i have two links,i left the second one alone so you can see what result i want. but the first link is where i am attempting to remove the inline event handler (onclick) but i want the same result.
View 1 RepliesI 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;'>
I am trying to extract the value from a selected item in a Select/Option, parse it server side using asp and then populate a text box on the same page with the value that was parsed. simple example below:
Two problems I have here:
1. The code: this.frmEditUser.Submit; does not appear to submit the form.
2. If I submit the form using the Submit button, it works except I get:
why I should use the dom level 2 event handling over inline events like ...
Code HTML4Strict:
<a href="http://www.yahoo.com" onClick="myFunction()">click me</a>
I work in a team of developers and our pages are dynamically created using Java.I can at any moment change the inline JS across a site due to this so changes are easier then if the site was just static HTML.As far as reasons to use dom 2 over inline, I looking for something beyond:
it separates behavior from html
it is a best practice
it is the 'modern' way of doing it
I need facts that explain why it is a best practice or why 'modern' is better like : you can only assign one function action to the event.That was just an example which I see but is not true to me.I can either assign multiple functions to it like:
Code HTML4Strict:
<a href="http://www.yahoo.com" onClick="myFunctionA();myFunctionB();myFunctionC()">click me</a>
or I can call my functions from a single function call like
Code HTML4Strict: <a href="http://www.yahoo.com" onClick="myMultiFunctionCall()">click me</a>
and then have a function defined before the inline call like
Code JavaScript:
function myMultiFunctionCall()
{[code].....
Here the second statement overwrites the first.By the way, here is a con for using dom and to me a big one considering debugging: you can't see what event handlers are assigned to what unlike inline where it is obvious because it is in the page. see http:[url].......
I've been teaching myself javascript and I'm a bit confused about the whole events business. I've been reading the Sitepoint book (among a bunch of others) and when it gets to Ch 4 things get down right confusing. They claim that inline event handlers are "so 1998", something I've heard before and then they proceed to write some pretty complex library files to get around the fact that IE <= 7 doesn't support much of the alternative ways of handling events--a familiar enough story. Anyhow, it seems that many many tutorials all over the internet (and countless pages) resort to inline event handlers as the standard. So, I'm confused. I obviously need to know inline event handlers if I intend to work as a web developer even though it's so 1998. Obviously inline even handlers are not quite on par with inline font attributes and transparent gif files despite the language one often hears. Can someone set me straight, and if possible suggest a brilliant tutorial, book chapter, or website that lays everything crystal clear for me?
View 14 Replies View RelatedI am trying to re-write a script that I found on w3schools. The script should check whether ALT key was pressed or not. My objective is not to use any inline scripts and to refer to the event within a function. My script is not working.
<code>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">[code].......
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?
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.
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?'
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:
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:
View 1 Replies View RelatedIm 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.
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...
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:
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?
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.
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.
View 3 Replies View Related<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.
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.
View 6 Replies View Relatedi 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.
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?
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]....
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?!
I'm use prototype quite a lot for ajax calls, but have always used inline onclicks. I'm trying to be less obtrusive by creating event handlers/listeners.I used to do this with the aid of pHp to place arguments into the function (usually via 'while loop'):
<li><a href="#" onclick="dofunction(arg1,arg2);">item 1</a></li>
<li><a href="#" onclick="dofunction(arg1,arg2);">item 2</a></li>
<li><a href="#" onclick="dofunction(arg1,arg2);">item 3</a></li>
[code]....
As far as readability and consistency, which is better in your opinion (or if functional difference, that I didn't account for,)
Event.observe($('txtName'), 'keypress', handleKeyPress);
Choose one:
A.
Code:
function handleKeyPress(event) {
alert(event.keyCode);
}
B.
Code:
function handleKeyPress(evt) {
evt = evt || window.event;
alert(evt.keyCode);
}
C.
Code:
function handleKeyPress(evt) {
evt = evt ? evt : window.event;
alert(evt.keyCode);
}
I've successfully used the Random-Order javascript on my site for years to shuffle around a number of banners on my main page.I now want to add an onClick event handler to each banner so that I can use Google Analytics to track those exit links, but I can't get the script to work when adding the onClick; the banners just don't show up on the webpage then. I'm pretty sure that some coding needs to happen in the function area below the content section, that just putting the onClick in each item won't do it, but I don't write this stuff, so I have no clue what to do to make it work right. Here's the script WITH the onClick code I would like to add in red. If you were to remove everything in red, the remaining code would be exactly as it currently appears on my site and works properly. [code]
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