im currently trying to create a real-time username checker. Once the user enters the username I would like some javascript to run and check whether the username is already in the database, then if it is return 'this is already in use'.Unfortunately I am not able to use ajax.
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I want to use MathML or maybe javascript graphics and essentially create a real-time math preview. So I want to have a text box where you insert your source code, and I want the preview box to update automatically. For example, say I want the preview box to refresh every time the user enters a space character. Is there a way to get only the new source code entered to render in the preview box without having to re-render the entire preview every time? For example, if a user types 2x^3, I want the math equivalent to show up in the preview window. If a user then types in " + 2x" I want just the " + 2x" part to be drawn right next to the already-drawn "2x^3".
Is this possible? Or is the only way to re-render the entire preview every time the user types in a new term? I would like to only change what the user has edited. If a user edits the middle of the math, then I have no choice and have to re-render everything after what the user has just edited, but when the user is editing the math at the very end, can I not just tag it on to the end and render just that little piece?
I do have the countdown script (see link below) to display the time between current time and the date given in real-time. However, I want to achieve to display the time difference between a given start and end time. Right now, it calculates from the current server time to the end time. I want to be able to set up my own start time and end time.
View 2 Replies View RelatedI need to convert a string containing the time to a real time value so I can insert it in to a time column in my database. tempElapsed = "1:22:33:44:555"
var _tempElapsedHours = tempElapsed.substring(2,4);
var _tempElapsedMinutes = tempElapsed.substring(5,7);
var _tempElapsedSeconds = tempElapsed.substring(8,10);
var _elapsed = Date.parse(new Date(_tempElapsedHours,_tempElapsedMinutes,_tempElapsedSeconds));
The result of elapsed is -1.4243e+012, I was hoping for a time value of 22:33:44
i want to create one java code that do this :
1-one counter is counting 20 to 0.
2-if counter 0 then choose random string between "click one" , "click two" , "click three" and show it.
3-in other table we have three button that name`s are "one" , "two" ,"three".
4-for continue page user must click true button,if user click false button alert "wrong".
I'm trying to create a simple html page, with javascript (NO AJAX!, etc,... ) on it, to let me know if an url (remote file) is online or not.
View 9 Replies View Relatedi am developing a help desk software using php and oracle, when an expert posts a solution to the user who asked it, an alert should pop up at the user's machine to alert them that a solution has been sent end then it should dissappear,i was told to use ajax to check real time and then use javascript to pop an alert but i didnt understand and was told to post it on the javascript section.
View 1 Replies View RelatedI'm making a survey where every question has a numeric value assigned to it, and as the user clicks on a checkmark button to approve (or uncheck to disapprove) the values add or subtract to give a total at the bottom of the page.
Basically, it's a spreadsheet but with fixed values for each row instead of being able to type them in.
I can do this easily with php, but only if the user clicks the submit button. I was hoping to find a way to do this real-time.
I'm not looking for someone to do this for me, but can someone point me in the right direction of a tutorial or something that is similar so I can build this into my program?
Here is a short javascript for a real time analgoue clock. It is designed to resemble some LCD clocks where the hands "fill" in the dial as they move around the face. You can change to values of the "top" and "left" style attributes to position the clock anywhere on your page.
View 4 Replies View RelatedI'm wondering how I can add numbers in real time using javascript.
example,
say I enter a number in a text field,
<input type="text" name="qty" value="2">
<input type="text" name="cost" value="5">
how would I then be able to get the total in another test field, like:
<input type="text" name="total" value="10">
I have a form that is using HTML and PHP to make calculations for an
order form. One of the fields is asking for a total number of
workstations. I would like this field to be a real-time total of five
other fields in this form.
I have been using the jquery countdown plugin made by [url] for a while and while I am pretty familiar with it, I haven't been able to accomplish what I want for one of my projects.
I want to be able to add hours/minutes/seconds to a countdown in real-time by clicking a button.
Let's say I have 2 countdowns. They both get their ending date from a mysql db, e.g: 2010-09-26 00:00:45 and 2010-09-27 14:45:00
When I click a button, I want the countdown Y to increase by the X amount of hr/min/sec, update my ending date in mysql, and update my counter for every visitors to see without having them refresh the page. I have tried messing with ajax, but wasn't able to accomplish anything close. (I got it to update every 1 sec but it would flicker then)
I need to make a counter that counts up (preferably in real time but not crucial).
Ideally, it would count up by 9 dollars per second and go to the hundred millions.
I'm using sliders to change text colour dynamically; at the moment, I'm doing it by iterating through the getElementsByTagName collection; like
paraAry = document.getElementsByTagName("p");
paraLen=paraAry.length;
for(j=0;j<paraLen;j++){
paraAry[j].style.color = "rgb("+bodyColor[0]+","+bodyColor[1]+","+bodyColor[2]+")";
paraAry[j].style.borderColor = "rgb("+textColor[0]+","+textColor[1]+","+textColor[2]+")";
paraAry[j].style.backgroundColor = "rgb("+textColor[0]+","+textColor[1]+","+textColor[2]+")";
}
But blatantly it's well inefficient; is there a better way to achieve this - like just a single property I can change to make all elements of a given name change.
I am using Ajax and Javascript to show real-time data on the web page. On my web page, a 4-digit number is displayed in a text box and this number updates every 10 millisecond automatically to display real-time data (show 100 numbers per second).
What I would like to do is to save the lastest 10 second data in the local PC (client PC) when client clicks a button on the page. Is that possbile with Javascript and Ajax? Or is there any other ways to sort it out?
Just gathering general idea here...
let's say I have a table "Names" with a field "name" --> bob, and tom (2 records)
I want the ajax/php page to pull out all the names. which would be bob and tom. And then if my database got updated at the backend (ex: a new name jack is added). my page showing bob and tom will automatically be updated with jack showing.
I am wanting to write some programs that connect in real time with a server. The problem is I do not have a server and really do not know a whole lot about servers. I do know the basics, it connects with sockets and uses a unique port but I do not know how to build one, So I turn here.
Is it possible to make a server using javascript? If not, then what language is used for servers? is it possible for JS to connect to a foriegn language server?
Anyone know where some good tuts are on this? I type in javascript server in yahoo and just get info on JSP and SSI's..
Does anyone have an idea of how NFL.com updates the scoreboard page real-time?
View 2 Replies View RelatedF.e I have div which id is someDiv and input text which id is someInput - and how to do that value of input object will display in DIV in real time? If i type letter "a" in input, it should automatically display in DIV. Which function should I use?
View 2 Replies View RelatedWhat I'm trying to do is, a jquery script to show in real time the total price. I got this:
<li>Users</li>
<li>
<select name="users" id="users">
<option value='1'>1</option>
<option value='2'>2</option>
<option value='3'>3</option>
<option value='4'>4</option>
<option value='5'>5</option>
<option value='6'>6</option>
<option value='7'>7</option>
<option value='8'>8</option>
<option value='9'>9</option>
<option value='10'>10</option>
</select>
</li>
<li>Months</li><li>
<select name="months" id="months">
<option value='1'>1 Month</option>
<option value='2'>2 Months</option>
<option value='3'>3 Months</option>
<option value='4'>4 Months</option>
<option value='5'>5 Months</option>
<option value='6'>6 Months</option>
<option value='7'>7 Months</option>
<option value='8'>8 Months </option>
<option value='9'>9 Months</option>
<option value='10'>10 Months</option>
<option value="11">11 Months</option>
<option value="12">12 Months</option>
</select></li>
<div class="grand_total">
<h4 class="colr">Price</h4>
<ul>
<li class="price">$0.50</li>
</ul></div>
1 Month and 1 User price should be 0.50 USD
+1 Month = + 0.50 USD
+ 1 User = + 0.50 USD
Example: 5 Users + 2 Months = 3.50 USD
I wanna make the jquery to show the total price at li class="price".
I put together this quick form that allows a user to sign up - the data.php just basically checks a mysql db if the username exists, and either-if it doesn't exist - create an entry in the database with the username, pw, and email and echo "Congratulations, you are added";-if it does exist - it echo "Sorry but 'xxx' is already taken, try again!";his is the weird part though. This works perfect in FF, but IE6 has a weird issue (I only have IE6 here can't test anything else) - With IE6, if the page is freshly loaded, it gives me the correct message - that is, if i put a non-existent name in, it does the echo"Congratulations, you are added"; but if I click on submit again - it doesn't echo "Sorry but 'xxx' is already taken, try again!"; (it does on FF) -If I start a fresh page and input a name that's already in the database it does echo "Sorry but 'xxx' is already taken, try again!"; -- but if i change the username to something that doesn't exist - it doesn't change the echo (i.e. it still says "Sorry but 'xxx' is already taken, try again!"; - but the record is created in mysql! code:
Code:
<html>
<body>
[code].....
How to get a number to update realtime on a site? What I'm looking for is used on the following website:
New & Used Cars For Sale - Arnold Clark
The number with the top vehicle search update when a user makes any of the selections in the form. I think I know how to get the number to update via php and mysql queries on the db but how can I get the effect where the number rolls to the newly updated total?
Is there any alternative way to disable elements in real time as .attr("disabled",true) or .attr("disabled","disabled") do not work in IE7, only with IE8 or FireFox 3?
View 4 Replies View RelatedI have the checkbox validation. I have it set onClick, this works perfectly with both the mouse click and also if the space bar is used to select the option, which is great. However if a user simply 'tabs' over the option it doesn't validate real time. The solution I came up with was adding a onKeyDown event to trigger the same function.
Code:
<input type="checkbox" id="M_TERMS" name="M_TERMS" value="1" onClick="vldTERMS(this.id);" onKeyDown="vldTERMS(this.id);">
I have a small app, my first real ajax project, which gives you details for product availability, for each day. The user selects a day (from a calendar) and then a time slot within the day. The app then displays how many slots are available for purchase, on that day, for that time... I wanted to refresh the data, every 5s, to provide slick real time availability info... but alas, when you change day (look at another day and time), the old timer still runs with the old arguments, and so it keeps resetting the 'details' panel to the previous day's details... how do I reset the timer? or delete the old one?
View 1 Replies View Relatedam very new to JQuery. I need to create a form, which will take username and email id and store it in a text/csv file.I do not want to use PHP/ASP.I am familiar with Java script.Is there a way I could do this?
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