JavaScript - Display An Image Using Javascript And Xml

Hello,

First, I'm new to the Javascript (and to this forum).

I am trying to use a Javascript to display a randomly selected image located in a folder of my site. I need to fit these images (which may have quite diverse dimensions) into a frame of 280x280 px.

Here is the code of the current script which does not currently work:
Code:

// JavaScript Document
<script language="JavaScript"><!--


function random_imglink(){
  var myimages=new Array()
  var imagetitle=new Array()
urlimage="http://www.mysite.fr/Images/RandomPictures/"


var i=0
//specify here the total number of random images which should be names 1.jpg, 2.jpg etc
nbrandompic=140
for (i=0;i<= nbrandompic;i++)
   {
  myimages[i]=urlimage + i +".jpg"
  imagetitle[i]=urlimage + i +".txt"
   }

  
//Randomly select an image

  var ry=Math.floor(Math.random()*myimages.length)

  if (ry==0)
     ry=1
  var reduction = 1
  var maxWidth=280
  var maxHeight=280

//Calculate the reduction that should be applied


         if(myimages[ry].width > maxWidth || image.height > maxHeight)
            reduction = Math.max(myimages[ry].width/maxWidth,myimages[ry].height/maxHeight)
 
 // New dimensions     
      iw = Math.round(myimages[ry].width / reduction)
      ih = Math.round(myimages[ry].height / reduction)
	 

//Display image	 
	 
    document.write('<a><img src="'myimages[ry]'" title="" border=0 width='+iw+' height='+ih+'></a>')
	

}

  random_imglink()
 

//-->
</script>

I am sure that you guys can help me solve this problem. Many thanks in advance!!

Antonino

Ok got a random image display and have tried to make it so once the image is displayed it is taken out of the array so it can not be viewed again untill there are no more elements in the array, problem is, it doesn't work.

Have been told about shuffle, but not very keen on that.

Can someone shed some light.

4 images, with accompaning links to be displayed 4 times, all unique.

Code:

Code:

<script language="JavaScript">
function random_imglink(){
  var myimages=new Array()
        myimages[0]="http://ads.factorymedia.com/www/images/fbm_oct10_300x80.gif"
        myimages[1]="http://ads.factorymedia.com/www/images/rbbyd_web_banner_300x80_animated.gif"
        myimages[2]="http://ads.factorymedia.com/www/images/2010_vex_300x80.jpg"
        myimages[3]="http://ads.factorymedia.com/www/images/image_3.gif"
  var imagelinks=new Array()
        imagelinks[0]="http://www.4downdistribution.com/"
        imagelinks[1]="http://www.redbull.co.uk/cs/Satellite/en_UK/Event/Red-Bull-Backyard-Digger-021242831811513"
        imagelinks[2]="http://verdebmx.com/"
        imagelinks[3]="http://www.zealbmx.com/"
  var count;
  for(count=0; count<myimages.length; count++) {
  if (myimages.length>0) {
     var ry=Math.floor(Math.random()*myimages.length)
     document.write('<div class="feed2"><a href='+'"'+imagelinks[ry]+'"'+'><img src="'+myimages[ry]+'" height=64px width=240px border=0></a></div>')
         if (ry>0 && ry<myimages.length-1) {
            myimages=concat(myimages. (0,ry-1),myimages.slice(ry+1,myimages.length-1));
            imagelinks=concat(imagelinks.slice(0,ry-1),imagelinks.slice(ry+1,imagelinks.length-1));
         }
         if (ry==0) {
            myimages=myimages.slice(1,myimages.length-1);
            imagelinks=imagelinks.slice(1,imagelinks.length-1);
         }
         if (ry==myimages.length-1) {
            myimages=myimages.slice(0,ry-1);
            imagelinks=imagelinks.slice(0,ry-1);
         }
  }
  }
}
</script>

<script language="JavaScript">
random_imglink();
</script>

an alternative way that also didn't work

Code:

function random_imglink(){
  var myimages=new Array();
        myimages[0]="http://ads.factorymedia.com/www/images/fbm_oct10_300x80.gif";
        myimages[1]="http://ads.factorymedia.com/www/images/rbbyd_web_banner_300x80_animated.gif";
        myimages[2]="http://ads.factorymedia.com/www/images/2010_vex_300x80.jpg";
        myimages[3]="http://ads.factorymedia.com/www/images/image_3.gif";
  var imagelinks=new Array();
        imagelinks[0]="http://www.4downdistribution.com/";
        imagelinks[1]="http://www.redbull.co.uk/cs/Satellite/en_UK/Event/Red-Bull-Backyard-Digger-021242831811513";
        imagelinks[2]="http://verdebmx.com/";
        imagelinks[3]="http://www.zealbmx.com/";

  var indexes = [0, 1, 2, 3];
  index.sort(function (){ reutrn 0.5 - Math.random(); });

  for(var count=0; count < index.length; count++) {
    var ry = indexes[count];
    document.write('<div class="feed2"><a href='+'"'+imagelinks[ry]+'"'+'><img src="'+myimages[ry]+'" height=64px width=240px border=0></a></div>');
  }
}

I need to display a set of photos in a limited space. After some online search, I haven't found a suitable Javascript code for the task. I would like to have something similar with the image slider on meetup.com. Basically, I would like to have an image index list and able to display an image in a large size.

Any recommendations?


Thanks in advance for your inputs.

I have search for about a week and still no luck.
I need to dynamically display mutliple images using javascript, no hardcoding. The images have different categories. For ex. bellTower01.jpg, bellTower02.jpg...and fountain01.jpg, fountain02.jpg....

-Use JavaScript to display several images and scroll through them
To display multiple thumbnails, arrange them into a small quantity (no more than 8 per page)
Provide pagination

I really really really need help. I have never done javascript before, so I'm still learning. I seriously checked out many threads and links but nothing works or is what I want. I hope someone can help me out and hopefully also allow me to become better at coding this kind of stuff.

I am not allowed to code in php for this project. I can only use javascript to display the images. Also, I don't really need anything fancy, like slideshows or rotations, I just the image to appear when I select that specific category. I want to get the images from my folder/directory.

Right now, I have it working as it just being hardcoded.
Below is my code for my galleries page:

<?php

//creates a session..initializes session data
session_start ();

echo("<?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" xml:lang="en" lang="en">

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Scenes of Purdue</title>
<!-- Styling of the Webpage -->
<link rel="stylesheet" type="text/css" href="css/style.css"/>

<script src="js/prototype.js" type="text/javascript"></script>
<script src="js/scriptaculous.js?load=effects,builder" type="text/javascript"></script>
<script src="js/lightbox.js" type="text/javascript"></script>

<link rel="stylesheet" type="text/css" href="css/lightbox.css"/>

</head>

<body>
<div id="shadowContainer">
<div id="mainContainer">
<div id="mainHeader"></div>
<div id="topNav">
<ul>

<li><a href="index.php">Home</a></li>
<li><a href="galleries.php">Galleries</a></li>
</ul>
</div><div id="content">
<br />
<div class="clearfix"><h1>Select a Category to View</h1>
<br />

<div class="paginationBar" id="paginationBar">
<select id="catDropDown" onchange="javascript:getCategory()">
<option value="-" selected="selected">Select a Category</option>
<option value="bellTower">Bell Tower</option>
<option value="fountain">Fountain</option>
</select>
</div>
<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
<br /><br />

<ul id="pagination">
</ul>

<div id="r1c1"></div>
<div id="r1c2"></div>
<div id="r1c3"></div>

<div id="r2c1"></div>
<div id="r2c2"></div>
<div id="r2c3"></div>


<script type="text/javascript"><!--
var bellTowerArray = new Array();

bellTowerArray[0] = "bellTower01.jpg";
bellTowerArray[1] = "bellTower02.jpg";
bellTowerArray[2] = "bellTower03.jpg";
bellTowerArray[3] = "bellTower04.jpg";
bellTowerArray[4] = "bellTower05.jpg";
bellTowerArray[5] = "bellTower06.jpg";
bellTowerArray[6] = "bellTower07.jpg";
bellTowerArray[7] = "bellTower08.jpg";
bellTowerArray[8] = "bellTower09.jpg";
bellTowerArray[9] = "bellTower10.jpg";
bellTowerArray[10] = "bellTower11.jpg";
bellTowerArray[11] = "bellTower12.jpg";
bellTowerArray[12] = "bellTower13.jpg";
bellTowerArray[13] = "bellTower14.jpg";
bellTowerArray[14] = "bellTower15.jpg";
bellTowerArray[15] = "bellTower16.jpg";

var fountainArray = new Array();

fountainArray[0] = "fountain01.jpg";
fountainArray[1] = "fountain02.jpg";
fountainArray[2] = "fountain03.jpg";
fountainArray[3] = "fountain04.jpg";
fountainArray[4] = "fountain05.jpg";
fountainArray[5] = "fountain06.jpg";
fountainArray[6] = "fountain07.jpg";
fountainArray[7] = "fountain08.jpg";
fountainArray[8] = "fountain09.jpg";
fountainArray[9] = "fountain10.jpg";
fountainArray[10] = "fountain11.jpg";
fountainArray[11] = "fountain12.jpg";
fountainArray[12] = "fountain13.jpg";
fountainArray[13] = "fountain14.jpg";
fountainArray[14] = "fountain15.jpg";
fountainArray[15] = "fountain16.jpg";
fountainArray[16] = "fountain17.jpg";
fountainArray[17] = "fountain18.jpg";

var currentArray = new Array();

function getCategory()
{
if(document.getElementById("catDropDown").selectedIndex == 1)
{
currentArray = bellTowerArray;
}
else if(document.getElementById("catDropDown").selectedIndex == 2)
{
currentArray = fountainArray;
}//if/else
if(document.getElementById("catDropDown").selectedIndex > 0)
{
displayImages(0);
doPagination();
}
}

function displayImages(start)
{
//r1c1
if(!(start > currentArray.length-1))
document.getElementById("r1c1").innerHTML = "<a id=\"r1c1_a\" href=\"images/regular/" + currentArray[start] + "\" rel=\"lightbox\" title=\"This is the static description\"><img src=\"images/th/thumb_" + currentArray[start] + "\" id=\"r1c1_img\" width=\"150\" height=\"150\" alt=\"This is the static description in alt\" title=\"Static title description\" /><"+"/a>";
else
document.getElementById("r1c1").innerHTML = "";

//r1c2
if(!(start+1 > currentArray.length-1))
document.getElementById("r1c2").innerHTML = "<a id=\"r1c2_a\" href=\"images/regular/" + currentArray[start+1] + "\" rel=\"lightbox\" title=\"This is the static description\"><img src=\"images/th/thumb_" + currentArray[start+1] + "\" id=\"r1c2_img\" width=\"150\" height=\"150\" alt=\"This is the static description in alt\" title=\"Static title description\" /><"+"/a>";
else
document.getElementById("r1c2").innerHTML = "";

//r1c3
if(!(start+2 > currentArray.length-1))
document.getElementById("r1c3").innerHTML = "<a id=\"r1c3_a\" href=\"images/regular/" + currentArray[start+2] + "\" rel=\"lightbox\" title=\"This is the static description\"><img src=\"images/th/thumb_" + currentArray[start+2] + "\" id=\"r1c3_img\" width=\"150\" height=\"150\" alt=\"This is the static description in alt\" title=\"Static title description\" /><"+"/a>";
else
document.getElementById("r1c3").innerHTML = "";

//r2c1
if(!(start+3 > currentArray.length-1))
document.getElementById("r2c1").innerHTML = "<a id=\"r2c1_a\" href=\"images/regular/" + currentArray[start+3] + "\" rel=\"lightbox\" title=\"This is the static description\"><img src=\"images/th/thumb_" + currentArray[start+3] + "\" id=\"r2c1_img\" width=\"150\" height=\"150\" alt=\"This is the static description in alt\" title=\"Static title description\" /><"+"/a>";
else
document.getElementById("r2c1").innerHTML = "";

//r2c2
if(!(start+4 > currentArray.length-1))
document.getElementById("r2c2").innerHTML = "<a id=\"r2c2_a\" href=\"images/regular/" + currentArray[start+4] + "\" rel=\"lightbox\" title=\"This is the static description\"><img src=\"images/th/thumb_" + currentArray[start+4] + "\" id=\"r2c2_img\" width=\"150\" height=\"150\" alt=\"This is the static description in alt\" title=\"Static title description\" /><"+"/a>";
else
document.getElementById("r2c2").innerHTML = "";

//r2c3
if(!(start+5 > currentArray.length-1))
document.getElementById("r2c3").innerHTML = "<a id=\"r2c3_a\" href=\"images/regular/" + currentArray[start+5] + "\" rel=\"lightbox\" title=\"This is the static description\"><img src=\"images/th/thumb_" + currentArray[start+5] + "\" id=\"r2c3_img\" width=\"150\" height=\"150\" alt=\"This is the static description in alt\" title=\"Static title description\" /><"+"/a>";
else
document.getElementById("r2c3").innerHTML = "";
}

function doPagination()
{
var numpages = (currentArray.length / 6) +1;
var numleft = currentArray.length % 6;

document.getElementById("pagination").innerHTML = "";

for(i=0; i<numpages-1; i++)
{
document.getElementById("pagination").innerHTML += "<span onclick='displayImages("+ i*6 +")'>"+ (i+1) + "<"+"/span> ";
}

if(numpages <=1)
{
document.getElementById("pagination").innerHTML = "";
}
}

document.getElementById("catDropDown").selectedIndex = 0;

-->
</script>

</div>
</div>
</div>
<div id="footer"><a href="readme.php">Readme</a><br />
<div class="clearfix">
<div style="float: left"><a href="adminLogin.php" title="Admin Login" class="adminLoginAjax">Admin login</a></div>

</div>
</div>
</div>

</div>

</body>
</html>

Hi there,

I found this thread on the forum its from a few years back but the code works, but I can't seem to get the image that appears as you rollover the button to display in the correct place. I'm not sure if its because I'm using tables within tables? Should I recode in divs?

Any help is greatly appreciated!!

http://www.codingforums.com/archive/...p/t-95847.html