Random Function
Jul 23, 2005
I don't know if this is easy or not, I have no clue on how to start it.
I have Seven different states.
I will be having a form with 7 textboxes, and I will enter 7 different
states each time in the textbox.
When I click on the button, it would call a function
the function would output :
6 different combinations of 3 states. So I would have 1-6 and for each
would list three states I entered in the textboxes.
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Jun 20, 2009
I have found the following code posted by fellow user called Thalantyr in 2006, which randomly changes the colour of buttons and images. It basic but works fine as is.I would like to apply the random function to change the background image of a <div>. The div already has an id with css properties attached. Is there away to apply the function using a class? I have tried changing the 'var eles=document.getElementsByTagName('*')||document.all;' section but it stops working. Code below.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>[code]............
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Feb 9, 2010
<script>
function randomPassword()
{
chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
pass = "";
for(x=0;x<6;x++)
{
[Code]....
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Jan 19, 2009
I have to access code in an external javascript page (random.js) which I have done. But then I have to create a second script element to create the function showlmg() and within that I require statements to declare a variable named imgNumber equal to the value returned by the randomInteger() (which is from the external sheet found in data files from the textbook therefore I know they are right). I am supposed to use 9 as the value of the size parameter in the randomInteger() function. The second statement should be command that writes the following text to the document: <img src='imgNumber.jog' alt= ' '/>.
So basically the coding I have done is:
<script type= "text/javascript" src= random.js"> </script>
<script type="text/javascript">
function showlmg() {
var imgNumber= randomInteger(9);// Return a random number from 0 to 9.
document.write("<img src='imgNumber.jpg' alt=''/>");
}
</script>
All in the head of the document and then
function randomInteger(size) {
return Math.floor((size+1)*Math.random());} from the external file.
and
<tr>
<td colspan="2" class="center">
<script type= "text/javascript">
showlmg();
showlmg();
showlmg();
showlmg();
showlmg();
</script>
</td>
</tr>
To post in a table on the page... I believe the issue is in the declaring a variable the is equal to the result of the function random integer which the text book or anywhere that I can find online fails to explain how to do.
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Aug 4, 2009
I've been asked to do the following using javascript:
-Create a function named randInt() with one parameter of "size". Declare a variable named "rNum" equal to a random integer between 1 and the value of the size variable. Return the value of the "rNum" varialbe from the function.
-Create a function named getQuote() with one parameter anemd "qNum". The function should create an array named mtQuotes with five quotes; there should be no quote for the array index "0". Return the value of the mtQuotes array for the qNum index.
- In the div element of "quotes" insert a script with the following commands: Declare a variable named "randValue" which is euqal to a random integer between 1 and 5 (use the randInt() function). Declare a variable named "quoteText" containing the quote whose array index value is equal to randValue. Write the value of quoteText to the web page.Here is what I have...it returns undefined.
<html>
<head>
<script type="text/javascript">[code]....
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Jun 21, 2011
I've got my code, and the task is to generate two random numbers, the user then inputs an answer for them added together, then the program checks the answer and displays either "correct" or "wrong". Here's some of my code:
Code:
<HTML>
<TITLE>Assessment Task 3 : Rohan Gardiner</TITLE>
<HEAD>
<SCRIPT LANGUAGE ="JavaScript">
function maths(){
var response;
var answer;
answer = document.questions.answer.value;
if (answer==document.adding){
response = "correct";
} else {
response = "wrong";
} document.questions.result.value = response ;
} function randoms() {
rndNum = Math.random();
Num = rndNum*20;
Num1=rndNum*10
document.write(Math.round(Num)+"+"+ Math.round(Num1));
} function adding() {
document.write(Math.round(Num) + Math.round(Num1)); }
</SCRIPT></HEAD><BODY>
<h1 align="center">Rohan Gardiner Assessment Task 3</h1>
<FORM NAME = "questions">
<SCRIPT Language=JavaScript> randoms(); </script>
=
<INPUT TYPE = "textbox" NAME = "answer" > <BR>
<INPUT NAME = "dobutton" TYPE = "button" Value = "check" onClick= "maths()">
<INPUT TYPE = "textbox" NAME = "result" >
</BODY></HTML>
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Aug 25, 2010
Trying to click (onClick) an animated gif image of an on/off switch to start a second animation which is located on a different location on the web-page (a 7-frame animation of a generator with moving parts) immediately followed by a random image selection function placing an image in a 3rd location on the page (next to the generator image). The random images are supposed to look like the result of the generator animation---the item that �pops out� of the generator.
We thought the process to achieve this would be an �OnClick� on the on/off switch-animated-gif to start two javascript functions (generato animation function & random image function). To further complicate matters, we are doing this website in iWeb. We�re using iWeb SEO Tool to add the javascript to the header and HTML snippet in iWeb to place the HTML code. Not sure we�re actually doing the snippet right though---is it supposed to relate to the images---or is it separate? When the gifs are place on the iweb page, they work in the browser upon page load---the �on-click� & the random image function are NOT working...so we know we�ve done something(s) wrong.
We�re thinking that we�re probably missing some code that describes where the 3 different image-spots are on the page (image #1 is the on/off switch gif, image#2 is the generator gif, image#3 is the generator output.png)....or just aren�t coding the string of functions correctly---or maybe our strategy for achieving this is just no correct (?).Here is the code we have tried that didn�t work.
[CODE]
script language = JAVASCRIPT>
<!-- Hide script from old browsers
function gif_animation(){
[code]....
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Oct 13, 2009
I am trying to create a button that when clviked on it will pop up 9 error boxes at random and the user clicks onthem as fast as he/ she can and when the error oxes are done there is a message that asks if you want more here is my code:
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Aug 31, 2011
I'm trying to use Javascript to have an array of images that load randomly AND work in a slideshow manner so change every 3 seconds (in a logical order). The code I have below presents a random image but how do I get them to continue from the random image and change to the next every 3 seconds?
<script language="JavaScript">
images = new Array(3);
images[0] = "<a href = 'photo1.html'><img src='images/photo1.jpg' alt='Photo 1'></a>";
images[1] = "<a href = 'photo2.html'><img src='images/photo2.jpg' alt='Photo 2'></a>";
images[2] = "<a href = 'photo3.html'><img src='images/photo3.jpg' alt='Photo 3'></a>";
[Code]...
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Aug 6, 2009
I've looked for a solution to this issue, but it seems like a little different scenario than other situations. I made a system for generating friend requests on Facebook. I have a grid that is 6 x 3, for a total of 18 cells. Each cell has a picture in it, and the picture is linked to the Facebook friend request page. My problem is that since each cell is populated at random from the array, I'm getting lots of repeats. For example, some picutures are in 5 cells, and some are in none. I'm trying to figure out how to make it so that once a picture is used once in the grid, it does not get used again in the same grid.I still want every cell filled at random on each page load, I just want to prevent the repeating.
Here's my current code:
<script type="text/javascript">
var vip_list=new Array(
new Array('http://profile.ak.fbcdn.net/v225/1616/88/s1220771654_2158.jpg','http://www.facebook.com/addfriend.php?id=1220771654'),
new Array('http://profile.ak.fbcdn.net/v223/1233/29/s904885342_9055.jpg','http://www.facebook.com/addfriend.php?id=904885342'),
[Code]...
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Apr 18, 2011
For my website I would like to create a famous last words generator (randomized), and random page generator (within my site). What is the code for random quotes and random links?
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Dec 14, 2011
I am new to javascript but have been using java for quite a while. I am looking to make a random quote (out of ten possible quotes) appear in my h2 tag in a page i am working on. In java, i would make a random number generator, in javascript it looks like this:
Code:
var randomnumber=Math.floor(Math.random()*11)
Then make an if statement:
Code:
if randomnumber=1 {
var quote="Live long and prosper"
}
document.write(var quote); Could someone more experienced than me tell me if my code looks good and how would a go about getting "var quote" in my h2 tag?
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Jun 3, 2010
JavaScript Challenge Play--Random Color (The English Version of JavaScript)
Write a function to return a string that can represents a color.
Requirements:
1. The color is random. The color string can be similar to "cf9c63", also similar to "rgb (211,100, 180)".
2. Code should be concise, clear, easy to read, good performance, and better than my solution.
And go to [url] to see more!
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Jul 23, 2005
How would I go about this? I found this piece of code, but this only allows
two links. Does anyone know how to expand on this to add 10 or more?
<script type="text/javascript">
var r=Math.random()
if (r>0.5)
{
document.write("<a href='http://www.w3schools.com'>Learn Web
Development!</a>")
}
else
{
document.write("<a href='http://www.refsnesdata.no'>Visit Refsnes
Data!</a>")
}
</script>
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Jul 23, 2005
How can i manage it (html or jscript with css) that everytime a user loads
or refreshes a page, the page has a new bgcolor.
I want to put it in a single file, so that all my pages have the same color,
but after every refresh a new random one.
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Aug 7, 2005
I'm new at Javascript, and have written a script for a series of random
roll-over button images, but one thing I would like to add is a function
that checks to make sure that there are no duplicates in the randomly
generated variables that choose the pictures.
Can anyone give me a hand with this? One other thing I can't seem to figure
out is how to manage the "onLoad" aspect of caching my roll-over images (DW
has locked the <body onload> function into a template, so I can't mess with
it...). so my rollover graphics are grabbed from the server in "real time"
during mouse-over, which is a bit "goofy" and "slow" in terms of instant
rollover effect. I'm sure that there is a much more efficient way of doing
this, but I've been able to learn a lot by tweaking DW's way of doing
things, so it's not a total loss.
In an external JS file, I set up a series of 10 random variables using the
Math.random and Math.round functions like so:
var btn0 = Math.random()*100;
btn0 = Math.round(btn0);
var btn1 = Math.random()*100;
btn1 = Math.round(btn1); .... etc for 10 buttons
Then in my page, I piggy-back onto Dreamweaver's built-in roll-over
handlers, like so (to write the instances of each rollover image);
<script>document.write('<a href="link1.htm" onMouseOut="MM_swapImgRestore()"
onMouseOver="MM_swapImage('pic1','','images/btns/'+btn0+'b.jpg',1)"><img
src="images/btn/'+btn0+'a.jpg" name="pic1" width="80" height="100"
border="0"></a>');</script>
For this particular page, I'm pretty much stuck with DW's coding because
it's locked into a template that governs my site navigation. Thanks for any
pointers or help ...
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Jul 20, 2005
I've found examples of bookmarklets that select a URL from a page at
random, but I'd like one that generates part of the URL at random.
If you have a bunch of images that are named:
mydomain.com/images/abcd.jpg where abcd is can be any combination of 4
lowercase letters - is there a way of having the bookmarklet generate
the letters randomly when clicked?
I'm able to do it using AppleScript & Safari but would like it to work
from within Safari - which is missing the "Scripts" menu that most Apple
apps have :(
It looks as if bookmarklets are the only option, but I've only ever used
javascript to select randomly from existing arrays of images and don't
fancy typing in the names of a couple of thousand images...
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Jul 20, 2005
I am trying to do is have:
1.) the background color to change randomly with 5 different colors.(change
on page load)
2,) 10 different quotes randomly fadeing in and out in random spots on the
webpage. with a delay timer on them, so they keep changing as the page is
open. Not random each time the page is loaded.
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Jul 20, 2005
I remember there is a programming language where you can initialize the
random number generator, so that it can - if you want - give you the exactly
same sequence of random numbers every time you initialize it with the same
parameter. Can this be done with JavaScript? I couldn't find anything in the
documentation. Basically, what I want to achieve is to obtain always the
same sequence of random numbers for the same given initialization value (but
of course different sequences for different init values).
Can this be done in JavaScript?
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May 14, 2009
Problem: I have three containers (divs) all with different background images assigned via a class. Each div will contain a background image displaying a different product. I'd like these three divs to randomly assign a class via JavaScript.The problem I'm running into is preventing the same class from being assigned twice to two divs on the same page load. Then you'd have two divs with the same background image.
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Feb 24, 2011
I have an array of strings, like this:
[Code]...
Now i got a function newgame() and i wanna display random word from this array in rectangles gray styled...
Here is the problem. I can make to display random words, but i dont know how i make this words with the css style together - rectangels around a char. But the words are different length so i dunno?
[Code]..
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May 22, 2011
I can generate a random number between 1 and 9,
( var rand_no = Math.floor( 1 + Math.random() * 9 ); )
but I want to add that random number to a value that is enterred into an inputbox and get a total. How can I do this using Javascript and put the result into a hidden field. I will also need to use that same random number in another place on another form .
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Aug 31, 2011
I'm trying to apply something in my forums, where a member could post something let's say:"Hi, I am number 1, 6"And what would happen is that, a number from 1 to 6 would be the content, for example, it would be:"Hi, I am number 3"But if you refresh the page, it would still be the same number. Like it won't be randomized again.So how do I make a javascript/html code that would make a one time number randomizer.
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Oct 20, 2007
I am using a module called mod_pageear in my joomla based site that displays an image in the page when the trigger is scrolled over. I would like to change the code to access images in a folder on a random basis. The existing section of the code that accesses the single image is as follows: Code:
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Sep 29, 2010
i am making a chat app using php/mysql
i am faceing a problem here ..i want that user click on button and it give him a random online user from database...but dont know how to do it ..i am trying..
{
$i=0;
while ($i < $num)
{
[Code].....
i just want that onclick give me random user for chat ...
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Nov 15, 2009
can someone clarify how to use random images
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