Solved

multiple, non-duplicating random image loads

Posted on 1998-03-30
2
218 Views
Last Modified: 2011-10-03
I'm looking to set up a 5 x 5  matrix of images which I would like scrambled every time the page is loaded. I know how to create a random number in JavaScript and use that number to load a numbered gif, such as 1.gif 2.gif, etc. But how would I generate a random loading scheme which will exclude any of the random numbers I've already used?  In other words,  I have 25 images and I want them to load in random order, with equal chance to be in any position in the matrix and not always next to the same other images. Does anyone know how to do that with JavaScript?
0
Comment
Question by:bheerman
2 Comments
 
LVL 3

Accepted Solution

by:
percyn earned 200 total points
ID: 1278939
I guess what you really want to do is randomize the order of an exclusive list of images. Thus you have to maintain a temp array of "already selected numbers" and check against this array for every selection.

You will end up with a double nested for loop with a if statement in it.
0
 

Author Comment

by:bheerman
ID: 1278940
I'm not good enough to complete the script without more help.

What I would really like is a pre-written script that generates a set of non-recurring integers, in my case from 1 to 25, in a scrambled order upon each trigger. I've given up at the point outlined below. (The image tags are for outline purposes, I'm really only stuck on the JavaScript.)

<!-- This document was created with HomeSite 2.5 -->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">

<HTML>
<HEAD>
      <TITLE>Bingo Test</TITLE>
</HEAD>



<SCRIPT LANGUAGE="JavaScript">
<!--
var used = new Array()

if (used =

for(var i=1; i<=25;)


      image01 = ('"+Math.ceil(Math.random()*25) + ".gif")
      
      image02 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image03 = ('"+Math.ceil(Math.random()*25) + ".gif")      

      image04 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image05 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image06 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image07 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image08 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image09 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image10 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image11 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image12 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image13 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image14= ('"+Math.ceil(Math.random()*25) + ".gif")

      image15 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image16 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image17 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image18 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image19 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image20 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image21= ('"+Math.ceil(Math.random()*25) + ".gif")

      image22 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image23= ('"+Math.ceil(Math.random()*25) + ".gif")

      image24 = ('"+Math.ceil(Math.random()*25) + ".gif")

      image25 = ('"+Math.ceil(Math.random()*25) + ".gif")
      




//-->
</SCRIPT>

<BODY>

<TABLE Border="1">

<TR>
<TD>image 1</TD>
<TD>image 2</TD>
<TD>image 3</TD>
<TD>image 4</TD>
<TD>image 5</TD>
</TR>

<TR>
<TD>image 6</TD>
<TD>image 7</TD>
<TD>image 8</TD>
<TD>image 9</TD>
<TD>image 10</TD>
</TR>

<TR>
<TD>image 11</TD>
<TD>image 12</TD>
<TD>image 13</TD>
<TD>image 14</TD>
<TD>image 15</TD>
</TR>

<TR>
<TD>image 16</TD>
<TD>image 17</TD>
<TD>image 18</TD>
<TD>image 19</TD>
<TD>image 20</TD>
</TR>

<TR>
<TD>image 21</TD>
<TD>image 22</TD>
<TD>image 23</TD>
<TD>image 24</TD>
<TD>image 25</TD>
</TR>
</TABLE>



</BODY>
</HTML>

0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Debugging step-by-step Jquery/Javascript 6 59
jQuery detect if it is a mobile device 3 108
Reference Error with plugin 1 31
How can i get the length? 7 19
Having worked on larger scale sites, we found out that you are bound to look at more scalable solutions to integrating widgets, code snippets or complete applications and mesh them into functional sites, in any given composition. To share some of…
This article discusses the difference between strict equality operator and equality operator in JavaScript. The Need: Because JavaScript performs an implicit type conversion when performing comparisons, we have to take this into account when wri…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

863 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now