Event Handler - Unable To Identify The Current Element
Mar 29, 2010
I'm having a problem in identifying the current element. I have a for loop, within which i'm creating a 'TD' and then a 'A' (anchor). I have added an eventListener (onclick event) to the <a>, which invokes a method. The problem is i'm unable to identify on which <a> the user has clicked. extracted code:
Code:
for(i=0; i < count; i++)
{
....
....
var td2=document.createElement('TD');
// Add title
var title = document.createElement("a");
[Code]...
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Sep 25, 2011
For lack of a better understanding/ solution I'm trying to identify if the mouse is in a specific set of elements.
The problem is that the event.pageY is never in the $Clear target? Is there some other offset value relative to headings or something. I thought this was all in absolute screen coordinates?
Also --- Is there no way to get any mousedown even outside of a form element? Seems that mousedown only returns a value for some element on the page. I would like to also trap a click anywhere on the page?..
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Sep 4, 2011
I'm basically making a form for a class and have to make it so the user can enter their mailing address or e-mail. I can make the Javascript identify errors such as missing fields, but I wan't the purpose of my radio buttons to be so that the user does not have to enter all fields depending on which radio button they select. Here is all of the code I have so far, in a basic sense that this will identify missing fields.
<html>
I'm using classes because I can't seem to get ID's to work, but the main problem is that doing it the following way makes the page skip directly to my confirmation page without ever checking the fields, so no error messages appear. This is a general sense of what I'm trying to achieve:
function validateForm()
I think more what I'm looking for is the syntax to identify the radio button status.
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Mar 31, 2010
it's possible to bind a function to an element that is fired if that element is 'moved'/repositioned via the browser.
For a more specific example what I have is a function that calculates height and width of certain elements to allow them to all fit nicely on the page without having scroll bars, and this is bound to the window onresize event. It works nicely most of the time but occasionally something will change the height of one of the elements and this effectively bumps one element right off the page.
So I'm wondering if its possible to have an event bound to an element that is fired when an elements position is moved/recalculated by the browser? Short of polling every second or so, to see if it has moved/recalculate layout.
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Jan 25, 2011
I'm designing a website and I would like to add a certain class to a navigation element based on the document title. I currently have the following javascript. The nav elements have separate ids (the About Us nav element has the id="about" and so on)
<code>
window.onload=function(){
var docTitle = document.title;
var about = document.getElementById("about");
var advising = document.getElementById("advising")
[Code]...
The problem seems to be that the if statement is true whether or not the document.title ="about" or anything else, (if I remove the return, both about us and advising elements have their class changed.
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Nov 15, 2010
I have a table with a date field in each row:
The table, and the input id element, are dynamically created from database records and I use jQuery live to initialize the datepicker for each field, like so:
The idea is that when I click in the input field, the datepicker pops up and allows the user to input a date. While the date shows in the input field in the table, the value attribute of the input field is empty. I can't use the getDate() method on the datepicker, since I can't programmatically connect the datepicker element in any particular row with the input element in that row. I tried the onClose method shown below, but that doesn't work either. Has anyone done this successfully?
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Aug 3, 2010
I need to pass the current window location through a hidden input to a php form handler. I tried this:
Code: <input type='hidden' name='curpage' value='javascript:window.location'>
And this: Code: <input type='hidden' name='curpage' value='javascript:print window.location;'>
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Mar 16, 2010
The bit of code in bold in the code below is giving me this error in IE: Error: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/4.0; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; Tablet PC 2.0; InfoPath.2; OfficeLiveConnector.1.4; .NET CLR 3.0.30729; OfficeLivePatch.1.3; MSN OptimizedIE8;ENGB)Timestamp: Tue, 16 Mar 2010 15:07:11 UTC Message: HTML Parsing Error: Unable to modify the parent container element before the child element is closed (KB927917)
[Code]....
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Jul 23, 2005
I'm seeing surprising behavior, consistent across Opera, Firefox, and IE.
An event handler is changing the value of an element, and there is apparently
no Change event being generated for the element. A simple illustration is,
make an INPUT element with an onchange; type in a new value, the Change
event handler is called. But make a button whose Click handler changes the
value, and the Change handler does not get called.
It appears that events are not generated while an event handler is running.
Can this be true?
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Aug 11, 2005
How can I interrupt the enter key so it won't trigger unwanted events on my
web page? I have tried this:
var defaultEventHandler = obj.getEvent("onkeydown");
var myEventHandler = function(event){
if(event.keyCode==13){
alert(obj.getProperty("selection/index"));
}
else{
defaultEventHandler.call(this, event);
}
}
obj.setEvent("onkeydown", myEventHandler);
But it won't even enter the function.
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Apr 5, 2011
I got following document:
When you click the main button, will one of the six images get a background image, and you can then press the image with the background image, and get your "reflextime".
But it won't work. When I press the image, were the new background image has shown, you can click on it and get your time - why?'
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Jan 12, 2006
I try to add a function to be triggered also within an event (which already has a function). I coded it, unfortunatelly one line of the code should be different for IE and Moz. I try to find a common way without using a browser detector... Any ideea? The red line works for Mozilla, the blue one for IE:
function addFunc(){
var e = document.getElementsByTagName('*');
for(var i=0;i<e.length;i++){
if(e[i].getAttribute('onclick')||e[i].getAttribute('onclick')!=null){// Moz || IE
//var f = new Function(e[i].getAttribute('onclick'));
var f = e[i].getAttribute('onclick');
e[i].onclick=function(){f();otherFunction()}
}}} Code:
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Oct 19, 2005
I have no problem attaching an event handler to a single anchor labelled with an id. But I can't get the following to work on all anchors, meaning nothing happens. Any idea about what's wrong here? Code:
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Dec 14, 2006
Im using onKeyUp on a text input field and everytime some information is gathered from a database through ajax.
Is there anyway to cancel onKeyUp events that are within X seconds of the previous event trigger? I dont want to use setTimeout because i dont want them called at all.
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Jan 11, 2010
I modified a particular page in the following way:
I ran an init function on window.onload, which iterated thorugh the checkboxes on the page and assigned an event handler function - let's call it validate() to each checkbox.
I tested it in the big 5 browsers and ran into a strange issue in I.E. only -
let's say there are the following checkboxes code...
When I click on "box1" the function is not called. When check "box2" the function is called but by "box1", when I click on "box3" the function is called by "box2" and so forth...
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Sep 12, 2011
Below is HTML
<DIV class=info-box>
<DIV class=info-list>
<UL>
<LI>Author <SPAN></SPAN></LI>
[Code]....
I want hidecurrent LI element if SPAN doesnot contain anytext, Author doesnot having value so that will be hidden.
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Nov 22, 2006
I'm trying to dynamically create an image map for a particular image on my website, and I'm running into an issue where I try to register the "mouseover" and "mouseout" events for the AREAs of my image map.
Here is an abbreviated version of my code:
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Jul 20, 2005
I want to change the event handler for a form field, using JS code. But
there doesn't seem to be a way to reference it. MyForm.SomeField.onChange
is undefined. Anyone know if there's a way to do this?
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Jul 11, 2010
I've many div with sequence of ids like d1 d2 d3 ... and I need to listen to their click event so I'm using a loop to add an event handler to them, Here it's my code:
for(var i = 0; i < $ds.length; i++){
var $d = $ds[i];
var xFunc = function(e){
document.title = "d: "+$d;
[Code]....
But when I click on each of them always the title goes to "d: 4" where 4 is the last value in $ds.
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Sep 17, 2010
I'm creating a drop down menu so that when a user clicks on the drop down arrow and then hovers over one of the options, a bubble comes up and does a validation. The thing is that everything works fine in Firefox, but not in IE or Chrome. The problem is that the .mouseover() function doesn't work on the <option> tags in IE and Chrome, but it works fine in Firefox because apparently FF is the only browser that supports it.
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Jun 9, 2009
<label id="mylabel" onclick="myOnclickFunction()">My Label</label>
How to get the "myOnclickFunction()" _string_ with jQuery? JavaScript getAttribute("onclick") works fine, but I want to do it through jQuery.
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May 8, 2011
I have a form with a text box. As you know, if a user has previously entered data into that text box from the same machine, then a dropdown list appears in the browser showing previously entered values. That's fine; however I have an OnKeyUp event on this box so if a user selects from the dropdown list then the event isn't triggered. Is there any way to recognise this action as an event? None of the normal event handlers appear to do it.
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Mar 25, 2011
i have registered a validation function as the onclick event handler. It runs for the first time but does not run when i click on the button the second time. ( this is because i have put an aert box in the validation function and it does not show up when i click on the submit button for the second time)
here is the code
Code:
<input type="submit" value="Submit" action="submit.php " onClick="return validate('add_item_form');">
Code:
function validate(form_name){
validate=1;
string="";
[Code]....
when i leave all the fields of the form blank then the error message is displayed. But when i click on the submit button again then the validation function does not run.
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Feb 19, 2010
I am working on a project that takes links on a page (Not all, depends on if they are Merchandise links or partner links), and passes some parameters to a tracking js call.The problem is, I don't want to put 'onclicks" on every href as there could be a hundred on a page and many of the links are dynamically generated on the backend.So, I was thinking of creating a function that took in parameters from each of the links that are pressed. we have two links (there will be many more, but for an example sake).
<a href="somelink.html" id="linka">link a</a>
<javascript>
var cu = new Linktracker({
[code]...
Should I use just "bind" or "bindAsEventListener"?Since each link on the page is unique and will pass different values, what is the best way to do this without putting "onclicks" on every link?
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Apr 28, 2011
I'm having trouble passing an array into an event handler.This does not work:
var lightbulb = [1,1,1,0,1,0]
var banana = [0,0,1,1,0,1]
function changetextimage(arr){
[code]....
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Aug 8, 2011
I know that there are two ways to declare an event in javascript. code...
Now, how can the second method work with functions that have parameters??? Since we can't use parenthesis, how do we pass in the arguments?!
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