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JavaScript - Handling Events Asynchrounusly
Hi,
I have a func1() called when mouseOver even fired. And while the func1() is executing if mouseOut event fires I want to exit the func1(). If anybody knows how to do this please let me know. Thanks Similar TutorialsHi I am using httpXmlRequest object to call a xml web service. In order to successfully perform a task there are couple steps need to happen. 1 you have to request for a session (cookie) 2 with the cookie, we need to authenticate with the server 3 then perform other actions snippet of my code looks something like this. Basically here i am trying to get the cookie, login and then logout once logged in. function connect() { document.myForm.elements['myTextArea'].value += "connecting to teh server.\n"; try { xhttp.open("GET",urlStr + commonInfoParam, true); xhttp.send(); xmlDoc = xhttp.responseXML; xmlDoc.onreadystatechange = function () { if(xmlDoc.readyState == 4) { var resultsTag = null; resultsTag = xmlDoc.getElementsByTagName("results"); if(resultsTag != null) { for(i=0;i<resultsTag.length;i++) { var commonTag = resultsTag[i].getElementsByTagName("common"); for(j=0;j<commonTag.length; j++) { cookie = commonTag[j].getElementsByTagName("cookie")[0].childNodes[0].nodeValue; break; } } } if(cookie != null) { document.myForm.elements['myTextArea'].value += "cookie found: " + cookie + "\n"; login(); } } }; } catch(e) { document.myForm.elements['myTextArea'].value += "Exception occurred at connect: " + e.message + "\n"; } } function login() { var loginRequestURL = "http://testconnect.com/api/xml?action=login&login=" + username+ "&password=" + password + "&session=" + cookie; try { xhttp.open("GET", loginRequestURL, true); xhttp.send(); xmlDoc = xhttp.responseXML; xmlDoc.onreadystatechange = function () { alert('in loginResponseHandler'); if(xmlDoc.readyState == 4) { try { loginStatus = xmlDoc.documentElement.childNodes[0].attributes.getNamedItem("code").nodeValue; if(loginStatus == 'ok') { alert("login is good: " + loginStatus); logout(); } else { } } catch(e) {} } }; } catch(e) { } } function logout() { alert("in logout"); try { xhttp.open("GET", logoutRequestURL + cookie, true); xhttp.send(); xmlDoc = xhttp.responseXML; xmlDoc.onreadystatechange = function () { alert("in logoutResponseHandler"); if(xmlDoc.readyState == 4) { try { status = xmlDoc.documentElement.childNodes[0].attributes.getNamedItem("code").nodeValue; if(status == 'ok') { alert(status); } } catch(e) {} } }; } catch(e) {} } so when I run my code in the browser, all my alert stages give me proper message as expected. But at the final alert, it hangs. I just could not figvure out what am i doing wrong. can any one pin point this out for me please? Thanks in advance. KM I am using a freebie script that changes css elements using onClick when you hit a button. I have 12 choices I want to add, and don't want 12 buttons, but rather a dropdown list. 2 button examples (and js code) is: <input onclick="changecss('li','background','url(images/list_02.jpg) no-repeat 10.2em .12em')" value="Change to BG 2" type="button" /> <input onclick="changecss('li','background','url(images/list_03.jpg) no-repeat 10.2em .12em')" value="Change to BG 3" type="button" /> How do I convert this to a SELECT list?? Thank you! I've used js only for simple form validations thus far. I've been working on a coldfusion/ajax dynamic select list for a few days and just about have it functioning the way I want it. My question is this. Whats the best way, if any, to handle users who turn js off. What I mean is, I have so far three separate queries for my three select lists, and are populated with ajax calls. Is there a way to get the same functionality with standard queries and page refreshes in case a visitor does have js disabled? Thanks for any tips and advice. Hi I am new to Javascript. I am working in keyboard Event handling. i dont know how to handle multple keys pressed or sequence of keys pressed. Want to know more about key holding , key Listener. Hi everyone; I have created a JavaScript function to show either a enabled or a disabled text input field depending on whether a checkbox has been clicked or not. It works great for that purpose. However, when I use it for more than one text input field and I submit the form, it goes back to its disabled form. This is a problem if you by mistake submit the form without filling all the fields. As I said, the submit button makes the form go disabled. Is there a way to either not have the form go disabled after submission or to have a "Oncheck" function so I can use $_SESSION to keep the checked attribute? Thanks in advance for all your help Code: <html>
<head>
<style type="text/css">
#Active {
display:none;
}
</style>
<script type="text/javascript">
function toggle() {
if (document.getElementById) {
if (document.getElementById("checkbox").checked == true) {
document.getElementById("Active").style.display = "block";
document.getElementById("Inactive").style.display = "none";
} else {
document.getElementById("Inactive").style.display = "block";
document.getElementById("Active").style.display = "none";
}
}
}
</script>
</head>
<body>
<?php
echo "Add Field";
echo "<input type=\"checkbox\" name=\"check\" id=\"checkbox\" onClick=\"toggle();\" value=\"v\"/>";
echo "<form method=\"post\">";
echo "<div id=Active>";
if(isset($_SESSION['test']) && $_SESSION['test']!="")
{
echo "<input name=\"test\" value=\"". $_SESSION['test']."\" type=\"text\" />";
}
elseif(isset($_POST['test']) && $_POST['test']!="")
{
echo "<input name=\"test\" value=\"". $_POST['test']."\" type=\"text\"/>";
}
else
{
echo "<input name=\"test\" type=\"text\"/>";
}
echo "<input type=\"text\" name=\"test2\" >";
echo "</div>";
echo "<div id=Inactive>";
echo "<input type=\"text\" disabled>";
echo "<input type=\"text\" disabled>";
echo "</div>";
echo "<input type=\"submit\">";
echo "</form>";
$test = $_POST['test'];
$_SESSION = $_POST['test'];
$test2 = $_POST['test2'];
$_SESSION = $_POST['test2'];
echo $test;
?>
</body>
</html>
This is what I have: http://page-test.co.uk/js-test.html ..and it works exactly how I want it to, but I need it to work by doing these two things: (a) If you see in the change_button function, I have hard coded the 'name_can_vary' name element. I need to do it so this isn't hard coded (so it can work on any page/form). (b) I don't want to change any of the HTML, and I only want to change the code used in the change_button function (otherwise I will need to change many pages). Thanks in advance. i have a link that references: <a href="My_Video.asx">video</a>. when you click, video will open in the "windows media player" and the parent window goes blank. how can i prevent the parent window from going blank? thank you for help julio I don't have much experience in Javascript and would like to hear your suggestions before choosing which direction to pursue for my project. I want to design a web page which allows a user to input a file which contains a list of addresses. Then send these addresses to Google Maps API for geocoding and returned XY coordinates will be saved in a file and downloaded to the PC. Can this be done completely in Javascript(client side handling) or the input addresses need to be sent to a server and let the server talk to Google Maps API to complete geocoding and then send back the coordinates data to the browser(sever side handling). Please help!
I've been looking at the specs for javascript, but I don't understand results I'm getting. A Date object is calculated from the number of milliseconds since Jan 1, 1970. A PHP DateTime object is calculated from the number of seconds since Jan 1, 1970, so from the latter, add three zeros, and you have milliseconds. The issue I have happens when I set the date. Below is the result of a test already filled out when I entered April 23, 2000 @ 17:00Hrs. The resulting alert shows 17:0, which is correct. But change the date to, say, 1981 and try it again. The corresponding timestamps are 356922000 and 356922000000 (Hard to see? That's '356922' ending in three zeros and six zeros respectively ;-)). My alert now reports 18:0! Since the timestamp should be good for any time after Jan 1, 1970, why is the display off for a date in this year? What mechanism is responsible for this? Yep, that's it. I'd really like to know, though... Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Simple Time Test</title>
<link href="notifications.css" rel="stylesheet" type="text/css" media="screen" />
<script language="javascript" type="text/javascript">
function display_time(){
var theTime=new Date();
theTime.setTime(956534400000);
alert(theTime.getHours()+':'+theTime.getMinutes());
}
</script>
</head>
<body>
<form>
<input type='button' onclick='display_time();' value='click' />
</form>
<?PHP
/*
1. First put a date and time in the setDate() and setTime() calls.
2. Run this. The result will be a timestamp. Place that in the setTimestamp call, AND copy it into the setTime javascript call,
appended with three zeros (to go from seconds to milliseconds).
3. I'm finding that when the alert pops up, the time it displays is not always the same as the output from the echo statement!
*/
echo '<br />';
$t3_var = new DateTime();
$t3_var->setDate(2000,04,23);
$t3_var->setTime(17,0);
echo 'timestamp: ' . $t3_var->getTimestamp();
echo '<br />';
$decoder1 = new DateTime();
$decoder1->setTimestamp(956534400);
echo 'time: ' . $decoder1->format('m-d-Y, H:i') . '<br />';
?>
</body>
</html>
Resolved!
Long time since I have been on here been really busy with college etc, I am in need of some help / advice on how to get my head around something I need to do. Basicly I want to do is be able to do two kinds of AJAX requests in one function called AJAX. Example of type one: Code: AJAX('div#example',{
type: 'post',
url: 'example.php',
params: {do:'test',type:2},
success: function(o) {
this.innerHTML = o.responseText;
}
});
The above code will set the innerHTML of the div with an id equaling 'example' with everything that is visible on the page example.php when the parameters are do=test&type=2. Example of type two: Code: var div = document.getElementById('example'),
example = AJAX({
type: 'post',
url: 'example.php',
params: {do:'test',type:2}
});
if(div && example.responseText) {
div.innerHTML = example.responseText;
}
The above code does the same thing as the code in example one but this time there is no success function but everything has been assigned to the variable 'example' which has now become an object. Basicly what I need to know is in a function like this. Code: function AJAX(t,o) {}
How can I assign the current AJAX response to the success function but still be able to use 'this' to refer to the object for 'div#example', and with the second example how can I assign the AJAX response to the variable for use after the AJAX call has been done? Thank you in advance... - DJCMBear Hi guys, I'm a newbie so bear with me please. I downloaded this calendar which is now working great: JavaScript Calendar - Digital Christian Design (http://www.javascriptkit.com). Does anyone know how to change the date format from mm/dd/yyyy to dd/mm/yyyy? Also, is it possible to have links on such a calendar? I.e. in the event descriptions? Thanks. i have a checkbox: Code: <input type="checkbox" id="my_checkbox" name="option2" value="Check" checked>Check i want to add an event to it so that i do something to a dom element when it is checked and when it is not checked.What is the event and how can i get its status? Hi Guys I have been trying to implement a way of using `onclick` to fill out a form field, with a Value assigned by a clickable rollover image. So i have a image rollover of a PC, i give the PC a Value? ID? of `PC No34` When the image is clicked it updates its Value of PC No34 to a Form text field which is named `pcid` the Form is on the same page as the PC rollover image. I have been trying most of the day but not getting it. Pls help Thanks for any help with this Willo I was testing a required entry form, and i'm stuck. Code: <html>
<head>
<script type="text/javascript">
function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value=="")
{
alert(alerttxt);return false;
}
else
{
return true;
}
}
}
function validate_form(thisform)
{
with (thisform)
{
if (validate_required(email,"Username must be filled out!")==false)
{username.focus();return false;}
}
}
</script>
</head>
<body>
<form action="submit.htm" onsubmit="return validate_form(this)" method="post">
Username: <input type="text" name="username" size="20">
<input type="submit" value="Submit">
</form>
</body>
</html>
i have this so far. i want to add a password part. i know i would take Code: Password: <input type="text" name="password" size="20"> and put it underneath the username part in the codes., but i don't know to do the rest, with the error message poping up. hello, Im trying to write a program when the user clicks on the button, the textbox should display "how are you ". This is what I tried : <html> <head> <title>"Click"</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </head> <body> <p> <input name="text1" type="text" id="text1" value="textbox 1" onFocus="this.style.background ='yellow'" onBlur="this.style.background='white'"> </p> <p> <input name="text2" type="text" id="text2" value="textbox 2" onFocus="this.style.background = 'yellow'" onBlur="this.style.background='white'"> </p> <p> <button onclick="textbox1.value="how are you">Click Me!</button> </p> </body> </html> i have placed a text box with onclick and onblur event. onclick shows contents(links) of a div tag below it and onblur hides the div basically it was a jquery based drop down menu but due to some problem I need to avoid jquery. Now the problem happens when a link of div tag is clicked. The link does not work due to onblur event on the textbox. Any suggestion? Quote: <input type="text" style="text-transform: capitalize;" value="" class="abd_txtfld" name="loc" id="loc" onclick="gettabcontentSearch('','')" onblur="hide()"/> <div id="cityddsearch" class="select_citydd" style="position: absolute; margin-top: 2px; left: 5px; display: none;"> <ul> <li><a href='../link1.asp'>link1</a></li> <li><a href='../link2.asp'>link2</a></li> <li><a href='../link3.asp'>link3</a></li> </ul> </div> I am having trouble understanding why this does not work? Code: <HTML>
<HEAD>
<TITLE>Event Loops</TITLE>
<SCRIPT TYPE="text/javascript">
function seturl(a,b,c,d,e)
{
this[0] = a;
this[1] = b;
this[2] = c;
this[3] = d;
this[4] = e;
}
function selectPage(list) {
var page = Math.floor(Math.random()*4);
winow.open(list[page],"Random_Page");
}
choices = seturl("http://www.google.com,
"http://www.yahoo.com,
"http://www.youtube.com,
"http://www.bing.com,
"http://www.xbox.com");
</SCRIPT>
</HEAD>
<BODY onLoad="selectPage(choices);">
<H1>Please Wait...</H1>
</BODY>
</HTML>
I sometimes see that some people use this expression: event = event || window.event Why people need to do this? What does it mean? Hi I have a requirement....I have a timer on a page. If the user leave the page (mouse goes off of that page) the timer starts and continues...and when the user comes into that page(mouse over that page) the timer goes off/STOP....Is this can be done?? using javascript??? pls help... |
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