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JavaScript - Random Image Array
Hi,
please look at: http://bit.ly/hO5VBE then click 'play app match' you'll see the images are taken from the first 15 in an array, then doubled and randomized. however, i want the the images taken to be a random selection from an array of 15+ images. so the array would be e.g. 25 images, and i want any 15 of those 25 to be chosen (then doubled and randomized) rather than the first 15 taken. any help would be great! James p.s. if you load the main page while hovering over an icon, its tooltip will be "undefined".. any ideas to stop this? Thanks! Similar TutorialsI'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: 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'),
new Array('http://profile.ak.fbcdn.net/v229/1574/66/s1752031238_626.jpg','http://www.facebook.com/addfriend.php?id=1752031238'),
new Array('http://profile.ak.fbcdn.net/v223/768/71/n661155042_7325.jpg','http://www.facebook.com/addfriend.php?id=661155042'),
new Array('http://profile.ak.fbcdn.net/v226/732/26/n1827289885_2478.jpg','http://www.facebook.com/addfriend.php?id=1827289885'),
new Array('http://profile.ak.fbcdn.net/v229/1631/70/s1425313768_1140.jpg','http://www.facebook.com/addfriend.php?id=1425313768'),
new Array('http://static.ak.fbcdn.net/pics/s_silhouette.jpg','http://www.facebook.com/addfriend.php?id=1667023416'),
new Array('http://profile.ak.fbcdn.net/v225/1146/29/s506485704_9532.jpg','http://www.facebook.com/addfriend.php?id=506485704'),
new Array('http://profile.ak.fbcdn.net/profile6/270/32/s692160490_8745.jpg','http://www.facebook.com/addfriend.php?id=692160490'),
new Array('http://profile.ak.fbcdn.net/v229/114/83/s1218176198_7375.jpg','http://www.facebook.com/addfriend.php?id=1218176198'),
new Array('http://profile.ak.fbcdn.net/v226/946/4/s1470171885_4973.jpg','http://www.facebook.com/addfriend.php?id=1470171885'),
new Array('http://static.ak.fbcdn.net/pics/s_silhouette.jpg','http://www.facebook.com/addfriend.php?id=1329505888'),
new Array('http://static.ak.fbcdn.net/pics/s_silhouette.jpg','http://www.facebook.com/addfriend.php?id=1325496968'),
new Array('http://profile.ak.fbcdn.net/v223/1546/92/s1536913202_2017.jpg','http://www.facebook.com/addfriend.php?id=1536913202'),
new Array('http://static.ak.fbcdn.net/pics/s_silhouette.jpg','http://www.facebook.com/addfriend.php?id=1624715433'),
new Array('http://profile.ak.fbcdn.net/v228/1282/58/s713998257_3682.jpg','http://www.facebook.com/addfriend.php?id=713998257')
);
var chosen_vip=Math.floor(vip_list.length*Math.random());
var chosen_vip1=Math.floor(vip_list.length*Math.random());
var chosen_vip2=Math.floor(vip_list.length*Math.random());
var chosen_vip3=Math.floor(vip_list.length*Math.random());
var chosen_vip4=Math.floor(vip_list.length*Math.random());
var chosen_vip5=Math.floor(vip_list.length*Math.random());
var chosen_vip6=Math.floor(vip_list.length*Math.random());
var chosen_vip7=Math.floor(vip_list.length*Math.random());
var chosen_vip8=Math.floor(vip_list.length*Math.random());
var chosen_vip9=Math.floor(vip_list.length*Math.random());
var chosen_vip10=Math.floor(vip_list.length*Math.random());
var chosen_vip11=Math.floor(vip_list.length*Math.random());
var chosen_vip12=Math.floor(vip_list.length*Math.random());
var chosen_vip13=Math.floor(vip_list.length*Math.random());
var chosen_vip14=Math.floor(vip_list.length*Math.random());
var chosen_vip15=Math.floor(vip_list.length*Math.random());
var chosen_vip16=Math.floor(vip_list.length*Math.random());
var chosen_vip17=Math.floor(vip_list.length*Math.random());
document.write('<center>');
document.write('<a href="',vip_list[chosen_vip][1],'" target="_blank"><img src="',vip_list[chosen_vip][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip1][1],'" target="_blank"><img src="',vip_list[chosen_vip1][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip2][1],'" target="_blank"><img src="',vip_list[chosen_vip2][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip3][1],'" target="_blank"><img src="',vip_list[chosen_vip3][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip4][1],'" target="_blank"><img src="',vip_list[chosen_vip4][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip5][1],'" target="_blank"><img src="',vip_list[chosen_vip5][0],'" height="60" width="60"></a>');
document.write('<br>');
document.write('<a href="',vip_list[chosen_vip6][1],'" target="_blank"><img src="',vip_list[chosen_vip6][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip7][1],'" target="_blank"><img src="',vip_list[chosen_vip7][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip8][1],'" target="_blank"><img src="',vip_list[chosen_vip8][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip9][1],'" target="_blank"><img src="',vip_list[chosen_vip9][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip10][1],'" target="_blank"><img src="',vip_list[chosen_vip10][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip11][1],'" target="_blank"><img src="',vip_list[chosen_vip11][0],'" height="60" width="60"></a>');
document.write('<br>');
document.write('<a href="',vip_list[chosen_vip12][1],'" target="_blank"><img src="',vip_list[chosen_vip12][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip13][1],'" target="_blank"><img src="',vip_list[chosen_vip13][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip14][1],'" target="_blank"><img src="',vip_list[chosen_vip14][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip15][1],'" target="_blank"><img src="',vip_list[chosen_vip15][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip16][1],'" target="_blank"><img src="',vip_list[chosen_vip16][0],'" height="60" width="60"></a>');
document.write('<a href="',vip_list[chosen_vip17][1],'" target="_blank"><img src="',vip_list[chosen_vip17][0],'" height="60" width="60"></a>');
document.write('<br>');
</script>
Any suggestions? Thank you! Here's what I usually use and have been using for years and it works great, just not for this particular purpose. I don't have a clue when it comes to javascript. Code: <noscript><img src="no_script_quote.gif" width="406" height="94"/></noscript><script language="javascript">
var delay=6000
var curindex=0
var images=new Array()
images[0]="quote1.gif"
images[1]="quote2.gif"
images[2]="quote3.gif"
images[3]="quote4.gif"
images[4]="quote5.gif"
var preload=new Array()
for (n=0;n<images.length;n++)
{
preload[n]=new Image()
preload[n].src=images[n]
}
document.write('<img name="defaultimage" src="'+images[Math.floor(Math.random()*(images.length))]+'">')
function rotateimage()
{
if (curindex==(tempindex=Math.floor(Math.random()*(images.length)))){
curindex=curindex==0? 1 : curindex-1
}
else
curindex=tempindex
document.images.defaultimage.src=images[curindex]
}
setInterval("rotateimage()",delay)
</script>
But, now I want to be able to set a default picture to be shown first and have the random pics appear next. I also don't want the default pic to show up again in the random array. So basically, every time the page was first visited, or refreshed it would show the default picture then move into the random pics. Is there anyway to modify the code that I'm using to accomplish this? Or... Any help would be appreciated. Thanks, Dell What I am doing is working on a shooting app that will randomly call out different targets to shoot. I have it so it will randomly organize them but I need it so it pulls a single one. Any help would be appreciated! Code: <html>
<body>
<p id="demo">Click the Button to Call out a target</p>
<button onclick="myFunction()">Call Out</button>
<script type="text/javascript">
function myFunction()
{
var myarray=["red","blue", "yellow", "orange"]
myarray.sort(function() {return 0.5 - Math.random()})
var x=document.getElementById("demo");
x.innerHTML=myarray;
}
</script>
</body>
</html>
Hey folks.. Hope you can help, I'm completely new to this and have no knowledge at all when it comes to javascript. Have been using this script on my site for a while. Is there anyway I can add a URL link to the images that are in my selector? When clicked would go to that page on my website. Thanks in advance of any help Nat <script language="JavaScript"> /* Random image slideshow- By Tyler Clarke (tyler@ihatecoffee.com) For this script and more, visit http://www.javascriptkit.com */ var delay=10000 //set delay in miliseconds var curindex=0 var randomimages=new Array() randomimages[0]="http://www.anywebsite.com/images/splash1.jpg" randomimages[1]="http://www.anywebsite.com/images/splash2.jpg" randomimages[2]="http://www.anywebsite.com/images/splash3.jpg" randomimages[3]="http://www.anywebsite.com/images/splash4.jpg" randomimages[4]="http://www.anywebsite.com/images/splash5.jpg" var preload=new Array() for (n=0;n<randomimages.length;n++) { preload[n]=new Image() preload[n].src=randomimages[n] } document.write('<img name="defaultimage" src="'+randomimages[Math.floor(Math.random()*(randomimages.length))]+'">') function rotateimage() { if (curindex==(tempindex=Math.floor(Math.random()*(randomimages.length)))){ curindex=curindex==0? 1 : curindex-1 } else curindex=tempindex document.images.defaultimage.src=randomimages[curindex] } setInterval("rotateimage()",delay) </script> Hello, I have an array containing 100 different values. How would I randomly pick 25 of them for display? For now I do: PHP Code: for (var i=0; i<markers.length && i<25; i++) { html += markers[i].name + '<br />'; } Which of course returns 25 values but always in the same order which is not what I want. Thanks in advance! PS. My array could also contain only 20 values, in which case I would like the function to display the 20 values randomly sorted. My array contains 15 value I want to random pick 5 value: Code: myArray[0] ="a"; myArray[1] ="b"; myArray[2] ="c"; myArray[3] ="d"; myArray[4] ="e"; myArray[5] ="f"; myArray[6] ="g"; myArray[7] ="h"; myArray[8] ="i"; myArray[9] ="j"; myArray[10] ="k"; myArray[11] ="l"; myArray[12] ="a"; myArray[13] ="b"; myArray[14] ="c"; How to random pick from all elements with no repeat of the same content. e.g. if myArray[0] is picked then myArray[12] will not be picked again. (because they have the same value "a") I am taking a Javascript class and the teacher assigned this: Quote: Write a script that uses a random number generation to create sentences and name it sentences.html. Use five arrays of strings called: uppercase article (uarticle), noun, verb, lowercase article (larticle), and preposition. You will need to use the correct case for the article arrays. Create a sentence by selecting a word at random from each array in the following order: uarticle, noun, verb, preposition, larticle, noun. You can find examples of generating random numbers in both Fig. 8.6 (dice-rolling) and Fig. 8.7 (random image) of Chapter 8. The arrays should be filled at minimum, as follows: the article array(s) should contain the articles: the, a, one, some and any. The noun array should contain the nouns: boy, girl, dog, town and car. The verb array should contain the verbs: drove, jumped, ran, walked, and skipped. The preposition array should contain the prepositions: to, from, over, under and on. If you would like to add more words, adjust the arrays appropriately. As each word is picked, concatenate it to the previous words in the sentence. The words should be separated by spaces. When the final sentence is output, it should start with a capital letter and end with a period. The program should generate 20 sentences and output them to the screen (document.write or document.writeln). You should use a for loop similarly to the one used in Fig. 8.6 in order to get it to print 20 times. I haven't gotten to the loop yet, I'm just working on the random sentence first. Here is what I have: Code: <script type="text/javascript">
<!--
uarticle = new Array("The", "A", "One", "Some", "Any");
noun = new Array("boy", "girl", "dog", "town", "car");
verb = new Array("drove", "jumped", "ran", "walked", "skipped");
larticle = new Array("the", "a", "one", "some", "any");
preposition = new Array("to", "from", "over", "under", "on");
var rand1 = [Math.floor ( Math.random() * uarticle.length )];
var rand2 = [Math.floor ( Math.random() * noun.length )];
var rand3 = [Math.floor ( Math.random() * verb.length )];
var rand4 = [Math.floor ( Math.random() * larticle.length )];
var rand5 = [Math.floor ( Math.random() * preposition.length )];
document.write(uarticle[rand2] + " " + noun[rand2] + " " + verb[rand3] + " " + preposition[rand1] + " " + larticle[rand4] + " " + noun[rand2] + ".");
-->
</script>
Am I on the right track? How would I loop the sentences using a for statement? Another homework assignment that I can't quite seem to get to work... 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. thanks. Code:
<html>
<head>
<script type="text/javascript">
function randInt(size) {
var rNum=Math.ceil(Math.random()*5);
return(rNum);
}
</script>
<script type="text/javascript">
function getQuote(qNum);
var mtQuotes = new Array();
mtQuotes[0] = "";
mtQuotes[1] = "I smoke in moderation, only one cigar at a time.";
mtQuotes[2] = "Be careful of reading health books, you might die of a misprint.";
mtQuotes[3] = "Man is the only animal that blushes or needs to.";
mtQuotes[4] = "Clothes make the man. Naked people have little or no influence on society.";
mtQuotes[5] = "One of the most striking differences between a cat and a lie is that a cat has only nine lives.";
return mtQuotes[qNum];
</script>
</head>
<body>
<div id="quotes">
<script type="text/javascript">
var randValue=randInt(5);
var quoteText=getQuote(randValue);
document.write(quoteText);
</script>
</div>
Well I have an array and a button to select a random integer from the array, how do I make it so that it selects every integer once til all are selected, then it starts over again? For example, an array has these: A B 1 2 Q F So you press the button a number of times, and you get: Q B 1 F A 2 Instead of: 1 Q A 1 B A hi I'm just new to java and I'm trying to write a script that will shuffle the information in a array with no gaps and no repeats. below is that code that i have so far. thanks ben [CODE] //constants SWAPS_TO_BE_MADE = 30; //variables var myArray = new Array('Ace',2,3,4,5,6,7,8,9,10,'Jack','Queen','King'); // the array that entities will be shuffled from var temp = 0; var outPutArray = new Array (12); var arrayLength = myArray.length; var index = 0; var swapIndex = 0; var self_swaps = 0; var counter = 0; temp=myArray[swapIndex] document.write('<h1>Array shuffling</h1>'); document.write('<p>Before shuffle: '+myArray+'</p>'); //loop while(counter < SWAPS_TO_BE_MADE) { index =Math.floor(Math.random()*arrayLength); swapIndex =Math.floor(Math.random()*arrayLength); var index_value = index; var range = 1; myArray.splice(index_value,range,'spilced'); outPutArray[swapIndex] = index; if(index == swapIndex) { self_swaps++; } counter++; index = (index + 1 % arrayLength); swapIndex= (swapIndex + 1 % arrayLength); } document.write('<p>After shuffle: '+outPutArray+'</p>'); document.write('<p>After shuffle: '+myArray+'</p>'); [ICODE] Hi, im wondering if anyone can help me, i have a random image script and it works fine, apart from when you click on the images they link to the right place but ALL go to _self I want [2],[3]and[6] to link to the places they are already linking to but _blank NOT _self, does anyone know how to do this, it would be a massive help :) Below is the code for the script i am using: Code: <script language="JavaScript">
function random_imglink(){
var myimages=new Array()
//specify random images below. You can have as many as you wish
myimages[1]="images/layout/bottom gallery.png"
myimages[2]="images/layout/bottom facebook.png"
myimages[3]="images/layout/bottom twitter.png"
myimages[4]="images/layout/bottom team.png"
myimages[5]="images/layout/bottom whats on.png"
myimages[6]="images/layout/bottom forum.png"
//specify corresponding links below
var imagelinks=new Array()
imagelinks[1]="gallery.html"
imagelinks[2]="http://www.facebook.com/tos.php?api_key=fcddbaae811ef62bf3c4fb2ac7b1fd07&next=http%3A//dailyphoto-1402445175.us-east-1.elb.amazonaws.com/dailyphoto/applications/buffer/id%3A1/pid%3A2828044108236222753/from%3Apublisher.attachment.own.image?ref=nf&v=1.0&canvas#/group.php?gid=87957825200&ref=ts"
imagelinks[3]="https://twitter.com/groundzereo"
imagelinks[4]="team.html"
imagelinks[5]="whatson.html"
imagelinks[6]="http://groundzero.forumotion.co.uk/"
var ry=Math.floor(Math.random()*myimages.length)
if (ry==0)
ry=1
document.write('<a href='+'"'+imagelinks[ry]+'"'+'><img src="'+myimages[ry]+'" border=0></a>')
}
random_imglink()
//-->
</script>
Thanks in advance =) Hi, my assignment is to create an online quiz with a random image generator. I have created my online quiz using 5 linking files and everything works great. My only problem is getting the images to show up on my quiz. All I get is the filename with a red X. Which the files do show up at random when I refresh, so I know that part is working. I just don't know what I am missing to get the actual picture to show up. Please take a look at my code below and see if I am missing anything. Please keep in mind this isn't the whole code as I have different linking files for this assignment. Thank you in advance. Code: <?xml version = "1.0" encoding = "utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<!-- Assignment CH10 Solution -->
<html xmlns = "http://www.w3.org/1999/xhtml">
<head>
<title>Online Quiz</title>
<script type = "text/JavaScript">
<!--
var rimg = 0;
var pictures = [ "logo", "logo2", "logo3", "logo1", "cover" ];
function randpics(){
var myQuiz = document.getElementById( "myQuiz" );
rimg = Math.floor( Math.random() * 5 );
myQuiz.logo.src = pictures[rimg]+'.gif';
myQuiz.logo.alt = rimg + ' : ' +pictures[rimg];
}
function checkAnswers() {
var myQuiz = document.getElementById( "myQuiz" );
if ( myQuiz.elements [ 0 ].checked )
alert ( "Congratulations, your answer is correct" );
else // if the answer is incorrect
alert ( "Your answer is incorrect. Please try again" );
} // end function checkAnswers
-->
</script>
</head>
<body onload="randpics()">
<form id = "myQuiz" onsubmit = "return checkAnswers()" action = "">
<img name="logo" src="logo.gif" alt="javascript logo"/>
<br />
<p>Which company first implemented the JavaScipt language?<br />
<input type = "radio" name = "radiobutton" value = "logo" />
<label>Netscape Communications Corp.</label>
<input type = "radio" name = "radiobutton" value = "logo2" />
<label>Microsoft Corp.</label>
<input type = "radio" name = "radiobutton" value = "logo3" />
<label>Sun Microsystems Corp.</label>
<input type = "radio" name = "radiobutton" value = "logo1" />
<label>Consortium of all the companies</label><br />
<input type = "submit" name = "submit" value = "Submit" />
<input type = "reset" name = "reset" value = "Reset" />
</p>
</form>
<p>
Click here to continue <a href = "page1.html" target="_self">Next Question</a>
</p>
</body>
</html>
I have 3 background images, and 1 is picked at random to be the background image of the body when loading the page.My code is below. Right now it's just white, can't get any pictures to load. I have checked the URLs and they are correct. Can someone help out? Here is my code in the header: Code: <script type="text/javascript">
function getBackground(){
var bgimg = new Array();
bgimg[0] = "background1";
bgimg[1] = "background2";
bgimg[2] = "background3";
var random = Math.floor(Math.random() * bgimg.length);
var imgurl = bgimg[random];
document.body.style.backgroundImage = 'url(' + imgurl + ')';
}
</script>
body: Code: <body onload="getBackground()"> Forgive me if this is in the wrong forum as I am unsure as to whether this should be PHP or Java, or a WP plugin. Basically I need to have a slideshow that picks images from a folder without the need to use arrays as there will be a large amount of images and I need to literally be able to drop images in a folder and they appear in a random order within the slideshow. As you can appreciate with a large amount of images, the code needs to call them as and when needed rather than loading them in at the beginning. I have been using Wordpress's nextgen gallery and have been hacking away at a few plugins etc, and the closest I have come is to make WP select a different post with gallery each time creating the illusion that the images are in a different order, however this isn't going to be ideal as its not truly random, and breeds duplicates. If I have to stay away from WP that's fine, uploading to an ftp would be ok. Hope someone can point me in the right direction! Thank You A Does anyone have a script, that can display a random image of the images I select?I'm going to use it for a type of captcha. I think this would be easier in javascript, so yes I am in the right section.
I have a tutorial I have to complete for my web class out of the "New Perspectives HTML, XHTML, and Dynamic HTML 4th edition book" (the tutorial I'm doing is number 10) and I can't figure out how to get the numbers to show up. Here is the code that is given to start out with. Code: <?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<!--
New Perspectives on HTML and XHTML 5th Edition
Tutorial 10
Review Assignment
Monroe Public Library
Author:
Date:
Filename: mpl2.htm
Supporting files: mpl2.jpg, mplstyles.css, random.js, 0.jpg - 9.jpg
-->
<title>Monroe Public Library</title>
<link href="mplstyles.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="pageContent">
<div id="head">
<img src="mpl.jpg" alt="Monroe Public Library" />
</div>
<div id="links">
<span>Quick Links</span>
<a href="#">Home Page</a>
<a href="#">Online Catalog</a>
<a href="#">Friends of MPL</a>
<a href="#">New Books and Other Good Reading</a>
<a href="#">Ohio Virtual Library</a>
<a href="#">Internet Public Library</a>
<a href="#">Services and Collection</a>
<a href="#">Adult Programs</a>
<a href="#">Teen Central</a>
<a href="#">Children's Room</a>
<a href="#">Computers at MPL</a>
<a href="#">Computer Rules and Procedures</a>
<a href="#">Staff Directory</a>
<a href="#">Library Records</a>
</div>
<div id="main">
<h2>Library Records</h2>
<p>To view the library records, enter your username and password.</p>
<table border="1" cellpadding="5" cellspacing="0">
<tr>
<th>Username</th>
<td><input size="20" /></td>
</tr>
<tr>
<th>Password</th>
<td><input type="password" size="20" /></td>
</tr>
<tr>
<td>As a final security check, enter the 5 numbers
you see displayed below.</td>
<td><input size="6" /></td>
</tr>
<tr>
<td colspan="2" class="center">
<input type="button" value="View Library Records" />
</td>
</tr>
<tr>
<td colspan="2" class="center">
</td>
</tr>
</table>
</div>
<address>
<b>Monroe Public Library</b>
580 Main Street, Monroe, OH 45050
<b>Phone</b>(513) 555-0211
<b>Fax</b>(513) 555-0241
</address>
</div>
</body>
</html>
Then these are the directions given in the book. 1. In the head section, just above the closing </head> tag, insert a script element that accesses the code in the random.js file. 2. add a second script element for the cod e that you'll add to the mpl2.htm file 3. Within the second script element, create a function named showImg(). The purpose of this function is to write an inline image tag into the current document. The function has no parameters. Add the following statements to the function: a. Add the following multiline comment to the start of the function, just below the opening showImg() function statement. The showImg() function displays a random image from the 0.jpg through 9.jpg files. The random image is designed to thwart hackers attempting to enter the library records database by requiring visual confirmation. b. Declare a variable named imgNumber equal to the value returned by the randomInteger() function. Use 9 as a value of the size parameter in the randomInteger() function. c. append the statement that creates the imgNumber variable with the following single-line comment: Return a random number from 0 to 9 d. inster a command that writes the text <img src='imgNumber.jpg' alt='' /> to the document, where imgNumber is the value of the imgNumber variable. 4. scroll down to the bottom of the file and locate the last table cell in the document. Within this empty table cell, insert a script element. 5. within the script element, call the showImg() function five times. YOu do not need to specify a parameter value. ___________________________ It's a lot of info but I just can't figure out how to get the images to show up, any help will be appreciated, I think I gave all the info needed. I have a form that used php to load a random image but now i would like to use javascript instead and am sure I nearly have it. I need to have a random number between 0 -5. Here is my code Code: <script type='text/javascript'>
var random = Math.floor( Math.rand() * 6);
document.write("<img src='images/'"+random+"'.jpg' alt='random image' /><input name='image' type='hidden' value='"+random+"' />")
</script>
Hey guys, Right now I have a random rotating slideshow with delay script implemented on a website. However I want to make ONE of the slides/images clickable to open up a PDF doc. Can you please let me know what I need to add/change in this to make it do what I need? I am not big on java so need some help. Thanks in advance! Code:
<script language="javascript">
/*
Random image slideshow- By Tyler Clarke (tyler@ihatecoffee.com)
For this script and more, visit http://www.javascriptkit.com
*/
var delay=12000 //set delay in miliseconds
var curindex=0
var randomimages=new Array()
randomimages[0]="images/simple_img_11.jpg"
randomimages[1]="images/simple_img_2.jpg"
randomimages[2]="images/simple_img_3.jpg"
randomimages[3]="images/simple_img_4.jpg"
randomimages[4]="images/simple_img_5.jpg"
randomimages[5]="images/simple_img_6.jpg"
randomimages[5]="images/simple_img_7.jpg"
var preload=new Array()
for (n=0;n<randomimages.length;n++)
{
preload[n]=new Image()
preload[n].src=randomimages[n]
}
document.write('<img name="defaultimage" src="'+randomimages[Math.floor(Math.random()*(randomimages.length))]+'">')
function rotateimage()
{
if (curindex==(tempindex=Math.floor(Math.random()*(randomimages.length)))){
curindex=curindex==0? 1 : curindex-1
}
else
curindex=tempindex
document.images.defaultimage.src=randomimages[curindex]
}
setInterval("rotateimage()",delay)
</script>
I placed this code in an external js file. Nothing happens. What do I need to change? Code: var randomPic = new Array();
randomPic[0] = "images/home/binoculars.jpg";
randomPic[1] = "images/home/conductor.jpg";
randomPic[2] = "images/home/dandelion.jpg";
randomPic[3] = "images/home/dog.jpg";
var whichPic = Math.floor((Math.random() * randomPic.length));
document.getElementById('tag').style.backgroundImage = randomPic[whichPic];
Hi guys, As a relative newcomer to Javascript this is killing me! Maybe someone can help... I am trying to put an image on the front page of my website that changes to one of two random images on mouseover. This part was easy, and has been done (I got the code from http://www.joemaller.com/javascript/randomroll.shtml). But what I am finding difficult is to make each image link to a different page. For example, if the user mouseovers the main image and sees the 'thumbs up' image, then clicks on it, they should be taken to the 'thumbs up' page. And if the user mouseovers the main image and sees the 'thumbs down' image, then clicks on it, they should be taken to the 'thumbs down' page. The site is he www.uninvitedcritic.com I think using 2 arrays is the way to go, but am not sure. Any help would be appreciated! |
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