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JavaScript - Problem In Ajax
hi everyone..
i am using ajax to change the banner background while pressing on refresh Note:it must be a background image because i will display data from database... http://www.graphicano.com/isis/nile_crown2.php please look at this link... my problem is: when i press refresh button in Firefox browser it changes the background and on pressing refresh again the background will change but in internet explorer 8.0 it changes the background only for the first time and on pressing refresh again the background will not change. how i can fix this problem ?? i want the user to press refresh at any time and the background will change.. not only for the first time? at the same time it must be a background image because i will display text from database... Similar TutorialsI have the following ajax code: Quote: ............. ............. ............. XHR.createXMLHttp(); XHR.open("POST", "/cgi-bin/addpost.cgi", true); XHR.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); XHR.onreadystatechange = function() { if (XHR.readyState == 4) { if (XHR.status == 200) { alert("Operazione effettuata con successo"); } else { alert("Operazione non riuscita"); } } } XHR.send(url); The function send data, but it don't return never alert windows. Where is the problem? Firstly I apologize if this is the wrong forum, I wasn't too sure of where to post it as my problem covers several areas. I have been writing a 'Facebook Application' which is primarily in PHP. It is about the economics of futuristic spaceship production. I have done the bulk of the game mechanics in PHP and have set about making the interface. I am stuck on a page which can be viewed here where you can employ workers to work in your mines/factories. Each worker has five skill types (worker, miner, manager etc...) and to be employed he must be offered a contract for one of those skills. The process of employing someone works like this. 1. You search for the 'type' of worker you want. 2. Search Results are shown. 3. You click on the name of the person you want to employ. 4. A new form appears (under the table) for you to fill in the contract details. 5. The person (PHP function!) rejects or accepts the contract. If you look at the link above you will see I've made a search box which uses AJAX/html/php to make the table (which I'm quite proud of as I'm a bit of a noob when it comes to javascript/ajax). Ive come unstuck as to how to select which worker to offer a contract to. What needs to happen is: 1. The name or a tick box is selected. 2. It sends some form of unique identifier back to the same page so the form (to offer a contract) knows which person in the table is being referred to *preferably without a page refresh*. Any help/advice would be greatly appreciated. I'm assuming I'm going to need to use some form of get/post and ajax but i cant figure out how to do it. I hope all this makes sense. Right i'm having trouble with a Ajax refresh external page script. Code: <script type="text/javascript">
function Ajax()
{
var
$http,
$self = arguments.callee;
if (window.XMLHttpRequest) {
$http = new XMLHttpRequest();
} else if (window.ActiveXObject) {
try {
$http = new ActiveXObject('Msxml2.XMLHTTP');
} catch(e) {
$http = new ActiveXObject('Microsoft.XMLHTTP');
}
}
if ($http) {
$http.onreadystatechange = function()
{
if (/4|^complete$/.test($http.readyState)) {
document.getElementById('ReloadThis').innerHTML = $http.responseText;
setTimeout(function(){$self();}, 1000);
}
};
$http.open('GET', 'stats.php' + '?' + new Date().getTime(), true);
$http.send(null);
}
}
</script>
<script type="text/javascript">
setTimeout(function() {Ajax();}, 1000);
</script>
<div id="ReloadThis">
Loading....
</div>
That's what i'm currently using, but everytime it refresh's it well, i've got a marquee in the stats.php file & i want it to refresh every second but the marquee jumps back to the right and starts again i want a Ajax script that dont affect the external data that load's like facebook does. Can anyone help? Thanks... Hi Chaps, I'm trying to get a AJAX script to work, but am having problems. I have a page with two dropdown menus, the idea is that the first dropdown [customers] will then filter the options of the second [contacts]: //DROPDOWN.PHP PHP Code: <form method="post" action=""> <select name="customer" onChange="ContactGrab('."'".'ajaxcalling.php?id='."'".'+this.value);"> <option value="">Select Customer</option> <?php do { ?> <?php echo "<option value=".'"'.$row_rsCustomer['custid'].'" >'.$row_rsCustomer['custname']."</option>";?> <?php } while ($row_rsCustomer = mysql_fetch_assoc($rsCustomer)); $rows = mysql_num_rows($rsCustomer); if($rows > 0) { mysql_data_seek($rsCustomer, 0); $row_rsCustomer = mysql_fetch_assoc($rsCustomer); } ?> </select><br /> <div id="details"> <select name="details"> <option value="">Select Contact</option> <?php do { ?> <option value="<?php echo $row_rsContact['contactname']?>"><?php echo $row_rsContact['contactname']?></option> <?php } while ($row_rsContact = mysql_fetch_assoc($rsContact)); $rows = mysql_num_rows($rsContact); if($rows > 0) { mysql_data_seek($rsContact, 0); $row_rsContact = mysql_fetch_assoc($rsContact); } ?> </select> </div> </form> The OnChange action should call the AJAXCALLING.PHP page, where the other select options are filtered, by column [FK_custid] //AJAXCALLING.PHP PHP Code: <select name="details"> <option value="">Select Contact</option> <?php do { ?> <option value="<?php echo $row_rsContact['contactid']?>"><?php echo $row_rsContact['contactname']?></option> <?php } while ($row_rsContact = mysql_fetch_assoc($rsContact)); $rows = mysql_num_rows($rsContact); if($rows > 0) { mysql_data_seek($rsContact, 0); $row_rsContact = mysql_fetch_assoc($rsContact); } ?> </select> This is powered by the AJAXSCRIPT.JS page Code: function CreateXmlHttpObject() { //fuction to return the xml http object
var xmlhttp=false;
try{
xmlhttp=new XMLHttpRequest();//creates a new ajax object
}
catch(e) {
try{
xmlhttp= new ActiveXObject("Microsoft.XMLHTTP");//this is for IE browser
}
catch(e){
try{
req = new ActiveXObject("Msxml2.XMLHTTP");//this is for IE browser
}
catch(e1){
xmlhttp=false;//error creating object
}
}
}
return xmlhttp;
}
function CategoryGrab(strURL)
{
var req = CreateXmlHttpObject(); // fuction to get xmlhttp object
if (req)
{
req.onreadystatechange = function()
{
if (req.readyState == 4) { //data is retrieved from server
if (req.status == 200) { // which reprents ok status
document.getElementById('details').innerHTML=req.responseText;//put the results of the requests in or element
}
else
{
alert("There was a problem while using XMLHTTP:\n");
}
}
}
req.open("GET", strURL, true); //open url using get method
req.send(null);//send the results
}
}
My problem is that when I open the dropdown.php page, the browser status says 'Done, but with errors on the page' and the second dropdown isn't filtering. I can get rid of the status warning by removing: Quote: ...onChange="ContactGrab('."'".'ajaxcalling.php?id='."'".'+this.value);"> But obviously that is something that is needed to pass the [custid] in the URL parameter.... Can anyone help me on this, as I haven't got a clue what I'm missing or where I have gone wrong! I'm a newbie so excuse me if question could be stupid I have a webpage where i have placed a form html with recaptcha validation I have grabbed on the net following code : Code: Code: <script type="text/javascript">
function validateCaptcha()
{
challengeField = $("input#recaptcha_challenge_field").val();
responseField = $("input#recaptcha_response_field").val();
//alert(challengeField);
//alert(responseField);
//return false;
var html = $.ajax({
type: "POST",
url: "http://mysite.com/script.php",
data: "recaptcha_challenge_field=" + challengeField + "&recaptcha_response_field=" + responseField,
async: false
}).responseText;
if (html.replace(/^\s+|\s+$/, '') == "success")
{
$("#show").html("Success. Submitting form.");
return false;
// Uncomment the following line in your application
//return true;
}
else
{
$("#show").html("Your captcha is incorrect. Please try again");
Recaptcha.reload();
return false;
}
}
</script>
and form html: Code: Code: <form action="#" method="post" onSubmit="return validateCaptcha()">
<p><?php echo recaptcha_get_html($publickey);?></p>
<p style="color: red;" id="show"> </p>
<input type="submit" name="Submit" value="Submit">
</form>
On the file: script.php i have placed php code: PHP Code: PHP Code: <?php require_once('controllers/recaptchalib.php'); $privatekey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; # was there a reCAPTCHA response? { $response = recaptcha_check_answer ($privatekey, $_SERVER["REMOTE_ADDR"], $_POST["recaptcha_challenge_field"], $_POST["recaptcha_response_field"]); if (!$response->is_valid) { echo 'ERROR: The recaptcha code was not entered correctly or expired.'; die; } else echo "success"; } ?> the code work but i don't want display in my webpage only messages: "Your captcha is incorrect. Please try again" if code is incorrect and "Success. Submitting form." if code is correct. But if the code is correct i want display under sentence "Success. Submitting form." the content of script.php ie print a table or whatever script contain obviously without reloading webpage or redirect to another page How to? thanks Hello, Currently, i am working on a website. I need that when the data comes from ajax in the div or span tag, it should take space by moving down the data already present there without overwriting it. But it doesnot happens. When i get data through ajax, then it overwirtes the previous data which was already present there and doesnot move the previous data downwards. Any help plz i have used a an ajax xml ticker script in my webpage here's the link to the page where i got the script : http://www.dynamicdrive.com/dynamicindex2/cmarquee2.htm The problem is as soon as it reaches the end of the content, It does not cycle up to the first news item immediately there is a gap of few seconds before starts showing the items again. Dear forum guys, I'm having a problem regarding the POST method with Ajax. I'm sending form inputs through Ajax by POST method to an ASP file to add them back to a database. However, what i noticed is that whenever i send the inputs of the form let's say ("username") through Ajax by the POST method, the result is the input "username" however with no spaces. Why is it that the Ajax POST method ignores the spaces and sends the inputs without the spaces? I tried it with the GET method and found out that GET doesn't ignore the spaces, it worked. But the application that i'm trying to build requires sending bigger data that the GET method can't send. SO therefore i need the POST method but i ran into the problem of Spaces Being Ignored. Please, is there a way to send any string that contains spaces through AJAX POST method and not ignore the spaces in the output??? Thank You David All, I am trying to create a page for a application that uses a technique where a page refresh is generated by an ajax call followed by an innerhtml replace on the main page div. Unfortunately this strange way of refreshing pages is leading to an issue with an image I am trying to display. Every time it refreshes the images flashes off and then is redisplayed, there are other elements on the page( smaller images, text etc... ) and they do not seem to be affected. The image is not large, only 23 k, but it is the only one affected. If I run the page on firefox I do not encounter this issue which makes me think that is a lovely IE feature that forces the image to be retrived from the server on every innerhtml replace instead of from the cache. I am using IE8 to test this, any suggestions are greatly appreciated as I have been trying to fix this for a while. Thanks, N Edit: Nevermind
I am using this code... simplified for example Code: [
<script type="text/javascript">
function loadContent(elementSelector, sourceURL) {
$(""+elementSelector+"").load(""+sourceURL+"");
}
</script>
<a onclick="loadContent('#content', 'http://www.website.com/includes/content.php');"
<div id="content"></div>
Works fine if run on http://www.website.com but not on http://www.website.com/home/sitepage. I have spent a few hours and cannot figure it out. Can anyone? Thanks Hey, as the subject says... I'm struggling to call other external files from within a file, requested by an Ajax.Request. It's bascically a request to call a file that updates a mysql database, and I want to include my database connection php file so I don't have to keep repeating my connection settings. here is the request: Code: new Ajax.Request('tools/server_reorder_list.php', options);
and within that file I'm trying to do something like this: Code: include ("../config/dbconnect.php");
$i=1;
foreach($_POST['item_list'] as $key=>$value) {
mysql_query("UPDATE `cs_pages` SET `position`='".$i."' WHERE id_page ='".$value."'");
$i++;
}
I've tried all kinds of ways to include the files, from the above, to typing the entire path. The only way I can get this request to work is by actually typing my connection settings in the requested file. Any help greatly appreciated. Thanks! hello, can anyone help me with a javascript-php-ajax problem? I have created a table with checkboxes and whenever an ajax function is called to refresh, the checkboxes that were highlighted and checked get reset, here is my javascript for the check function: $(document).ready(function() { $("#checkall").live('click',function(event){ $('input:checkbox:not(#checkall)').attr('checked',this.checked); //To Highlight if ($(this).attr("checked") == true) { //$(this).parents('table:eq(0)').find('tr:not(#chkrow)').css("background-color","#FF3700"); $("#policy").find('tr:not(#chkrow)').css("background-color","#FC9A01"); } else { //$(this).parents('table:eq(0)').find('tr:not(#chkrow)').css("background-color","#fff"); $("#policy").find('tr:not(#chkrow)').css("background-color","#FFF"); $("#policy").find('tr.alt:not(#chkrow)').css("background-color","#EAF2D3"); } }); $('input:checkbox:not(#checkall)').live('click',function(event) { if($("#checkall").attr('checked') == true && this.checked == false) { $("#checkall").attr('checked',false); $(this).closest('tr').css("background-color","#ffffff"); } if(this.checked == true) { $(this).closest('tr').css("background-color","#FC9A01"); CheckSelectAll(); } if(this.checked == false) { $(this).closest('tr').css("background-color","#ffffff"); $(this).closest('tr.alt').css("background-color","#EAF2D3"); } }); function CheckSelectAll() { var flag = true; $('input:checkbox:not(#checkall)').each(function() { if(this.checked == false) flag = false; }); $("#checkall").attr('checked',flag); } }); Hi, I have a problem with sending data from a form to a php script with AJAX. To test if it works, I try to send data from the form, print it in the php with "echo", and then put it back in the initial html file. My Javascript code is: Code: function registerPrivateUser()
{
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
{
alert ("Your browser does not support AJAX!");
return;
}
var postData="firstName="+ document.getElementById("txtFirstName").value;
var url="classes/users/checkRegistration.php";
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("POST",url,true);
//xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
xmlhttp.send(postData);
}
The function stateChanged, basically says: Code: if (xmlhttp.readyState==4)
{
var strResponse;
strResponse=xmlhttp.responseText;
alert('Response:' + xmlhttp.responseText);
}
checkRegistration.php looks like this: PHP Code: <? session_start(); $firstName=$_POST['firstName']; echo($firstName); ?> The problem is that the response is empty, but I don't know why. I have checked the input data and the postData variable says "firstName="+input (e.g. "firstName=Robert"), so that's not the error. I have read several forum posts here, but still haven't figured out what I'm doing wrong. If anyone could please tell me, I would appreciate it alot. Hi, I am hoping I just need to be pointed in the right direction with this. I have Page1. When Page1 body onloads it uses Ajax to call PartA Within PartA I have a message board so members can write messages which will be sent to my database in PartA[1] and immediately posted for view on to PartA[2]. As I want to have my request to the server updating regularly I want to have PartA[2] on a timed loop to refresh - I do not need the content of PartA[1] to refresh. So the order of events would look like this: Page1 | onload call | v PartA / \ V V PartA[1] PartA[2] (loads once) (constantly refreshes) What I am not sure about is that I have <body> and <head> attributes in Page1 only. I have already used my body onload to call PartA (and can't use it to call PartA[2] before PartA has loaded anyway). I do not want the user to have to click a button or do anything to call up PartA[2]. So my question is how would I get PartA[2] to automatically load within PartA? I hope I have made this clear, but if I haven't let me know and I will try again. i have a html wich i am working on .. Code: <html>
<head>
<script language="Javascript">
function xmlhttpPost(strURL) {
var xmlHttpReq = false;
var self = this;
// Mozilla/Safari
if (window.XMLHttpRequest) {
self.xmlHttpReq = new XMLHttpRequest();
}
// IE
else if (window.ActiveXObject) {
self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
}
self.xmlHttpReq.open('POST', strURL, true);
self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
self.xmlHttpReq.onreadystatechange = function() {
if (self.xmlHttpReq.readyState == 4) {
updatepage(self.xmlHttpReq.responseText);
}
}
self.xmlHttpReq.send(getquerystring());
}
function getquerystring() {
var form = document.forms['f1'];
var username = form.username.value;
qstr = 'u=' + escape(username);
return qstr;
}
function updatepage(str){
var s = str;
var a = s.split(',');
var a1 = a[0];
var a1_1 = a[1];
var a2 = a[2];
var a2_1 = a[3];
var a3 = a[4];
var a3_1 = a[5];
var a4 = a[6];
var a4_1 = a[7];
var a5 = a[8];
var a5_1 = a[9];
var a6 = a[10];
var a6_1 = a[11];
var a7 = a[12];
var a7_1 = a[13];
var a8 = a[14];
var a8_1 = a[15];
var a9 = a[16];
var a9_1 = a[17];
var a0 = a[18];
var a0_1 = a[19];
var form = document.forms['f1'];
form.result1.value = a1;
form.result1_1.value = a1_1;
form.result2.value = a2;
form.result2_1.value = a2_1;
form.result3.value = a3;
form.result3_1.value = a3_1;
form.result4.value = a4;
form.result4_1.value = a4_1;
form.result5.value = a5;
form.result5_1.value = a5_1;
form.result6.value = a6;
form.result6_1.value = a6_1;
form.result7.value = a7;
form.result7_1.value = a7_1;
form.result8.value = a8;
form.result8_1.value = a8_1;
form.result9.value = a9;
form.result9_1.value = a9_1;
form.result0.value = a0;
form.result0_1.value = a0_1;
}
</script>
</head>
<body>
<form name="f1">
<p>Username: <input name="username" type="text" id="username">
<p>Password: <input name="password" type="text" id="password">
<input value="Go" type="button" onclick='JavaScript:xmlhttpPost("/cgi-bin/3sms/smscontacts.pl")'></p>
<input name="result1" type="text" id="result1" size="18" maxlength="25">
<input name="result1_1" type="text" id="result1_1" size="11" maxlength="11"><p>
<input name="result2" type="text" id="result2" size="18" maxlength="25">
<input name="result2_1" type="text" id="result2_1" size="11" maxlength="11"><p>
<input name="result3" type="text" id="result3" size="18" maxlength="25">
<input name="result3_1" type="text" id="result3_1" size="11" maxlength="11"><p>
<input name="result4" type="text" id="result4" size="18" maxlength="25">
<input name="result4_1" type="text" id="result4_1" size="11" maxlength="11"><p>
<input name="result5" type="text" id="result5" size="18" maxlength="25">
<input name="result5_1" type="text" id="result5_1" size="11" maxlength="11"><p>
<input name="result6" type="text" id="result6" size="18" maxlength="25">
<input name="result6_1" type="text" id="result6_1" size="11" maxlength="11"><p>
<input name="result7" type="text" id="result7" size="18" maxlength="25">
<input name="result7_1" type="text" id="result7_1" size="11" maxlength="11"><p>
<input name="result8" type="text" id="result8" size="18" maxlength="25">
<input name="result8_1" type="text" id="result8_1" size="11" maxlength="11"><p>
<input name="result9" type="text" id="result9" size="18" maxlength="25">
<input name="result9_1" type="text" id="result9_1" size="11" maxlength="11"><p>
<input name="result0" type="text" id="result0" size="18" maxlength="25">
<input name="result0_1" type="text" id="result0_1" size="11" maxlength="11"><p>
</div>
</form>
</body>
</html>
now my problem is the password is not sent to the perl script i basicly modified an ajax from another form to do this form. when the "go" is pressed the username is sent and a string is recived and devided into the form inputs.. all i need to do now is send the password along with the username the username variable is "u" i would like the password variable to be "p" any ideas hi; This is my first post and am abit stuck. I used JQuery AJAX to get data from a different page and show it in my div. This all works fine but now i want the page collected by AJAX to execute a Javascript function which is in the page which request the AJAX page. I have this so far but its not working. This is in the AJAX-ed page. Code: <a href="#" onClick="change_postcode(prompt('Please Enter Your Postcode', 'SW10')");
)">SW10</a>
And the page which requested the AJAX page. Code: <script type="text/javascript">
function change_postcode(postcode){
$('#view8').html('<p><img src="http://www.MySite.com/images/loading.gif"/><br />Loading! Please Wait...</p>');
$('#view8').load("http://www.mywebsite.com/include.php?inc=Events&when=&postcode="+postcode);
}</script>
I though about using top but that didn't work. Code: <a href="#" onClick="top.change_postcode(prompt('Please Enter Your Postcode', 'SW10')");
)">SW10</a>
How can i get my AJAX page to execute a Javascript function which is in the page which contains the the AJAX page. Thankyou all for reading my post Paul P.S Am very sorry for my way with words. I was wondering if someone would have the time to talk and help explain some Ajax things to me... slowly. I'm trying to make my web sites more dynamic. Like I just need someone I can bounce ideas off and they can walk me through step by step on how to do them. Thanks Shelby |
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