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JavaScript - Multiple Onload Event Issue
Good morning guys.
I am new to Javascript and am trying to add some functionality to a website but have come across a problem when trying to utilise two seperate Javascript onloads events. I have a text scroller to display the latest news and I also have a javascript lightbox gallery. Both of these events work perfectly on their own but when I try to include both on one page only one of the events is executed. My code is displayed below: Code: <script type="text/javascript" src="js/prototype.js"></script>
<script type="text/javascript" src="js/scriptaculous.js?load=effects,builder"></script>
<script type="text/javascript" src="js/lightbox.js"></script>
<script type="text/javascript" src="js/jquery-1.2.6.pack.js"></script>
<script type="text/javascript" src="js/jquery.li-scroller.1.0.js"></script>
<script type="text/javascript">
$(function(){
$("ul#news-scroller").liScroll({travelocity: 0.04});
});
</script>
</head>
<body onload="clickMenu('gallery'); initLightbox()">
If anyone could tell me where my mistake is I would be so grateful. I know it is probably a really obvious mistake but being new to this I am unsure where to start looking. Thanks in advance! Mack Similar TutorialsHello Can anyone help with the following problem On the following page http://www.stroudskittles.co.uk/signingon.html I have a Body onload event (to load the chained Menu) and a windows.onload event (to load the IFrame Ticker) If I open the page in Internet explorer both scripts function; however in Firefox I'm having problems. The Chained Menu works, however the IFrame Ticker does not display. Both events ahave ben placed on the boady tag. Can anyone advise how I can get both to display in Firefox Can anyone I have an aspx with javascript, and I used to call a script func whenever the page was loaded. Suddenly it doesn't work. I then tried to simplify things to <body onload="alert('hello');" and no alert is shown, nor do I get any error. How come the onload event doesn't fire? How do I fix it? thanks in advance Greetings! Im new in JS, I have two sets of codes and I searched that JS code will not execute if there is two onload event at the same time. How can I get rid of these here are my codes from http://code.jquery.com/jquery-1.6.3.min.js http://ajax.googleapis.com/ajax/libs.../jquery.min.js Code: else if(c.attachEvent){c.attachEvent("onreadystatechange",B),a.attachEvent("onload",e.ready);
and Code: else if(c.attachEvent){c.attachEvent("onreadystatechange",C),a.attachEvent("onload",e.ready);
Is it possible to combine the two? any help will be appreciated. If I use a window opener to open a new window, is there a way to detect that the new window is finished loading before carrying out some other directive in the opener window? Can I access the remote window's onload event from the opener window? I need to know that the website has loaded before moving to the next page. something like: remoteWindow.onload = goToPage(url); Is this even possible? I have the following javascript function: [ function addNewWindowEvent(evType, fn) { if (window.addEventListener) { this.addEventListener("load", fn, false); return true; } else if (window.attachEvent) { var onload = "onload" this.attachEvent(onload, fn); return true; } else { return false; } } ] which is giving me a an exception every time a page on our site loads. The actual exception in firefox is this: uncaught exception: [Exception... "Could not convert JavaScript argument" nsresult: "0x80570009 (NS_ERROR_XPC_BAD_CONVERT_JS)" location: "JS frame :: https://cms-dev.stchas.edu/global/js/hdvscripts.js :: addNewWindowEvent :: line 5" data: no] and I'm not sure exactly what it's complaining about. I'm relatively new to javascript so diagnosing and fixing this problem has me quite puzzled, and so far I have been unable to find anything helpful when I try and google for information on this. I would appreciate any help or suggestions. Thanks. henryv i cannot understand, am i making the same mistake each time but my <body onload="startChecking()"> does not want to load again?? here my full code: Code: <head>
<script language="JavaScript" type="text/javascript">
var sendReq;
var receiveReq;
var lastmessage = 0;
var mTimer;
function startChecking()
{
receiveReq = new XMLHttpRequest();
console.log("1234");
getNewMessage();
}
function getNewMessage()
{
if (receiveReq.readyState == 4 || receiveReq.readyState == 0)
{
console.log(receiveReq.readyState);
}
mTimer = setTimeout('getNewMessage();',30000);
}
</script>
</head>
<body onload="startChecking()">
//more code here
</body>
i just want the console.logs to execute then i will continue with the rest of my code... please help? thank you I am having trouble running multiple windows.onload functions and having trouble how to implement them. I found a couple articles on but couldn't really get them to work. Here are the two functions I'm trying to load: Code: <script type="text/javascript">
//<![CDATA[
window.onload=function(){
//randomize order of contents with DIV class="group1"
randomizeContent("group1")
randomizeContent("group2")
randomizeContent("group3")
}
//]]>
</script>
Code: <script type="text/javascript">
function showHideMore(obj) {
var contObj = obj.parentNode.getElementsByTagName('div')[0];
var status = (contObj.style.display == 'block')? 'none' : 'block'
contObj.style.display = status;
<!-- obj.innerHTML = (status == 'block')? 'Show less' : 'Show more'; -->
obj.curPic = (obj.curPic == 0)? 1 : 0;
obj.style.backgroundImage = 'url("'+plusMinusPics[obj.curPic]+'")';
}
window.onload=function(){
plusMinusPics = ['plus.png','minus.png'];
oMoreLessSpans = document.getElementById('list1').getElementsByTagName('span');
for(i=0; i < oMoreLessSpans.length; i++){
oMoreLessSpans[i].curPic = 0;
oMoreLessSpans[i].style.background = 'url("'+plusMinusPics[oMoreLessSpans[i].curPic]+'") no-repeat 0 50%';
oMoreLessSpans[i].onclick=function(){showHideMore(this);}
}
}
</script>
Hello, I have a script I am using which works great, except when I copy the code and have multiple events it only shows the first one. This I believe is because it's calling the first class name of it's kind. I want the class's to be named the same thing (css styling) and because the site is going to be dynamically driven, but is there a way to modify my script so that instead of looking for the first class it recognizes the right class associated with the button clicked. If anyone can help me fix this problem I am having I would be most appreciative.. Code: <script language="javascript">
function toggle() {
var ele = document.getElementById("commpopup");
if(ele.style.display == "block") {
ele.style.display = "none";
}
else {
ele.style.display = "block";
}
}
</script>
<div class="togglecomment">
<div class="popup" id="commpopup">
<div class="commentbtn"><a href="#"><img src="images/commenticon.png" align="absmiddle" />Comment</a></div>
</div>
<div class="button"><a href="javascript:toggle();"><img src="images/comment_btn.jpg" /></a></div>
</div>
Hello all, I'm wondering if anyone can offer advice on a simple (or so I thought!) Javascript menu I'm trying to create. I'm creating 5 buttons, using event handlers (onmouseover etc) which exchange 1 image for another. I did the first one fine - it worked perfectly, but as soon as I added the rest they all stopped working properly. The best I have got, is that the last link will do what it's supposed to regardless of which link I hover over! Which is strange. So the browser seems to be actioning the last thing on the list if that makes sense. It seems to me that I need to add an "if" type attribute, so "if" I hover over the home button, the home images change, as opposed to the last one on the list. This is the code I have so far for a single link - the rest are copies of this with adjustments made to the imgname and image sources obviously..... <div style="width:80px; height:20px;margin-top:20px;margin-left:85px;"><a href="about.html" onMouseOver="return changeImage()" onMouseOut= "return changeImageBack()" onMouseDown="return handleMDown()" onMouseUp="return handleMUp()" ><img name="aboutbutton" src="img/aboutn.png" width="80" height="20" border="0" alt="javascript button 1"></a> <script language="JavaScript"> upImage = new Image(); upImage.src = "img/abouth.png"; downImage = new Image(); downImage.src = "img/aboutc.png" normalImage = new Image(); normalImage.src = "img/aboutn.png"; function changeImage() { document.images["aboutbutton"].src= upImage.src; return true; } function changeImageBack() { document.images["aboutbutton"].src = normalImage.src; return true; } function handleMDown() { document.images["aboutbutton"].src = downImage.src; return true; } function handleMUp() { changeImage(); return true; } </script></div> Any suggestions on where I am going wrong would be wonderful. Thanks so much in advance! All the best Hi folks, I have the problem on using onKeyPress Event. I added one TextArea button to my form and wrote the validation script of max 10 characters for this TextArea. The code is like as shown below: <script type="text/javascript"> function isMaxLength( posDesc) { var desc = posDesc.value if( desc.length >10) { alert( "10 characters "); posDesc.value = desc.substring(0,10); posDesc.focus(); } } </script> </HEAD> <BODY> <TEXTAREA NAME =POSITION_DESC ROWS =2 COLS = 25 MAXLENGTH = 10 onKeyUp ="isMaxLength(this);" WRAP = VIRTUAL >position</TEXTAREA> </BODY> --> while entering the 11 th character the onKeyPress Event fires and displays alert message. And it replacing the 10 th index character with 11th new character. Here i do not want to update 10th index character. i want to remove 11th index character from textarea. For OnKeyUp Event it is working fine but this event would not filtering the ctrl,alt,shift characters. I am new for Javascript , please help me. regards, prakash. Hey all, I have an object called Table that gets instantiated: Code: var tableReady = new Table($(this)) This Table in turn instantiates a header: Code: if(typeof header.attr('data-sorter') !== 'undefined') headers.push(new Header(header));
A method is attached to the Header object called attach() which simply passes in a string 'click': Code: var Header = function(header){
this.header = header;
this.addEventHandler(this.header, "click", attach("click"), true);
}
The addEventHandler() function is declared below: Code: function addEventHandler(oNode, evt, oFunc, bCaptures)
{
if (typeof(window.event) != "undefined")
oNode.attachEvent("on"+evt, oFunc);
else
oNode.addEventListener(evt, oFunc, bCaptures);
}
While the addEventHandler() function is called during Header instantiation, which in turn calls attach(), attach() is never executed unless there is a click event called on header object: Code: Header.prototype = {
attach: function(event){
var obj = this;
if(event == "click"){
obj.header.bind("click", function(e){
obj.children()[0].preventDefault();
return obj.calculate();
})
}
},
I call preventDefault() (I'm using the jquery library as well) to try to prevent the link from responding to a click by targeting obj.children()[0] which refgers to the nested link. Unfortunately this doesn;t work. The link is still triggered anyway. How can I force the browser not to respond to the link in the above situation, preferably using an OOP solution? Thanks for response. Hi, I have a problem in javascript, where entering a value in the textbox during onblur I am doing a refresh to bring in the updated records from the DB , before the on blur refresh is completed if the user clicks the search button (onclick) during the first click nothing is happening as the refresh is still going on. During the second click when the on blur refresh is completed it will open a popup. The problem here is I am unable to disable/inactivate the search button untill the refresh is completed as well as I dont have any control over the refresh time as well. This is like already an event is in progress and where we are invoking another event which is not having any effect. In such case how i can handle this scenario? Thanks. Every time I try to use the notEmpty function with an onClick event, the validation stops working. I also need to implement a pop-up that gives me this information - alert("Your name is"+firstname +lastname", your G.P.A. is "+gpa "your phone number is "+phone); anytime I try to use it as a function with onClick, it interrupts the validation as well. Please help! I'm completely lost. Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<!--
Date: 11/12/2014
Filename: validator.html
Supporting files: None
-->
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Validator</title>
<script type='text/javascript'>
function formValidator(){
// Make quick references to our fields
var firstname = document.getElementById('firstname');
var lastname = document.getElementById('lastname');
var gpa = document.getElementById('gpa');
var phone = document.getElementById('phone');
// Check each input in the order that it appears in the form!
if(isAlphabet(firstname, "Please enter only letters for your first name")){
if(isAlphabet(lastname, "Please enter only letters for your last name")){
if(gpaValidator(gpa, "Please enter a valid G.P.A.")){
if(phoneValidator(phone, "Please put a valid phone number")){
return true;
}
}
}
}
return false;
}
// Functions that check values in input fields!
function notEmpty(elem, helperMsg){
if(elem.value.length == 0){
alert(helperMsg);
elem.focus(); // set the focus to this input
return false;
}
return true;
}
function isAlphabet(elem, helperMsg){
var alphaExp = /^[a-zA-Z]+$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
function gpaValidator(elem, helperMsg){
var alphaExp = /^([0-3](\.\d\d?)?|4(.00?)?)$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
function phoneValidator(elem, helperMsg){
var alphaExp = /\(?(\d{3})\)?[- ]?(\d{3})[- ]?(\d{4})/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
</script>
</head>
<body>
<form onsubmit='return formValidator()'>
<fieldset>
<legend>Personal information:</legend><br />
First Name: <input type='text' id='firstname' /><br />
Last Name: <input type='text' id='lastname' /><br />
G.P.A.: <input type='text' id='gpa' /><br />
Phone Number: <input type='text' id='phone' /><br />
<input type='submit' value='Submit' />
</form>
</body>
</html>
I have added an event listener to a LI item in the DOM: liNode.addEventListener("mouseover", mouseOn, true); The mouseOn function: function mouseOn(e) { // Test for IE or Firefox var e = (!e)?window.event:e; var yPos; if (e.pageY) { yPos = e.pageY; } else { yPos = e.clientY; } } I would like to pass in another parameter to the mouseOn function in addition to the event that is passed in automatically. Is there a way to do this? Hi i am using the following code to load a part of page dynamically using jquery Code: loadNextBackInPage_URL = null;
function callBackFunctionLoadNextBackInPage(data)
{
//alert(data);
$("#left").fadeTo(100,1);
var data = $(data).find( '#left' );
$("#left").html(data);
if(supports_history_api())
{
history.pushState(null, null, loadNextBackInPage_URL);
window.addEventListener("popstate", function(e) {
alert('s');
loadNextBackInPage(location.pathname);
});
}
else
{
}
}
function loadNextBackInPage(url,parm)
{
//alert(url);
loadNextBackInPage_URL = url;
$("#left").fadeTo(100,.2);
$.post(url,parm,callBackFunctionLoadNextBackInPage,'html');
}
The loading part and even changing the browser URL is working. but why is the PoP state function being fired multiple times? I call loadNextBackInPage() originally through an onclick function. Hi forum, I am trying to attach an event to a dynamically produced button, and then use stopPropagation and preventDefault. Code: function chapter12_nodeOne() {
//create an element
var element = document.createElement('input');
//set some attributes
element.setAttribute('type', 'button');
element.setAttribute('value', 'submit');
element.setAttribute('id', 'myBtn');
//appendd the element into a DIV
document.getElementById('myDiv').appendChild(element);
//uses EventUtil to attach an event listener
EventUtil.addHandler(element, 'click', function() {
alert('event attached');
});
var flag = confirm('prevent default behavior of button?');
if (flag) {
var el = document.getElementById('myBtn');/////////////////////////(1)
var ev = el.onclick;
}
}
var EventUtil = {
addHandler: function(element, type, handler) {
//check if the element and the browser support DOM Level 2 event attachment
//if the user is not browsing with IE
if (element.addEventListener) {
element.addEventListener(type, handler, false);
}
//if user is browsing with IE
else if (element.attachEvent) {
element.attachEvent("on" + type, handler);
}
//if user is using a browser that only supports DOM Level 0 event attachment
else {
element["on" + type] = handler;
}
},
removeHandler: function(element, type, handler) {
//check if the element and the browser support DOM Level 2 event attachment
//if the user is not browsing with IE
if (element.removeEventListener) {
element.removeEventListener(type, handler, false);
}
//if user is browsing with IE
else if (element.detachEvent) {
element.detachEvent("on" + type, handler);
}
//if user is using a browser that only supports DOM Level 0 event attachment
else {
element["on" + type] = null;
}
}
};
But when debugging I see under el on the line marked with (1) that the onclick event is null. What am I doing wrong?! PS:the event is attached, when I click on the button I get an alert message is it possible to capture the control.event or element.event that was fired to invoke the onbeforeunload event. for example, if a button is clicked and it causes the onbeforeunload event to fire can i determine which button was clicked. thanks I have a ondrag event handler and in that I am trying to retrieve e.ClientX but it always return 0 in Mozilla. Works fine in IE though. How can retrieve the clientX and clientY in ondrag event? Hi, I'm looking to create a box that shows to IE6 users or lower, to tell them that my site does not render properly in the IE6 browser and that they should therefore upgrade to a newer version or alternative browser. Basically I would put whatever the code to show the box into these tags: Code: <!--[if lte IE 6]> INSERT HERE <![endif]--> to enable it to only appear to IE6 or below users. Preferably when this box appeared, it would be nice if it could fade the page behind it. Does anyone have a script for this or know of a tutorial I could use? The box would also need buttons at the bottom that said "Ok, upgrade me" (this would load another window with links to alternative browsers) or "No thanks" (or "Close") Thanks in advance. |
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