Untitled Document.The above webpage contained simply javescript of random images in full screen & menu made by Sothink DHTML Menu.In Chrome & Firefox the content display perfectly with no issue. However, it's all blank or, only the menu showed up in IE6 & IE7. I am not sure in IE8 & IE9 as I don't have them.
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Jan 7, 2004
Code:
I've tried looking for a script that will do the same but I keep coming across javascripts that will change just one image randomly or change multiple images randomly but the images aren't related.
I also have seen PHP scripts with full-fledged features and an admin panel where I can create ad farms to accomplish my goal but I think that's overkill.
Does anyone know where I can find this javascript? FYI, I am weak at writing javascript myself so that's why I'm looking for a cut-and-paste script.
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Jul 11, 2005
For years I used a javascript code to generate random banners/images in my site. Everithing worked fine.
But recently I moved to another host and the code dosnt work properly, i.e., if you open the browser and go to www.megafarol.pt the imagens dont show up. You need to hit Refresh to work properly. Also, if you return to that page, then everithing works fine.
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Sep 1, 2005
This script produces 5 random images and works lika a dream. Im trying to figure out how to create links for each of the five rotating images, so the link would also rotate and reflect the new image? Code:
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Oct 25, 2005
I have seen lots of PHP scripts and javascripts for what I need, but none that seem to fit exactly.
I'd like a simple page with two image windows, the same size, one on the upper left and one on the upper right. The images are about 250 x 200. I'd like the pictures in these panes to change randomly. It's sort of a slideshow, except that I'd like the images to change from a random pool of images and it will be automatic; there will be no previous/next buttons or links.
I've seen a PHP slideshow that did this, but only when the page was refreshed. I've seen javascript slideshows, as well. I've used a Dreamweaver extension called flevOOware in the past.
Can anyone recommend some javascript that would work for this? Ideally it could work for multiple images on a page.
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Jul 23, 2005
I would like to make a slide show using random images. The problem is my
host is 250.com, and they don't support cgi-programs. Is there another
way to accomplish random images?
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Sep 22, 2010
I've been looking everywhere for the answer to this problem- maybe your site and members is the one who can do it the random images are working as I want, EXCEPT, I want to make each one of these random images clickable to a url.It would be great if you knew. Also - if you know how to add a matching quote for each image right underneath it, that would be awesome, but having the clickable image is more important right now but I have not had any luck with matching up links and images in the 4 td cells.
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Mar 28, 2009
I am trying to make a script that will display a random banner, and also cloaks the url in the browser status bar in the bottom left. I have found these 2 seperate scripts on the net, this one was for cloaking the url
<a onclick="parent.location.href='[URL';
return event.returnValue=false"
href=[URL]>Anchor Text</a>
And this one was for the random banner
<script language="JavaScript"><!--
//Javascript Created by Computerhope [URL]
//store the quotations in arrays
images = new Array(4);
images[0] = "<a href = '[URL]'><img src='[URL]' alt='Visit Computer Hope'></a>"; .....
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Aug 5, 2009
I'm trying to show random images with a timer of 3 seconds.I'm still learning this (starting to :s)
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Sep 3, 2009
I have this beautiful script for pocket pc that randomly rotates pictures in the background with fade in/out effect. Now, what I want it to do is to split all the pictures I have in groups so that on every refresh the script randomly chose a GROUP of pictures and THEN rotated only the pictures from this group. I want to do this because if you include say 30 pictures into the script this really hangs the RAM memory, and if there are only 5 pictures to choose from its much more faster. Here's the script from html page:
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<style>
body {
background-color: white;
margin: 0;
padding: 0;
}
[Code]...
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Dec 18, 2009
Random non-repeating images script. You can see an example at [URL]. Refresh and you'll see the PS3 boxarts on the top left will show randomly, with no repeats.
In your html page
in head tag
<style>
img.boxart{
margin:0;
border: none;
display:block;
float:left}</style>
<script type="text/javascript" src="ps3boxart.js"></script>
In body tag (place whereever in the body you want the pictures to show)
<script type="text/javascript">
randomorder(ps3ba, '')
</script> .....
function randomorder(targetarray) {
var randomorder=new Array()
var the_one
var z=0
for (i=0;i<targetarray.length;i++)
randomorder[i]=i
while (z<targetarray.length) {
the_one=Math.floor(Math.random()*targetarray.length)
if (targetarray[the_one]!="_selected!"){
document.write(targetarray[the_one])
targetarray[the_one]="_selected!"
z++
}}}
Then obviously, you would use this as a baseline and change your .js file name to whatever your pictures are for, like ads.js or whichever. Change the links in ahref to whereever you want each page to link. Change the image locations in img src to whereever your images are saved. Remember, where it says var z=0... this is where you hide extra random images. For example, my 200px cell only fits 9 22px wide images (they equal 198px). I only have 9 in my ps3 boxart image folder. If I want 50 in there... I would upload the pics to the folder with the other ones, add them to the list in the .js file. Such as ps3ba[9]=, ps3ba[10]=, etc. up to [49] (49 + 1 for [0] = 50). Then since I can only fit 9 in my cell, I would have to change the variable to var z=41 (to hide 41 of them and only show 9).
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Aug 4, 2011
I basically want a random image to show up on my webpage and start scrolling through more images i've set to that list.
Here's what I have thus far. However, It'll always start by bringing up the same image and then change to an error image:
Here's the Website I'm having problems on (So you can visually see what I mean - Under "TV ManiaX Home Page sub-heading): [url]
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