JavaScript - Why Am I Learning Javascript?

Hi, as the title states, I'm trying to learn some basic javascript, more particularly, jQuery.

I HATE having to "allow" active content to run on my IE browser. Is there a way to allow active content permanantly? Instead of having to click allow each time I refresh or reload my test pages?

Also, IE keeps freezing or crashing when I run pages with scripts on them. Is this just my browser? or something to do with the active content permissions?

Trying to google my questions, but no luck yet.

I am currently trying to learn the <form> object.

Now I have done some things within <form> like setting up text fields with submit buttons, etc..

But now on this part of the course it is showing properties I think, within the decleration of the <form> such as shown below

Code:

<FORM METHOD="POST" ACTION="/cgi-bin/correct.pl" onSubmit="return false;">

Could someone explain to me what that ACTION="/cgi-bin/corrct.pl" is for along with the onSubmit="return false;" ??

I'd like an explanation of the properties of <form> if you could please.

Im trying to learn how to code but i'm not getting it can anyone help me with java? <3

-ButterFly<3

Hi all



How should I be doing this?

I am trying to 'learn' how to set more than one value in a cookie.
Then get them back out. Obviously i'm on the wrong track.

These are my 'test' values:
Code:

var val = document.getElementById("yrname").value; //peterPan
var val1 = document.getElementById("password").value; //tinkerBell
//send to create cookie factory
createCookie("inbed", val + '~' + val1, "1");

Then from url : alert(cookie)

I get:
inbed=peterPan~tinkerBell

So far so good (well what I expected anyway)

now using this function I completely lose tinkerBell.
she was inbed with peterPan.


Code:

function readCookie(name) //name is passed in
{  
    var cookies = document.cookie.split(/~/g); //split at ~
		//alert(cookies);
		//results:
		//cookies: inbed=peterPan,tinkerBell
		//cookies[0]: mytestcookie=peterPan
		// cookies[1]: tinkerBell //the last sighting 		
    var arg = name + "=";  
    for ( var c = 0; c < cookies.length; ++c ) //iterate through the cookie
    {			
        var ck = cookies[c]; //cookie array into an var
	//alert(ck); //inbed=peterPan (no tinkerBell -- not what I expected!
        
	 //basically i'm now lost!!!
	//I don't get what happened to tinkerBell .
				
	if ( ck.indexOf(arg) == 0 ) 
//if the array at the index of arg 'name=' equal to position 0.
        {
            var temp = ck.split(/=/); //split the  cookie array at =
	//alert(temp); //inbed=peterPan
	//alert(temp[0]); //inbed
	//alert(temp[1]); //peterPan
							,
            return decodeURI(temp[1]) //bring back array 1
        }
    }
    return "";
}

help on how I should
be doing this
much appreciated

LT

Ok guys, i am starting from he

http://www.javascriptkit.com/javatutors/primer5.shtml

Code:

<script type="text/javascript">
var example
example=document.lastModified
document.write("This page was last modified: "+example)
</script>

I am having trouble understanding an actual situation which may require the above coding, can anyone give an example please?

Hi there!

I'm obviously new to the forums here and don't really know if this is the right place to get help. I've made a small game in an HTA file using JavaScript and HTML (don't laugh, this was a serious learning project for me). The problem I'm having is that, after running the game for a while (having played, like to level 10 say), the HTA begins to slow down HORRIBLY. By level 10, it's almost unplayable... it takes like 3 seconds to register a button click.

My messy code is below (yes, it's the entire game... I know it's huge). I don't really care that the math is horrible in calculating hit points and damage and whatnot. All I want to know is, why the hell does this slow down?

Any help would be greatly appreciated.

(obviously, rename the text file to .hta or .html to load it)

I have no js experience or coding experience of any kind other than the last few hours of reading a book called 'object-oriented javascript', and all was well until loops.

firstly, this is how he teaches the while loop...

var i = 0;
while (i <10)
{i++;}

which results in 9

we move on to for loops...

var res ='';
for( var i = 0; i <10; i++)
{res += 'sometext' ;}

which repeats,
but I'd like to be able to make that into a sequence of numbers... 123456789.

how do I do that? thanks.

Hello! I am trying to find a script that allows you to open multiple browser tabs and then close each of those tabs, either one by one or all at once.

Does anyone know how to do this please?

Thanks so much for your help.

I want to have another go at Javascript. I have several books on the subject but I find that my eyesight is a major problem. Therefore I want to try an on-line solution, preferably free.

I have Googled, but there are so many that I am almost dizzy with the choices.

Perhaps someone could recommend one. Not too fussy visually. My knowledge is VERY basic.

Frank

Does anyone know how to make URL links that use Javascript still work when
users have Javascript disabled on their browser?

The only reason I'm using JS on a URL is because my link opens a PDF file, and I'm forcing it not to cache so users have the latest version.

I tried the <script><noscript> tags, but I'm not sure if I'm using it
correctly, as my URL completely disappears.

Below is my HTML/Javascript code:

<p class="download">
<script type="text/javascript">document.write("<span
style=\"text-decoration: underline;\"><a href=\"javascript:void(0);\"
onclick=\"window.open(
'http://www.webchild.com.au/mediakit/Direct_Media_Kit_Web.pdf?nocache='+
Math.floor( Math.random()*11 ) );\" >The Child Magazines Media
Kit</a></span> (PDF 1 MB) ");</script>
<noscript><span style="text-decoration: underline;"><a
href="http://www.webchild.com.au/mediakit/Direct_Media_Kit_Web.pdf"
>The Child Magazines Media Kit</a></span> (PDF 1 MB)</noscript>
</p>


Thanks for any help,
Michael

Hi Guys,
I am new at JavaScript and start to do some tutorials.What I am trying to do here is prompting user to input a name and if the name was valid the page(document) will display with all objects like the button.But if user enter a wrong name then the button will be disabled!
I create the following code but it did not work

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>New Web Project</title>
<script language="JavaScript" type="">
function changeColor(){
document.bgColor = "Gray";
}
</script>
</head>
<body>
<script language="JavaScript" type="text/javascript">
var person = "";
person = prompt('What is Your Name:');
if (person == "Foo") {
document.write("<h1 />Welcome " + person);
document.bgColor = "Yellow";
}
else {
document.write("<h1 />Access Denied!!!!");
document.bgColor = "Red";
document.getElementById("gree").disabled = true;
}
</script>

<div>
<p/><input id="gree" type="button" value="Gray " onClick="changeColor();">
</div>
</body>
</html>

as you can see I used the:
document.getElementById("gree").disabled = true;
but it did not work , could you please give an idea how I can solve this problem?
Thanks

Hi,

I have the following code snippet:
test.html
======
<script language="javascript" type="text/javascript">
var testVariable = "test";
</script>
<script language="javascript" type="text/javascript" src="test.js">
</script>

test.js
=====
var testVariable = window.top.testVariable;

In firefox, I'm able to access testvariable defined within test.html in test.js.

But in chrome, test.js couldnot get the window.top.testVariable field defined in test.html.

Can any one please let me know how i can make it work in chrome?. Am i missing something here?.

I want to insert this js snippet
Code:

function addText(smiley) {
    document.getElementById('message').value += " " + smiley + " ";
    document.getElementById('message').focus();
    return false;
}

to a loaded iframe with name&id chtifrm. I can access it & change embed something in its html via using something like:

Code:

 $(parent.chtifrm.document.body).append('<div id=\"smly\" style=\"cursor:pointer;float:left;top:200px;display:none;position:absolute;\"><\/div>');

....
Code:

parent.chtifrm.document.getElementById('chatbox_option_disco').style.display == 'none'

but how do I insert js in the head of loaded iframe?

I got an index.php
Code:

<html>

<form action="bacakomik.php" method='post'>
<select name="kodekomik">
<option value='../komik1/|23'>Judul Komik1</option>
<option value="../komik2/|20">Judul Komik2</option>
<option value="../komik3/|10">Juduk Komik3</option>
<option value="../komik4/|20">Judul Komik4</option>
</select>
<input type="submit" />
</form>
<?php
echo ('<select>');
echo ('<option value= "'.$i.'">'.'Page '.$i.'</option>');
echo ('</select>');
?>
</html>

As you can see, each of the option brings specific value "../komik1/|23"
komik1 is a directory
| is a delimiter
23 is the pages in one chapter and can be considered also as how many images are there on a specific directory

This is my bacakomik.php
Code:

<?php
$dirkomik = $_POST['kodekomik'];
$exploded = explode("|", $dirkomik);
echo ($exploded[0]); //picture directory
echo ("<br>");
echo ($exploded[1]); //total page in the comic
$pagecount = (int)$exploded[1];
//Take last posted value, process it right away
echo ('<FORM name="guideform"> ');
echo ('<select name="guidelinks">');
$i=1;
do  {
echo ('<option value= "'.$i.'">'.'Page '.$i.'</option>');
$i= $i+1;
}while($i <= $pagecount); //Printing option and select
echo ("</select>");
?>
<input type="button" name="go" value="Go!" onClick="document.getElementById('im').src=document.guideform.guidelinks.options[document.guideform.guidelinks.selectedIndex].value+'.png';"> </FORM>
<img src="img0.jpg" id="im">

With the current code on bacakomik.php, I only can change the img src of id "im" in the same directory only. What I want is that the Javascript could "add" the "$exploded[0]" variable so that the picture can be loaded from different directory. Anyone can do this?
I believe that the fix should be somewhere on input tag inside OnClick, or do you know where?

Anyway, I found this on the net
http://p2p.wrox.com/php-faqs/11606-q...avascript.html
Please help me to those who can...

Hi Guys I am trying to modify the functionality of my page. I want to be able to activate this piece of code using another javascript function.

This is the code I want to activate:

Code:

<script type="text/javascript"><!--
$('#button-cart').bind('click', function() {
	$.ajax({
		url: 'index.php?route=checkout/cart/update',
		type: 'post',
		data: $('.product-info input[type=\'text\'], .product-info input[type=\'hidden\'], .product-info input[type=\'radio\']:checked, .product-info input[type=\'checkbox\']:checked, .product-info select, .product-info textarea, .date_data input[type=\'text\']'),
		dataType: 'json',
		success: function(json) {
			$('.success, .warning, .attention, information, .error').remove();
			
			if (json['error']) {
				if (json['error']['warning']) {
					$('#notification').html('<div class="warning" style="display: none;">' + json['error']['warning'] + '<img src="catalog/view/theme/default/image/close.png" alt="" class="close" /></div>');
				
					$('.warning').fadeIn('slow');
				}
				
				for (i in json['error']) {
					$('#option-' + i).after('<span class="error">' + json['error'][i] + '</span>');
				}
			}	 
						
			if (json['success']) {
				$('#notification').html('<div class="success" style="display: none;">' + json['success'] + '<img src="catalog/view/theme/default/image/close.png" alt="" class="close" /></div>');
					
				$('.success').fadeIn('slow');
					
				$('#cart_total').html(json['total']);
				
				$('html, body').animate({ scrollTop: 0 }, 'slow'); 
			}	
		}
	});
});
//--></script>

And this is how I want the format of the function to be:

function testsession() {
if there is a session called 'hiredate' {
activate the script above
}
else {
var el = document.getElementById("product_data");
}
}


I just dont know how to write this in javascript

Could you help me if possible please