JavaScript - Javascript Coding With Array

I am an amateur web designer and could really use your help.

I'm working on a test page right now (http://www.piscatawayacres.com/test.html). I'm trying to have 3 effects going on at the same time, but due to my inexperience with Javascript (I, in fact, copied and pasted most of it), I can't get them to work. To complicate things, my test page works to a certain extent, but when I copy and paste the coding to other pages (like alpacas.html, sheep.html, goats.html, etc.) it ceases to work. I have no idea why it does this.

The 3 effects I want to have work:

1. Javascript rollover buttons.

2. A Javascript slideshow--the square picture above the buttons should be changing.

3. I want the image and the buttons to follow the user down the page as they scroll. For some reason though, the buttons (on the couple of pages they work at all) cease to work except at the very top of the page or the very bottom, but not in between.

I've been struggling with this obstacle for a long time, so I would greatly appreciate any help someone could give.

Thanks so much for your help.

PAC

P.S. I want to emphasize that some of the coding works on the test.html page, but WON'T work when I copy and paste it elsewhere. I can only assume it is because of conflicts with the coding. I know my coding is not flawless....

Hi Experts,

I'm new to this forum and need your help regarding javascript.

I am creating a roster for my team with a web interface.
Ex: A picture is attached for your reference

The time is in IST (+5:30)

I have created a drp down list which has PST, EST,CST time. I need to write a code so that whenever I select any of these times (PST,EST,CST, MST, IST) , it should automatically update the table. Please help.

Regards,
Indy

Hi, I'm fairly new to javascript & am trying to learn it using best methods. I have been using various books & some video tutorials, such as lynda.com. I've noticed when I do google searches for example tutorials, 9 times out 10, the javascript has been coded into the html file. As a newbie I find it takes a very long time to redo the coding into the separate .js file. And if the coding is relatively complex (and most of it appears that way to someone new to this) I can't get it too work using a separate file for the javascript. I wanted to ask anyone very familiar with this, their suggestions regarding good places for tutorials where the .js file is separated. Apparently there are advantages to having it separate and it's considered best practices from what I've come to understand. Also most of the results from google searches pulls up out-dated coding and/or tutorials that suggest you should already understand what is being referred too. I'm trying to avoid learning it the wrong way. I'm willing to put in the effort, however I don't want to pick up bad habits. Any help is very appreciated. If this was not as clear as I intended it to be, please ask any specifics and I'll try my best to answer.
-Todd

Okay, I am relatively new to Java and am going to be taking a class on it next fall. For now though, I am trying to code for a client I am currently working with and am hopelessly lost.

The client I am working with has an ecommerce site with Network Solutions which uses aspx. It allows you to code html and link to css, java (pretty much anything except php). The problem I am having is that they currently have their product descriptions coded in div tags:

<div id='alternatebg'>
<div id='detailsgreybox'><div id='alternatename'><p>Alternate Name</p></div></div>
<div id='pd2'><p>Not Available</p></div>
</div>

<div id='usebg'>
<div id='detailsgreybox'><div id='use'><p>Use</p></div></div>
<div id='pd3'><p>Chemicals</p></div>
</div>

What they want to happen is for the sections that have 'Not Available' as the answer to not show up on the live page. I have tried to use <ns:if condition="..."> but do not know how to call for it to see if the div says 'Not Available'.

Any help is greatly appreciated as I can not move forward until I can figure this out.

I'm working on a new custom theme for my WordPress based site, and up until now I've been using the following PHP code to color code links based on whether the post was in the "Wii" category, "Xbox" category, or "PlayStation" category:

PHP Code:
<li>
    <?php if (in_category(3) ) { ?>
    <a style="color:#990000;" href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a>
    <? }elseif (in_category(4) ) { ?>
    <a style="color:#669900;" href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a>
    <? }elseif (in_category(7) ) { ?>
    <a style="color:#0099cc;" href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a>
    <? } else { ?>
    <a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a>
    <? } ?>
</li>

Thing is, I've now installed a plugin called "Recently Popular" that logs all visits and can output which posts were viewed the most in the past X days/weeks/months/etc. and the author has it set up to only allow HTML formatting via this line:

PHP Code:
<?php get_recently_popular(1, 'WEEK', 5, 0, 0, '<a href="%post_url%" rel="bookmark" title="%post_title%">%post_title%</a>'); ?>

I've tried sticking PHP in the line, but it only takes HTML. I've tried sticking one of these lines in each of the conditional statements above, but realized that this line outputs the entire "Recently Popular" list, not just one item - so everything would end up being the same color still. I contacted the plugin author, who said that without hardcoding there's no way to get around this via the plugin, but that outputting it normally and running it through JavaScript might give me a way to apply CSS styling to it after it's been rendered.

I'm not experienced with JavaScript, unfortunately... does anyone know how I can do this?

Hi,

I'm still in the early stages of learning Javascript so I'm not sure how (or if it's possible) to do this. I know HTML, CSS, etc... just not too familiar with Javascript. Here's the deal.... I run a website that features a chat room written in Perl for CGI. The chat room will automatically email a user their password if it's forgotten but there is one issue.....it does not have the "Forgot Password?" link. To achieve the Lost Password page, the user must enter an invalid password FIRST on the login screen, otherwise they cannot get to that option and are often requesting assistance.

What I had in mind was an easier way for the user to get their password since new novice members are not sure how to get to the lost password page. I'm not trying to edit the Perl code for the chat, but I wanted to build a "Forgot Password?" page using a Javascript code that will automatically take their username from the "username" login field and direct them to the lost password page which would be "chat2.cgi?action=send_pwd&name=..."

I'm sorry if this is confusing, I'm not sure that I am explaining this right. When the user enters an invalid password, it takes them to the lost password page which contains a link "lost password" and will automatically email them their login details when clicked on. When they click that link, the URL contains the string "chat2.cgi?action=send_pwd&name=username"

What I would like to do is put a link on the login page (like most normal chat rooms have) that says "Forgot Password?". When clicked on, I want it to take them to a page where all they have to do is enter their username in a form and click Submit, then have a Javascript code automatically extract their username from that field and insert their username automatically to the end of that URL (chat2.cgi?action=send_pwd&name=...) where ... would be the name extracted from that form field. This would result in the browser taking them to that URL which would trigger the chat to automatically email the password. Can I do this with Javascript?? If so, any help would be greatly appreciated!

Hello all out there I am going to post this in 2 separate views.

I am working on an assignment from this link

http://books.google.ca/books?id=aG_T2aD ... MonthCell()&source=bl&ots=EJXyGF-tbI&sig=vbgqgua2uSaL6DWp0Rx_BYoZ0z8&hl=en&ei=9C7gTLmiAYaXnAeywLWRDw&sa=X&oi=book_result&ct=result&re snum=1&ved=0CBcQ6AEwAA#v=onepage&q=writeMonthCell()&f=false

if u scroll down to case 1
is what I am working on

included in the case are 2 other files as to the one i have to work on

i used all the proper steps and instructions and i think I have the correcting coding for my form

however my program still does not work

here is the exact code i am using
let me know if anyone sees any errors, as I am convinced i have it correct?

Here is my code:

<html>
<head>
<!--
New Perspectives on JavaScript
Tutorial 3
Case Problem 1

The Lighthouse
Author: John Res
Date: November 14 2010

Filename: clist.htm
Supporting files: lhouse.css, list.js, logo.jpg

-->
<title>The Lighthouse</title>
<link href="lhouse.css" rel="stylesheet" type="text/css" />
<script type"text/javascript" src"list.js"></script>
<script type="text/javascript">
function amountTotal() { // return sum of values to amount array
total=0;
for(var i=0; i<amount.length; i++) { // set variable to 0
total+=amount[i];
}
return total;
}
</script>
</head>

<body>

<div id="title">
<img src="logo.jpg" alt="The Lighthouse" />
The Lighthouse<br />
543 Oak Street<br />
Delphi, KY &nbsp;&nbsp;89011<br/>
(542) 555-7511
</div>

<div id="data_list">
<script type=”text/javascript”> // set up variables of rows and cellspaces
document.write(“<table border=’1′ rules=’rows’ cellspacing=’0′>”);
document.write(“<tr><th>Date</th><th>Amount</th><th>First Name</th>”);
document.write(“<th>Last Name</th><th>Address</th></tr>”);

for (i=0; i< amount.length; i++) { // create a loop in counter of variable starting at 0 and increase of 1 increments
if (i%2==0) document.write(“<tr>”);
else document.write(“<tr class=’yellowrow’>”); // have every row with a yellow background use a loop

document.write(“<td>”+date[i]+”</td>”);
document.write(“<td class=’amt’>”+amount[i]+”</td>”); // have values of the dates
document.write(“<td>”+firstName[i]+”</td>”);
document.write(“<td>”+lastName[i]+”</td>”);
document.write(“<td>”);
document.write(street[i]+”<br />”);
document.write(city[i]+”, “+state[i]+” “+zip[i]); // zip arrays for address
document.write(“</td>”);
document.write(“</tr>”);
}
document.write(“</table>”);
</script>

</div>

<div id="totals">
<script type=”text/javascript”> // use script elements in HTML
document.write(“<table border=’1′ cellspacing=’1′>”);
document.write(“<tr><th id=’sumTitle’ colspan=’2′>Summary</th></tr>”);
document.write(“<tr><th>Contributors</th>”);
document.write(“<td>”+amount.length+”</td></tr>”);
document.write(“<tr><th>Amount</th>”);
document.write(“<td>$”+amountTotal()+”</td></tr>”);
document.write(“</table>”);
</script>

</div>

</body>
</html>

thanks everyone

Hello, I'm new to this forum. I want to improve my ability to write JavaScript and am looking for a friendly place to find some constructive criticism and suggestions on my code.

This script does not have any practical use (that I can think of); it calculates prime numbers. It is just an exercise. I am looking for suggestions on all aspects from the CSS/aesthetics to the HTML and of course the JavaScript.

I posted the script here.

One definite thing that bugs me is the cursor is not in the text field when the page loads. Also it would be better if the user had the option of hitting the return key in addition to the submit button. Suggestions appreciated.

Code:

<!DOCTYPE html>
<html lang="en">
<head>

<title>Prime Number Calculator</title>
	<style type="text/css">
		form{
			width: 200px;
			border: solid 3px blue;
			border-style: double;
			padding:5px;
			text-align:center;
			background-color:#eee;
		}
		#title{
		
			text-align:center;
			border: solid 1px blue;
			background-color:#fff;
			margin:5px;
			padding:0px;
		}
	</style>
	<script src="jquery.js" type="text/javascript"></script>
	<script type="text/javascript">
		var candidates = new Array();
		function calculatePrimes(form){
  			var max = form.input.value; 
			
			//Check to make sure input is a number
			if(isNaN(max)){
				alert("Dude, you must enter a number!");
			}
			
			for(i=2; i<=max; i++){candidates[i]=i;}
			
			var i=2;
			for(i=2; i<Math.sqrt(max); i++){
				if (candidates[i]!=0){
					var j=i*i;
					while(j<max){
						candidates[j] = 0;
						j=j+i;
					}
				}
			}
			
			//Pull the primes out of the candidates
			i=2;
			var primesOut = "";
			for(i=2; i<max; i++){
				if(candidates[i]!= 0){
					primesOut = primesOut + ((i>2)?", " : "" ) + candidates[i];
				}
			}
			form.output.value = primesOut;
		}
	</script>
<head>
<body>
	<form>
		<h2 id="title">Prime-Number Calculator</h1>
		Check up to:<input type="text" name="input" size="5" value="100" \> <br />
		<textarea rows="5" cols="20" name="output"></textarea>
		<input  name="calc" value="Find!" type=button onClick="calculatePrimes(this.form)">
	</form>
</body>
</html>

Hi

I have been trying to create a form using Django for a very long time but have not been able to get it to look the way I want. Someone suggested to me that I should use Javascript (Jquery) to do this.

Here's what I want to do. For the form I want, there are certain statuses at the bottom, like "Done", "Incomplete" and etc. When the form is filled in, the person will click on one of these statuses. What I want this button to do is to save the page/form and also to generate a few new links relating to the status selected.

For example, if the person selects "Done" this should save the form and generate two new buttons. One that says "Close" which would take you to the home page, and one that says "Continue" which would take you to the next form.

My problem is that I'm new to Django and have no experience with Javascript. So if anyone could help or give me hints that would be greatly appreciated.

I am working on a page where the user will select a location from a dynamically generated dropdown list.

I was able to create the php multidimensional array (tested and working) from a MySql database using the users information at login, but I'm having problems converting it to a javascript multidimensional array. I need to be able to access variables that I can pass to a number of text fields within an html form.

For instance, if a user belongs to a company with multiple addresses, I need to be able to let them select the address they need to prepopulate specific text fields.

php array creation:
Code:

if ($row_locations) 
{ 
	while ($row_locations = mysql_fetch_assoc($locations))  
	{ 
		$mail[$row_locations['comp_id']]=array('mailto'=>$row_locations['mailto'], 'madd'=>$row_locations['madd'], 'madd2'=>$row_locations['madd2'], 'mcity'=>$row_locations['mcity'], 'mstate'=>$row_locations['mstate'], 'mzip'=>$row_locations['mzip'], 'billto'=>$row_locations['billto'], 'badd'=>$row_locations['badd'], 'badd2'=>$row_locations['badd2'], 'bcity'=>$row_locations['bcity'], 'bstate'=>$row_locations['bstate'], 'bzip'=>$row_locations['bzip']);
	} 
}

javascript function - this should create the array and send variables to text fields.
Code:

function updateAddress() {
var mail = $.parseJSON(<?php print json_encode(json_encode($mail)); ?>);
{
if (comp_id in mail) {
document.getElementById('mailto').value=mail.comp_id.mailto.value;
document.getElementById('madd').value=mail.comp_id.madd.value;
document.getElementById('madd2').value=mail.comp_id.madd2.value;
document.getElementById('mcity').value=mail.comp_id.mcity.value;
document.getElementById('mstate').value=mail.comp_id.mstate.value;
document.getElementById('mzip').value=mail.comp_id.mzip.value;
} else {
document.getElementById('mailto').value='';
document.getElementById('madd').value='';
document.getElementById('madd2').value='';
document.getElementById('mcity').value='';
document.getElementById('mstate').value='';
document.getElementById('mzip').value='';
}
}
}

Where is this breaking?
Thanks in advance.

Hi,
i can't find the mistake in my little script hope someone can help me.

PHP Code:
<?php

/* -------------------- read thumbfolder -------------------- */
    
    function isRdyPfD($filename){ 

        if ($filename == '.' || $filename == '..') {
        // To-Top-Dir
        return false;
    }
    
    $ext = explode(".",$filename);
    $ext = $ext[sizeof($ext) - 1];
    $allowedformats = array (
        'jpg', 
        'png',
        'jpeg',
        'gif'
    );
    
    return in_array($ext,$allowedformats);
    } 

    function getPicsfromDir($dir){ 
    /* array with names of the pictures in  $dir */

        if (is_dir($dir)) {
        if ($dh = opendir($dir)) {
                $filearray = array();
        while (($file = readdir($dh)) !== false) {
            if (isRdyPfD($file) === true) {
                $filearray[] = $file;
            }
        }
        closedir($dh);
                return $filearray;
        }
    }
    else {
        return false;
    }
    } // End Function


    $thumbs = getPicsfromDir("./images/thumbs/");
    

/* -------------------- thumbfolder  -------------------- */    
    echo "<div id='thumbslider'>\n";
    echo "<ul id='thumbs'>\n";
    for($i = 0; $i < count($thumbs); $i++){
            echo "<li><img src=\"./images/thumbs/$thumbs[$i]\" onclick=\"thumbClick($i)\"  /></li>\n";
            
    }
    echo "</ul>\n";
    echo "</div>\n";
    




/* -------------------- big size images folder -------------------- */
    $bigSizeImages = getPicsfromDir("./images/");
    //print_r($bigSizeImages);
    
    $jsValue = '';
    for ($j=0; $j < count($bigSizeImages); $j++){
                $jsValue = $jsValue . $bigSizeImages[$j];
                if ($j < (count($bigSizeImages)-1)) {
                        $jsValue = $jsValue . ",";
                }
   }
    
?> 


<script type="text/javascript">
        images = new Array(<?php echo $jsValue ?>);
        
    

    
    
    function thumbClick(pos){
            
            //alert(pos);
            alert(images[pos]);
            
    }

</script>

I can't trace the images array values?
thanks for a feedback!!!

Hi,
Here is a working code to copy 2d php array to 2d javascript array.


Code:

<html>

<head>

<?php

for($i = 0; $i < 3; $i++)
 {
   for($j = 0; $j < 2; $j++)
                   {$quest[$i][$j] = $i*10+$j;}
 }


?>



<script type="text/javascript">


var questions = new Array(3);

  for (var i = 0; i < 3; i++)
  {
   questions[i] = new Array(2);
  }

questions[0] = ["<?php echo join("\", \"", $quest[0]); ?>"];
questions[1] = ["<?php echo join("\", \"", $quest[1]); ?>"];
questions[2] = ["<?php echo join("\", \"", $quest[2]); ?>"];



document.write(questions[0][0] + "<br />");
document.write(questions[0][1] + "<br />");
document.write(questions[1][0] + "<br />");
document.write(questions[1][1] + "<br />");
document.write(questions[2][0] + "<br />");
document.write(questions[2][1] + "<br />");


</script>




</head>

</html>

Now,here's the thing.Notice these lines in the code


questions[0] = ["<?php echo join("\", \"", $quest[0]); ?>"];
questions[1] = ["<?php echo join("\", \"", $quest[1]); ?>"];
questions[2] = ["<?php echo join("\", \"", $quest[2]); ?>"];

I would like to put these lines in a loop,something like

for (var i = 0; i < 3; i++)
{
questions[i] = ["<?php echo join("\", \"", $quest[i]); ?>"];
}

But even after a lot of efforts I am unable to do so,what am I doing wrong?Thanks

Hi,
In a nutshell,can anyone tell me how to copy a 2d (two dimensional ,2 dimensional) php array to 2d javascript array?I would be obliged if anyone can provide me a method of doing that

OR
I have written a code to copy a 2d php array to a 2d javascript array.It is working but there is one problem(please see the following).Can anyone tell me what I am doing wrong here?


The 2d php array is $quest[100][6] and the 2d javascript array is questions[100][6] . I have written the javascript code inside the <?php....?> itself using echo "<script language="javascript" type="text/javascript">.......</script>;




Now ,inside the javascript,when I try to copy the 2d php array to the 2d javascript array using the following method it works

questions[0]= ["<?php echo join("\", \"", $quest[0]); ?>"];
questions[1]= ["<?php echo join("\", \"", $quest[1]); ?>"]; ... and so on


However, if I try to do the same using the following method it does not work
for (var i= 0; i <= 99; i++)
{ questions[i]= ["<?php echo join("\", \"", $quest[i]); ?>"]; }

Why is that?What mistake am I making?Any help will be deeply appreciated.Thanks



-----------------------------THE CODE------------------------------------
<?php


Access database and store result of mysq_query in $result.......
$result = mysql_query($query);


for ( $count = 0; $count <= 99; $count++)
{
$quest[$count]=mysql_fetch_array($result,MYSQL_NUM);;

}

echo "<script language="javascript" type="text/javascript">

var questions = new Array(100);
for (var i = 0; i <100; i++)
{ questions[i] = new Array(6); }



/*The following method of copying 2d php array to 2d javascript array is not working
for ( var i = 0; i <= 99; i++)
{ questions[i]= ["<?php echo join("\", \"", $quest[i]); ?>"]; }
*/

/*The following method ,however,is working*/
questions[0]= ["<?php echo join("\", \"", $quest[0]); ?>"];
questions[1] = ["<?php echo join("\", \"",$quest[1]); ?>"];
questions[2] = ["<?php echo join("\", \"",$quest[2]); ?>"]; ....and so on




</script>";


mysql_close($db_server);

?>

Hello I'm have some javascript objects with arrays that should be transferred as php array.
Its posted by ajax httpRequest.

How can I return php array, from the javascript?


JS Code:

['asd1', 'asd2', 'asd3']

via Ajax

=> PHP PHP Code:
array('asd1', 'asd2', 'asd3'); 

Hello hello,

I have a javascript array to load a different picture each time a page loads up. The code is as follows:



<script type="text/javascript">
var imageArray = new Array();

imageArray[0] = "images/animation9.gif";
imageArray[1] = "images/Title2.gif";
imageArray[2] = "images/animation4.gif";

function doIt()
{
var rand = Math.floor(Math.random()*3);
var imgPath = "<img src='"+imageArray[rand]+"' alt='Welcome' border='0' align='absmiddle' />";
document.getElementById("image").innerHTML = imgPath;
}
</script>




So...it works fine with .gifs, but how would I get it to work with .swf movies too?

I've tried just putting the .swf in there e.g. ...

'imageArray[2] = "images/animation6.swf";

But that doesn't seem to work.

Any ideas?

Thank-you SO much in advance.