Simple XmlHttpObject - Alert Returns A Value Of Null
Feb 10, 2010
When using the code below the alert returns a value of null. In the past this has never happened, it has always returned the xml file I'm requesting. I have noticed a strange difference between browsers. This script is used to fill a form automatically. In its current state it works perfectly in opera, but does not work in firefox or IE (used to work in all the browsers). I'm by no means a javascript expert, am I missing something here?
I have a following string: var myHTML = "<html><body>testing hope this work in html</body></html>"; alert($(myHTML).children("body").html()); Why does the alert return NULL, instead of "testing hope this work in html" ???
HTML Code:<div class="drag q1 bar" style="top: 10px; left: 0px; position: absolute;">b</div>i assign variables like so:
Code: var style = notationrow[i].childNodes[nodecount].getAttribute("style"); var nodeclass = notationrow[i].childNodes[nodecount].getAttribute("class");
Suppose I have the following inside a function:Code JavaScript:document.getElementById('display_content').innerHTML = "hello";The above works.However, when I define it like the following it says display_content is null on firefox error console.
Code JavaScript: var display_content = document.getElementById('display_content');
This seemed like it should be so simple. It works fine in Firefox, but not in IE. The goal is to disable the form's Submit button, until the question is answered. (The alert is for troubleshooting.)
I have a form in which I preset some text inside a readonly, disabled textarea using javascript ('data' being the text): document.getElementById("link_of_current_view2").value = data;
However, once I call my .php script to process the form, the element is null. How do I get it to pass along that data, which is in the textbox when the user views the form? <div id="sendlink" class="contact_form" style="z-index:10;"> <a class="close" onclick="document.sendlink_form.reset();return false">CLOSE</a> <form id='sendlink_form' name='sendlink_form' method="post" action="sendlink.php" > <label for="link_of_current_view2">Link: </label> <textarea id="link_of_current_view2" name="_of_current_view2" class="link_of_current_view" rows="2" disabled="disabled" wrap="soft" size="58" value="" readonly="readonly" value=/>
It's purpose is to check for valid date and allows formats mm/dd/yyyy, m/dd/yyyy, mm/d/yyyy or m/d/yyyy.
When I try it with the code below it always returns null.
Code:
function isValidDate(/* String */ p1_date) { var x = "^(((0?[1-9]|1[012])/(0?[1-9]|1d|2[0-8])|(0?[13456789]|1[012])/(29|30)|(0?[13578]|1[02])/31)/(19|[2-9]d)d{2}|0?2/29/((19|[2-9]d)(0[48]|[2468][048]|[13579][26])|(([2468][048]|[3579][26])00)))$";
I'm using the $F of the prototype library to send data through the Ajax Request. I'm having problems using the $F to reference fields sent back through an original Request. My first request sends a form back to the user in the type such as <input text name=foo> and at the bottom of the returned form I have a second ajax call to send the fresh data to the another script. The problem is that the new data in the form cannot be referenced from $F. My question is how can I pass the new data in the javascript to another Ajax call either by $F or by other means?
I'm trying to retrieve some data trough yahoo pipes, but it always returns null. However if i go to my yahoo pipe's site and i launch it, the pipe works perfectly.[code]
looking for some help regarding responseText, so please have a look :) im so mad right now because i have been struggeling for hours :(XMLHttpRequestObject.responseText returns correct value when i do alert(XMLHttpRequestObject.responseText); see linevar fnWhenDone = function (XMLHttpRequestObject) { alert(XMLHttpRequestObject.responseText); };But problem is that i want to save down the response to a variable... so i try to change it into var fnWhenDone = function (XMLHttpRequestObject) { varTest = XMLHttpRequestObject.responseText; };When i try to alert varTest later i get "Undifined"... im pretty new to javascript and have been stuck for hours ...See full code below
var myConn = new XHConn(); if (!myConn) { alert("XMLHTTP not available. Try a newer/better browser."); } var fnWhenDone = function (XMLHttpRequestObject) { alert(XMLHttpRequestObject.responseText); };
I have a simple form here with a function to validate it, but I have no idea where I'm going wrong. I'm very familiar with ActionScript and C++, so I get the coding aspect of it, but one thing I'm not familiar with is how exactly JavaScript and HTML communicate. The problem is that this form always submits, even if my function returns false...but I can't even see if it returns false anyway, because alert() doesn't seem to be working either.
I'm doing some simple tests and I can't get this to work on a wordpress site. Basically I'm trying to fadeOut a div with id of "box" when a link is clicked. I mentioned Wordpress because the head code is loaded dynamically into the page template, as well as the body content. I wasn't sure I this made a difference in diagnosing the problem. When I load the page, Firebug keeps giving an error... $('a') is null
Here is my stripped html code... <head> <script src="[URL]" type="text/javascript"></script> <style type="text/css"> #box {background-color: red; width: 300px; height: 300px;} </style> <script type="text/javascript"> $(function() { $('a').click(function() { $('#box').fadeOut(); }); }); </script> </head> <body> <div id="box"> </div> <a href="#">Fade Out</a> </body>
What I have is a link 'What is this?' and I want, when clicked upon, for an alert box to popup. I should be able to specify the text contained in the alert box, and for there to just be one button, an 'OK' button. I'm sure this is quite easy, I'm guessing it's something to do with onclick= but I'm not sure about these things. Please could someone point me in the right direction as to what I could do here?
I spent 2 hours trying everything, but I still can't get it to work. <html> <head> <title>Hi</title> <script type="javascript"> var outcome1 = form.YesNo.value
if (outcome1 == no) { var formResult = no } else {
In Salesforce, I am adding what they call an "S-Control" via HTML/JavaScript that will display an alert if certain field criteria are met. The alert would be a reminder to hit the "Submit for Approval" button if the Quote Estimate is equal to or greater than $50,000. For testing purposes I added another criteria, that the Opportunity name must = Test and Stage must = Proposal/Price Quote.
Here's what I've come up with so far, taking from other examples, but I receive no alert
I was trying to create JavaScript error handling for a form, and I was trying to get an error message to show up underneath the field where there was an error. (I am trying to avoid alert boxes.) I only have two fields, and my problem is that only one field is showing an error message. If I place an error in the input for the second field, the error shows up under the first field. How can I get the error messages to show up under the correct form field?
In the below code, the alert message returns in one instance: 'someAnimal is [Mammal "Mr. Biggles"]' I don't understand how this is possible. We pass as an argument 'Mr. Biggles' to the Mammal constructor. Then assign it to the object name property. But then it ends there. There is a function called toString which will return the alert. But the toString function is not being called like this: alert('someAnimal is '+someAnimal.toString()); If it was like how it is above, it would make sense to me but now it makes no sense to me because I don't see where that toString() is being called - I only see that it is prototyped to the Mammal object.
Code: function Mammal(name){ this.name=name; this.offspring=[]; } Mammal.prototype.haveABaby=function(){ var newBaby=new Mammal("Baby "+this.name); this.offspring.push(newBaby); [Code]....
