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JavaScript - Appending Javascript Snippet Via Javascript
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? Similar TutorialsHello! 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 Hi folks, I was hoping someone could help explain why the following code actually works. It's from an example in a book I'm working on (Head First Ajax) and I'm not sure why it works and I'd like to understand it. Code: window.onload=initPage;
function initPage() {
//find thumbnails on the page
thumbs=document.getElementById("thumbnailPane").getElementsByTagName("img");
//set the handler for each image
for (var i=0; i<thumbs.length; i++) {
image=thumbs[i];
//create the onclick function
image.onclick=function() {
//find the full size image name
detailURL = 'images/' +this.title+ '-detail.jpg';
document.getElementById("itemDetail").src=detailURL;
//getDetails(this.title);
}
}
}
By adding -detail.jpg when an image is clicked, it will replace the current image with a slightly larger version of the image, which has an identical name but with -detail added. My problem is that looking at the for loop, it seems that, since there are four images, the value of i would be 4, and that onclick wouldn't work for images 1,2 and 3. It does work though, so there must be an array being created within the loop (??). I was thinking that the image variable is turned into an array consisting of four images...it's the only explanation that makes sense...but I don't understand how it works. Can someone explain the principle behind this bit of code? 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, 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?. 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 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']);
$('html, body').animate({ scrollTop: 0 }, 'slow');
}
}
});
});
//--></script>
And this is how I want the format of the function to be: function testsession() { if there is a session called 'hiredate' { activate the script above } else { var el = document.getElementById("product_data"); } } I just dont know how to write this in javascript Could you help me if possible please Hey, I've got to make the values of some textboxes change the co-ordinates of my sprite on a canvas and havent a clue on how to do it, Here is my form with the two textboxes and submit button: <form> x: <input type="text" name="x" /><br /> y: <input type="text" name:"y" /><br /> <input type="submit" value="Submit"/><br /> </form> And i need it so that they change the values of these: //this shows where my sprite will start on the canvas var block_x; var block_y; searched the internet for hours and cant really find anything i understand or works. any help is much appreciated I got an index.php Code:
<html>
<form action="bacakomik.php" method='post'>
<select name="kodekomik">
<option value='../komik1/|23'>Judul Komik1</option>
<option value="../komik2/|20">Judul Komik2</option>
<option value="../komik3/|10">Juduk Komik3</option>
<option value="../komik4/|20">Judul Komik4</option>
</select>
<input type="submit" />
</form>
<?php
echo ('<select>');
echo ('<option value= "'.$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... Hello, In the below script syntax, a simple table converts Celsius degrees into Fahrenheit, using the For loop and integrating it into a table. Code: <html>
<head>
<title>Celsius-Fahrenheit Converter</title>
</head>
<body>
<table border=3>
<tr><td>CELSIUS</td><td>FAHRENHEIT</td></tr>
<script language="javascript">
for (celsius=0; celsius<=50; celsius=celsius+1)
{
document.write("<tr><td>"+celsius+"</td><td>"+((celsius*9/5)+32)+"</td></tr>");
}
</script>
</table>
</body>
</html>
My questions are about the following script inside the <td> tags: <td>"+celsius+"</td> <td>"+((celsius*9/5)+32)+"</td> 1) why is the script inside the above <td> tags placed between " " ? 2) why is the script inside the above <td> tags placed between + + ? Thanks a lot for your explanation to an absolute Javascript beginner...! What am I doing wrong here. I'm trying to generate this code into my listOfSquares UL using javascript: Code: <a href="#" id="square0"><li class="square"></li></a> This is my complete code: Code: <html">
<head>
<title>Squares</title>
<style>
li.square {
width: 26px;
height: 26px;
border: 1px solid black;
display: block;
float: left;
margin: 5px;
background-color: #39F;
}
div#squares {
width: 725px;
margin: 50px;
background-color: #CCC;
float: left;
}
div#form {
width: 700px;
text-align: center;
clear: both;
margin: 50px 50px 0 50px;
}
</style>
<script>
<!--
function generateSquare() {
var number = 0;
var squareID = "square" + number;
var container = document.getElementById('listOfSquares');
var linked = document.createElement('a');
linked.setAttribute('href', '#');
linked.setAttribute('id', squareID);
container.insertBefore(linked, container.firstChild);
addToElement(squareID);
}
function addToElement(elementID){
var new_element = document.createElement('li');
new_element.setAttribute('class', 'square');
document.getElementById(elementID).innerHTML=new_element;
}
//-->
</script>
</head>
<div id="form">
<form>
<input type="button" value="Generate Square" onclick="generateSquare()" />
</form>
</div>
<body>
<div id="squares">
<ul id="listOfSquares">
</ul>
</div>
</body>
</html>
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 Appending to a div (id=right) over time. There is a scrollbar on the right side. At some point, the scrollbar appears but the user has to manually move the scrollbar to the bottom to see the newest appends. Googled and found a number of "solutions" that I can't get to work. The ideal would be to always have the scrollbar move to the bottom after each append. Code: #right {
background-color: #FF0;
width: 150px;
height: 300px;
float: right;
overflow : auto;
}
$("#right").append("<p>something important here");
On a web form my users choose different variables to "shock" (ie change relative to a starting base) over different periods: eg user "shocks" US interest rates 0.50% points above base during 201202-201304 (ie 2012 Quarter2-2013 Quarter4) User may then add another "shock" to same variable: US interest rates .75 % points above base during 201301-201404 (ie 2013 Quarter1-2014 Quarter4) User may then add "shock" to different variable: JAPAN interest rates (RSH_j) 1.00 % points above base during 201201-201404 (ie 2012 Quarter1-2014 Quarter4) I have generated a Select area (ShockVarPlot) that concatenates the required component data from DD boxes for charting: RSH_u,201202-201304,+0.50 RSH_u,201301-201404,+0.75 RSH_j,201301-201404,+1.00 (NB each line of the above Select box is formed after the "Add Shock" button is clicked, so this is the obvious event to trigger the Chart Plot too) For EACH particular variable being shocked (eg RSH_u, RSH_j) I would like to instantly plot the entire profile of each shock. Subsequent shocks to the SAME variable may simply append to earlier shocks or may (partially) overwrite depending if the time period chosen overlaps. But once a NEW shock variable is chosen (eg RSH_j) , the previous plot (of RSH_u) simple gets overwritten in the common plot area. The x-axis scale width can be hard-coded; say 201004-202104. Charting Requirement (for common plot area) ---- "Add Shock" button=> First Plot - Plot RSH_u +0.50 above base over 201202-201304....... "Add Shock" button=> ....then (partially) overwrite/append with +0.75 over 201301-201404 "Add Shock" button=> Second Plot - Delete above plot & Plot RSH_j +1.00 above base over 201301-201404 Chartplot needs to display the variable being charted eg "RSH_u"or "RSH_j" Logic Requirement ---- If new shock => plot this magnitude over selected period within 201001-202104 If new shock (same variable) => plot this as above but this shock overwrites previous if any time-period overlap If new shock (new variable) => delete first plot & plot this magnitude over selected period within 201001-202104 Question -------------- Is there a simple Javascript method to achieve this real-time plotting/appending on clicking "Add Shock" ? I have seen things like FLOT charting but not sure how to read/chart my Listbox output in ShockVarPlot above Any thoughts ? EDIT: I SOLVED THIS BY USING "#" instead of "?". Thank you. Hello. My goal is to take a user's email from a form, store it in a cookie, and append it to the window location on the following page. I am doing this so that when a user shares the page with "add this widget" the stats will show me who shared the page. The problem I have is that window.location.replace("?"+ user_email); seems to be sending the browser in an infinite loop. Right now it is running as an inline function in the head. I tried calling the function with body onload and had the same problem. Code: <script = "Javascript">
(function readCookie() {
var user_email = unescape(document.cookie);
if (document.cookie)
{
window.location.replace("?"+user_email);
}
})();
</script>
Is there another way I could achieve the same result? Thank you, Jack 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? Hey all, I'm in process of writing my own script (I don't want to use any jquery plugins) to render a table and allow for filtering/searching. So when user clicks on link, by default there will be parameters passed in query string as you can see in the setDefaults private method below. However, I'm stuck trying to figure out the best way to append values selected from filter dropdown to the query string. I know it will involve something along the lines of $("select").change(function(){var option = $(this).val()}). But I am having difficulty figuring out how to incorporate it with this. I would like to make use of the below buildFilter function somehow: Code: (function($){
var listview = $('#listview');
var lists = (function(){
var criteria = {
drop_filter: {
check: function(value){
if(value)
return
},
msg: "Loading..."
},
search_filter: {
check: function(value){
if(value)
return
},
msg: "Loading..."
}
}
var handleFilter = function(){
}
return {
create: function(component){
var component = component.href.substring(component.href.lastIndexOf('#') + 1);
return component;
},
setDefaults: function(component){
var parameter = {};
switch(component){
case "sites":
parameter = {
'order': 'site_num',
'per_page': '20',
'url': '/sites'
}
}
return parameter;
},
buildFilter: function(){
if(event == "change")
return criteria.drop_filter();
}
}
})();
$('#dashboard a').click(function(){
var currentComponent = lists.create(this);
var custom = lists.setDefaults(currentComponent);
initializeTable(custom);
});
var initializeTable = function(custom){
var defaults = {};
var query_string = $.extend(defaults, custom);
var params = [];
$.each(query_string, function(key,value){
params += key + ': ' + value;
})
alert(params);
}
})(jQuery)
Thanks for any response. I have written javascript for mouseover and click event to change the images. Here is a URL http://leowareit.com/imageselect/ The aim is when user click any of image, it should be selected and other should not be selected. I achieve this by changing the images. with following code Code: $(function() {
$('.gender').click(function(){
$('.gender').each(function() {
$(this).attr('src','http://dev.trivian.com/theme/trivianV2/icon/' + $(this).attr('alt')+'_up.png');
});
var src = 'http://dev.trivian.com/theme/trivianV2/icon/' + $(this).attr('alt')+'_down.png';
$(this).attr('src',src);
});
});
And also when user do mouse over to the images, the images get changed with following code Code: $(function(){
$('.gender').hover(function(){
$(this).attr('src','http://dev.trivian.com/theme/trivianV2/icon/' + $(this).attr('alt')+'_down.png');
},
function(){
$(this).attr('src','http://dev.trivian.com/theme/trivianV2/icon/' + $(this).attr('alt')+'_up.png');
});
});
Now the problem is if I remove the mouse-hover code, the image selection is working properly with onclick, but with mouseover code, the click event get overwritten. Any help will be appreciated. I am not that good at javascript. Thanks I have created images for selecting male and female Here is a URL http://leowareit.com/imageselect/ the javascript I have written is $(function() { $('.gender').click(function(){ var src = images/ + $(this).attr('alt')+'_down.png'; $(this).attr('src',src); }); }); Whic is selcting images on click but I want to select only one image at a time, so the other images should be deselected. I am using two images one for selected and another for not selected. Help please. I want to apply this to my phpbb forum, but I am working on local so cannot post the URL to forum here thanks in advance Here is a URL http://leowareit.com/imageselect/ |
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