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JavaScript - Need Javascript Square Bracket Hack!
Hey, hoping someone can help. As this is my first post and I have a very very very small understanding of Javascript you have permission to mock me!
Anyway, here goes... I am using a third party shopping cart system. One of the dropdown menus uses an array as the 'name'. <select name="product[]"> I'm pretty sure it has to stay this way or the cart won't work. I have a function which runs to make sure it can't be left on the first option when submitted, however it won't work with the 'name' containing square brackets! function validate_form_acflgotmt ( ) { valid = true; if ( document.acftshirt.product[].selectedIndex == 0 ) { alert ( "Neigh! Whoa boy, don't forget to choose a t-shirt size!" ); valid = false; } return valid; } If anyone can help please do and I will shed a single tear of joy. Thanks! Jake Similar TutorialsHey Everyone, I'm hoping you all can help me with this. I have created a html ncaa tournament bracket for my website in which I hold annual competitions. Recently, my competition has grown and I need a better way for users to submit their brackets. What Im looking for is a way to allow the person filling out the bracket to click on their predicted winner for each game, which will then fill out the bracket as they move through the bracket until the have predicted a national champion. Any Ideas? All, I have the following code: Code: function createSquare(event) {
var x = parseInt(event.clientX);
var y = parseInt(event.clientY);
var left = x - 50;
var top = y - 50;
var d = document;
var div = event.target.parentNode.lastChild;
//alert(div.nodeType)
if (div.nodeType != 1)
div = d.createElement('div');
div.style.width = "100px";
div.style.height = "100px";
div.style.position = "absolute";
div.style.left = left + "px";
div.style.top = top + "px";
div.style.zIndex = 5;
div.style.border = "10pt solid black";
var leftbox = x - 80;
alert(x);
alert(leftbox);
divselect = d.createElement('select');
divselect.style.position = "absolute";
divselect.style.top = top + "px";
divselect.style.left = leftbox + "px";
var sel = d.getElementById('tagged_person');
sel.style.display = 'block' //or block if you have a hidden div
var tagged_user = d.tag.tagged_person;
tagged_user = tagged_user.value;
var picture_id = d.tag.picture_id;
picture_id = picture_id.value;
divselect.appendChild(sel);
event.target.parentNode.appendChild(div);
event.target.parentNode.appendChild(divselect);
This shows me a square and a select but the select isn't populated with anything. i do have a form later on down the page. The form code is (which I try and pull in the info from the select in the form in the select in the createSqua PHP Code: <form action="" name="tag" method="post"> <input type="hidden" name="picture_id" value="4"> <select name="tagged_person" id="tagged_person"> <?php $qryfav = "Select * from favorites where user_name='creep'"; $resultfav = mysql_query($qryfav); while($resultsetfav = mysql_fetch_array($resultfav)){ echo "<option value=\"$resultsetfav[favorite_user]\">$resultsetfav[favorite_user]</option>"; } ?> </select> </form> Thanks for the help in advance. What is the [0] for? And even better if you can tell me what they're called, in this context; I want to find a tutorial. Tryit Editor v2.1 PHP Code: var a=document.getElementsByTagName("a")[0]; Thanks! Hello wise javascript programers I come to you for help with some programming assignment Im not quite getting the assignment it self is based on the use of the getElementsByClassName() method. Basically I have a 3x3 table with some outer cells that at this point dont do much. there is a loop that iterates through all the inner cells checking for errors. inside the cells, are input boxes. the loop checks to see if the inner cells are empty, contain a non-numeric value, or a zero. if any of this instances is true, a message is displayed explaining the situation. those cells that DON'T have a number will be colored in yellow indicating that numbers should go in there. I got as far as testing all the conditions and generating the appropriate messages, I wrote additional code that supposedly colors the cells that have other than a number in but the code does not execute this is the code if you would like to take a peek at it and help a newbe out. thanks Code: <html>
<head>
<title>Magic Square</title>
<script type="text/javascript">
function checkit()
{
var j;
var inputelement = document.getElementsByClassName("inner");
var colorcells = document.getElementsByClassName("in");
for(j=0;j<inputelement.length;j++)
{
if(inputelement[j].value=="")
{
alert(" you must enter a number cells cannot be empty");
for(r=0;r<colorcells.lenght;r++)
{
colorcells[r].style.backgroundColor="yellow";
return false;
}
}
else if (isNaN(inputelement[j].value))
{
alert(" you must enter a number cells cannot be a letter");
for(r=0;r<colorcells.lenght;r++)
{
colorcells[r].style.backgroundColor="yellow";
return false;
}
}
else if(inputelement[j].value <= 0)
{
alert(" you must enter a number cells cannot be zero");
for(r=0;r<colorcells.lenght;r++)
{
colorcells[r].style.backgroundColor="yellow";
return false;
}
} //end else if
} //end first for loop
} //end function
</script>
</head>
<body>
<table align="center">
<tr><td></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td><input type="text" size="1" maxlength="1" readonly class="outer" /></td></tr>
<tr><td></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td class><input type="text" size="1" maxlength="1" readonly class="outer" /></td></tr>
<tr><td></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td><input type="text" size="1" maxlength="1" readonly class="outer" /></td></tr>
<tr><td></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td class="in"><input type="text" size="1" maxlength="1" class="inner" /></td><td><input type="text" size="1" maxlength="1" readonly class="outer" /></td></tr>
<tr><td><input type="text" size="1" maxlength="1" readonly class="outer" /></td><td><input type="text" size="1" maxlength="1" readonly class="outer" /></td><td><input type="text" size="1" maxlength="1" readonly class="outer" /></td><td><input type="text" size="1" maxlength="1" readonly class="outer" /></td><td><input type="text" size="1" maxlength="1" readonly class="outer"/></td></tr>
<tr><td colspan="5"><input type="button" value="Check The Magic Square" onclick="checkit()" /></td></tr>
<tr><td colspan="5"><input type="button" value="Clear The Magic Square" onclick="clearit()" /></td></tr>
</table>
</body>
</html>
I know very little about javascript, but was wondering if something like this can be done? Would it be possible (with mootools or jquery) to have homepage that will rotate its home page content forwards and backwards based on either triangle or square? ie, you can rotate through 3, 4, etch home pages? Sort of like a slider, but it rotates off a center axis of the triangle or square? so my site ... www.brianapurserphotography.com/kitchen1/ (click portfolio to see the div im referring too) loads fine in firefox and safari on my mac but.... refuses to scroll in IE so to find out tonight. The scroll bar comes up just fine but the actual scroll bar itself that one uses to drag does not. All that shows is an inactive scroll bar with inactive arrows. Why? I needed to know if a remote Page was completely loaded in an iframe. If I try to use framename.contentDocument.readyState=='complete' I get an permissions error. However if a create a local Page such as: ----------------------------------------------- <html> <body> <iframe src="http//:somewhere.com" > </iframe> </body> </html> --------------------------------------- I can check whether the local Page, hence the remote Page I was interested in is loaded. Will this hack go away or does it conform to the standard? 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 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... Hey, I've got to make the values of some textboxes change the co-ordinates of my sprite on a canvas and havent a clue on how to do it, Here is my form with the two textboxes and submit button: <form> x: <input type="text" name="x" /><br /> y: <input type="text" name:"y" /><br /> <input type="submit" value="Submit"/><br /> </form> And i need it so that they change the values of these: //this shows where my sprite will start on the canvas var block_x; var block_y; searched the internet for hours and cant really find anything i understand or works. any help is much appreciated 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 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? All -- I have a JavaScript config file called gameSetting.js which contains a bunch of variables which configures a particular game. I also have a shared JavaScript library which uses the variables in gameSetting.js, which I include like so: <script type="text/javascript" src="gameSetting.js" ></script> <script type="text/javascript" src="gameLibrary.js" ></script> In gameSetting.js I have: $(document).ready(function() { // call some functions / classes in gameLibrary.js } in Firefox, Safari, and Chrome, this works fine. However, in IE, when it's parsing gameSetting.js, it complains that the functions that live in gameLibrary.js aren't defined. When it gets to parsing gameLibrary.js, the variables in gameSetting.js are reported as not being defined. I've tried dynamically bootstrapping the gameLibrary file using this function in document.ready for dynamic load... $.getScript("gameLibrary.js"); However, the same problem still happens in IE, where when it parses the files individually it's not taking into context the file/variables that came before, so it's not an out of load order problem. My options a 1) collapsing all the functions in gameLibrary.js and variables in gameSetting.js into one file. However, this is not practical because this is dealing with literally hundreds of games, and having a gameLibrary.js in ONE location for ONE update is what makes most logical sense. 2) figure out a way to get this to work where variables in file1 are accessible to file2 in IE (as it seems they are in other browsers). jQuery seems to be able to have multiple plugins that all refer to the based jQuery-1.3.2.js, so I know there is a way to get this to work. Help appreciated. Nero I wrote a log function that took note of various function calls. Thinking that functions are first class objects, and objects have properties, I made the name of each logged function a property of that function, e.g., brightenInnerPara.name = "brightenInnerPara"; Every browser I tried (Firefox, MSIE, Opera, Chrome, Safari) accepted the assignment, no problem. In Firefox and MSIE, the result was what I wanted: brightenInnerPara.name == "brightenInnerPara" But in the others, the result was: brightenInnerPara.name == null Question 1. Which Javascript is correct here? I favor Firefox and MSIE, not merely because they were willing to give me what I wanted, but also because it makes no sense to accept an assignment statement without throwing an error and then give it a null semantics, like Chrome, Opera, and Safari did. I found a workaround, using assignments like this: brightenInnerPara.prototype.name = "brightenInnerPara"; To my surprise, that worked in every browser. But I don't know why. It seems that such assignments are enough to cause each function to have its own distinct prototype. Question 2. Just how inefficient is my workaround, and why does it work? I'm trying to get my grasp on what JS is. I read everywhere how it's nothing like java but by telling me what it isn't doesn't tell me what it is. Basically, what is is generally used for/what are the best ways to use it.
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