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

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Posted on 1998-03-30

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?

2 Comments

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

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(

image02 = ('"+Math.ceil(Math.random(

image03 = ('"+Math.ceil(Math.random(

image04 = ('"+Math.ceil(Math.random(

image05 = ('"+Math.ceil(Math.random(

image06 = ('"+Math.ceil(Math.random(

image07 = ('"+Math.ceil(Math.random(

image08 = ('"+Math.ceil(Math.random(

image09 = ('"+Math.ceil(Math.random(

image10 = ('"+Math.ceil(Math.random(

image11 = ('"+Math.ceil(Math.random(

image12 = ('"+Math.ceil(Math.random(

image13 = ('"+Math.ceil(Math.random(

image14= ('"+Math.ceil(Math.random(

image15 = ('"+Math.ceil(Math.random(

image16 = ('"+Math.ceil(Math.random(

image17 = ('"+Math.ceil(Math.random(

image18 = ('"+Math.ceil(Math.random(

image19 = ('"+Math.ceil(Math.random(

image20 = ('"+Math.ceil(Math.random(

image21= ('"+Math.ceil(Math.random(

image22 = ('"+Math.ceil(Math.random(

image23= ('"+Math.ceil(Math.random(

image24 = ('"+Math.ceil(Math.random(

image25 = ('"+Math.ceil(Math.random(

//-->

</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>

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