I want to parse data from tables in webpages , there are no problems when I parse regular HTML tables, but it seems to be impossible to get any data from dynamic pages that update themself automatically.how to extract data from dynamic web pages? My goal is to read webpages with an application written in java, parse the page and clean the data and store it in a database.
View 1 RepliesI'm using DOM in javascript to extract data from a dynamically generated html table( table id ="tableId"). Each cell of the table includes an input field to get user input. The problem is below javascript returns "null" always when retrieving the input field value? What I'm doing wrong here?
var mytable = document.getElementById('tableId');
var mytablebody = mytable.getElementsByTagName("tbody")[0];
var myrow = mytablebody.getElementsByTagName("tr")[0];[code]....
I'm slowly discovering the world of JavaScript, so I'm not sure I'm
attacking this problem in the right manner, thus if I'm in the wrong
newsgroup, my apologies.
What I'm trying to do is extract some news items from a web site. To
do this, I'm using Microsoft Word VBA and using the following bit of
script:
What will be the best way to extract dynamically changing information from a web page that holds XML?I have to extract some data from multiple web pages.These sites contain XML code that dynamically reloads (and changes) parts of the page.Since only small parts get a refresh (perhaps 200 bytes every 5 seconds) it wouldn't be efficient (and also might lead to negative reactions from the server) to reload the whole page (about 40k) every time.How could I best determine these updated contents and send them to the program that further processes them?I am familiar with several programming languages but unfortunately have very little knowledge of internet programming.
View 3 Replies View RelatedI'm trying to get some average rgb values from an image in one canvas object and apply them via fillstyle to a rectangle in another canvas object.I have a dropdown that loads an image onChange()="ChangeBaseWood()" into a canvas object. The second canvas object is to be filled with an average color based on the content of the first canvas onClick="GetBaseColor()". For simplicity I've replaced the for loop with just the values of pixel 0,0. Where I think I am assigning the rgb values, the error console keeps reporting that var sample is undefined at the line "var redpart = sample[0].
function ChangeBaseWood(){
var dropdown = document.getElementById('woodvalue');
var woodcanvas = document.getElementById('basewood');[code]....
I've tried various things to assign the redpart,grnpart and blupart but I'm missing something basic.
I'm trying to write code that will extract from an XML file and then display the results. Keep getting a syntax error.
HTML:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>[code]....
My intention was to access all of the tags (name, genre, and hitsong) in the XML file. Thought that var musicianInfo = xmlDoc.getElementsByTagName("*"); would do that. Then, loop through each tag and display the result.
Why isn't it working?
Here is what I'm trying to do. I will pass a directory to a PHP script, that script will then return an array of filenames back to the javascript that called it. In the javascript I want to take the filenames returned and create links to them in an unordered list.
The PHP code to get the filenames is done and when I run the script I get an array that I have formatted into json... an example of the encoded array is as follows...
{"filename:["file01.jpg","file02.jpg","file03.jpg","file04.jpg","file05.jpg","file06.jpg"]};
So here is the jquery I'm trying to use to get the filenames and create my links... But I must be missing something because my variable... data ... is empty... but status is Success.
[Code]...
I wonder if i can make the variable data which is [data] in jQuery.post( url, [data], [callback], [type] ) dynamic. for instance, this is the form i want to send,
PHP Code:
<form action="send_xml.php" method="post" enctype="multipart/form-data" id="form_send"><input type="checkbox" id="var_1" class="checkbox"/><input type="checkbox" id="var_2" class="checkbox"/></form>
[Code]...
Im not sure where to find all the documentation i need for this? I need
to timer since a start button has been pushed, and show a counter on a
page. If they click stop i want to keep the time, and carry on
incrementing it if they click start again.
Any suggestions on code, or reference material for this?
I wasn't sure if this should go in the JavaScript or PHP forum, so I decided JavaScript.
I have created a site that has a form where the user can create as many rows as wanted. I really have no idea how I can then get this information to use in PHP.
Here is my JavaScript function creating the rows code...
I read something about naming each element something such as 'el[]' and then iterating through it on the PHP side, but that didn't make much sense to me. I have only been using PHP for a few weeks now so I'm pretty new.
Would this be ok to use???
<script>
src=data1.js language="javascript" type="text/javascript"
function newdata()
src=data2.js language="javascript" type="text/javascript"
</script>
<a href="javascript:newdata()">new data
I am writing a program that will allow a user to enter a webpage address into a form. Then it will download and display the webpage below the current one.
example
----------------------------------------------------
| _____________ |
| _____________enter web address | Load Button | |
| -------------- |
|_________________________________________________ __
| |
| |
| web page will be displayed here |
| |
|_________________________________________________ _|
Is there a way to download another web page using javascript and read
through it.
I am not too concerned with displaying the web page just downloading
it. Has anyone done anything like this? the closest I have found was a
procedure used by grease monkey "GM_xmlhtt" which is what I am looking
for.
does anyone know a good online resource that shows you how to do image sliders on a web page? For example, I have a image and a arrow (image) above this and the position of the arrow is dependent on a value (which I have).
View 5 Replies View Relatedi would like to know how we can save a set of webpages,for instance the results of 60students whose register numbers may be from a definite range.And also how to take only the necessary information from each page and save it as a text file.
View 2 Replies View Related1 ) how do i access ajax generated data? i have a select boxpopulating via another select. like this:
$("select#parent").change(function(){
var path='json.provider.php';
var options = '';
[code]....
i have a script which i found on the internet. i modify that script according to my needs. what is in that script is there are three form fields with two buttons. one button is "Give me more fields" clicking on this button will give you more fields. and second button is submit so the data goes to server side and will be added to db. the problem is when i click give me more fields it gives me three more fields which is right but when i fill all these fields and click submit button it adds to the db but the data in the first three fields adds in the one row and the other three fields data adds in separate row which is not fine for me. so how can i do this so all the data will be added to only one row.
here is js code
Code:
var counter = 0;
//Start a counter. Yes, at 0
function add_phone() {
counter++;
[Code]....
I am trying to write a javascript that once a link is pressed, a popup opens and a series of websites, with 2 changing parameters (from arrays), are loaded in series (after a time delay, or if possible once the page has loaded). I have managed to get a working script together, but I can't seem to make it load within the same window, instead of loading several pages after each other. So what I am asking really is, how do I ensure it loads within the same popup window? and If possible, how can I improve the code so that it only "pauses" until the page is loaded instead of just waiting 10 seconds?
Code:
<script type="text/javascript">
function makeCrankWindow(url){
crankWind = window.open(url,"Cwindow");
if (window.focus) {newwindow.focus()}
return false;
}function Crankwindow(){
var wid = []; //Titan Id Array
wid[0] = "53";
wid[1] = "57";
wid[2] = "194";
wid[3] = "196";
wid[4] = "242";
wid[5] = "286";
var sid = []; // Facebook Id Array
sid[0] ="5089"; // NAME HERE
var timeout = 0;
for (var i=0; i<2; i++){
for (var j=0; j<6; j++){
setTimeout('makeCrankWindow("[URL] source=190&sourceu=' + sid[i] + '&wid=' + wid[j] + '","Cwindow")', timeout);
timeout += 10000;
}}}
</script>
I am creating a dialog using jQuery, and want to populate it with dynamic data. The data in question is properly formatted XML (parsed using jQuery). The call I make looks something like this:
function getXML() {
var $link = $(this);
var $dialog = $('<div></div>')
.load('xml_results_formatted_jquery.php' + ' #dialogcontent')
[Code]....
If I preview the xml_results_formatted_jquery.php file, I see the data so I know the webservice is being queried correctly. However, when I call my function above, the dialog box created has no text in it (apart from the text already present in the dialogcontent DIV). The bit that shows the results of the XML parse is empty.
I am needing an accordion with dynamic data loading on each tier.
View 1 Replies View RelatedI am using the cluetip plugin to show a formatted version of text thatthe user types into a text area. So I have a <textareaid="description">, and as the user types, they can at any time click a"preview" button will call cluetip to display the popup. Here is mycurrent cluetip call:
$('#id_preview_link').cluetip(
{
ajaxSettings: {dataType:'html',
[code]....
Currently I have this web database app that I wrote in which I have a page with 3 tables. When I want to enter data into the table I currently select the table name from a drop down list and then have a javascript window open containing a form. The form is processed using php and oracle. The parent window which is the page containing the 3 tables then gets reloaded and, behold you can see a row contaiing the data underneath the choosen table. Have a picture in your mind of my setup?
Ok, what I would like is to try and eliminate the popup window. On each of the table headers I would like to have a button that when clicked, adds a row of input cells, say 6 for example . They should be able to have as many rows as they want. I would also like to add a submit button and a remove row button. And that is it.
From there I can handle the input of the multiple rows with php arrays and array splice to get the indexing I want. That is no problem. I have just never done anything dynamic and have very little javascript experience.
I think I know the answer to this but I want to ask anyway. There are scores of pages on a particular website that I need to download so I can process them. They would all come down as XML files. I wrote a desktop app a while ago to do this but I was hoping to move this functionality to my website. This is an example of one of the pages I would download/copy:[URL]... A related question is... after I get all of these pages into a folder on my machine... I will need to point JQuery to the folder where they were copied and process each one. Does JQuery have a built in way to open a folder and capture all the files inside so they can be processed? I couldn't find anything like that.
View 2 Replies View Relatedi want to make a horizontal slider to my web pages
i want to make a home page and when a user selects another page like Clients Page, the page loaded in the same frame with horizontal sliding
When designing a web page, you may come across a situation where you want to combine content from multiple websites in a single window. Could the "iframe" tag makes this possible? If so, as it will separate your page design into several sections and display a different website in each one?
View 5 Replies View RelatedI am using JQuery Mobile . I have populated Select box with dynamic data, The UI shows just one item populated, rest does not get rendered , here's code. The option loop iterates 5 times but the select box just show one item when renderd. Is it Jquery mobile the select box cannot be populated dynamically?
var options ='';
$("#select-choice-1").empty().append(function() {
$.each(data.maps,function(key, value){
options += '<option value="' + i + '">' + value + '</option>';
[Code]....
I'm trying to find a JQuery plugin that will:
a) preload all img's and background's on a given page
b) display an animated gif in the center of the original's img's or background's container
c) fade out showing each image once it's downloaded
d) as a consequence of (a) allow the page to render (show) quicker even if (depending on server speed, connection speed and user computer speed) the remaining images are still in a 'load state'.
e) is based on JQuery so not to increase page's footprint via adding Mootools, Prototype, YUI or the like (unless the additional 100KB or so is so worth it).
I've scouted Google and there a few out there but amazingly none seem to focus on doing this for a web page's image's but rather seem to focus on galleries/lightbox windows and so forth.