I have an auto refresh script here, it works beautifully, but calling LoadPage via body onload blocks several other scripts on my pages. I've tried calling it through many other suggested alternatives to body onload, but nothing so far works. Here is the code:
<head>
<script>
var asdf = false;
function StartTime(){
if(asdf)clearTimeout(asdf)
asdf = setTimeout("RefreshPage()",15000);
}
function RefreshPage(){
clearTimeout(asdf)
if(document.autorl.RFCB.checked)
document.location.href = document.location.pathname + '?Checked'
}
function LoadPage(){
var findCheck = document.location.href.split("?Chec");
if(findCheck.length == 2){
document.autorl.RFCB.checked=true;
window.location='#bottom'
StartTime()
}
}
</script>
</head>
<body onload="LoadPage()">
<div>
<form name="autorl">
Auto-Refresh: <input type="checkbox" name="RFCB" onclick="StartTime()">
</form></div>
<a name="bottom">
Could anybody here lend a hand with this?
You could instead use something like the document.ready() handler in jQuery to accomplish this:
$(document).ready(function() {
LoadPage();
});
http://api.jquery.com/ready/
you can try and call the function from the end of html file just before the </html> tag add a <script>LoadPage();</script>
Related
I wish to add code to a click event in a file and a script tag. But they seem to conflict. How can I achieve this?
javascript:
window.onload = function()
{
document.getElementById("button3").addEventListener("click", respond3);
}
function respond3(e)
{
alert("Way to go!!");
}
html:
<head>
<title>Second Javascript</title>
<script src="Second.js"></script>
<script>
window.onload = function()
{
document.getElementById("button2").addEventListener("click", respond);
}
function respond(e)
{
alert("getting better");
}
</script>
</head>
<body>
<h1>The quick brown fox jumps over the lazy dogs</h1>
<button onclick='alert("bad practice");'>Inline</button>
<button id='button2'>Script tag</button>
<button id='button3'>Separate file</button>
</body>
Per Quentin's suggestion I changed the script tag to this:
<script>
window.addEventListener('load', AddClick2)
function AddClick2()
{
document.getElementById("button2").addEventListener("click", respond);
}
function respond(e)
{
alert("getting better");
}
</script>
The on* properties can only have one function assigned to them. It's not so much a conflict as you are simply overwriting the first onload function with the second.
While you could do something along the lines of checking to see if there is already a function there, then copying it to a new variable, then calling it from the new variable inside your new onload function … that gets messy.
Use addEventListener instead.
window.addEventListener('load', a_function);
window.addEventListener('load', a_different_function);
Well, i want that when body is completely loaded then call a function for show a hide image. I tryed a lot of things and searched a lot but anything work. I think it's pretty simple and easy but i don't know why doesn't work...I wish that anyone be able to help me.
<body onload="start()">
<div id="bg" style="display:none"></div>
</body>
function start() {
document.getElementById("bg").style.display = 'block';
}
Here Jsfiddle link
you have to option:
1- add script at before starting
<script type="text/javascript">
$(document).ready(function () {
//Add your code here to run after fully page load
document.getElementById("bg").style.display = 'block';
});
</script>
2- or add your script at end of <body> before ending </body> tag:
<script type="text/javascript">
//Add your code here to run after fully page load
document.getElementById("bg").style.display = 'block';
</script>
just remove onload="start()" from your body and replace your function start for
<script>
window.onload=function() {
document.getElementById("bg").style.display = 'block';
};
</script>
if you want use jquery, then
<script>
$(document).ready(function (){
$("#bg").css("display", "block");
});
</script>
That's because you need to run your Javascript inside the body tag. Actually at the end.
Conversely, the start function will be undefined and nothing happens:
<body onload="start()">
<div id="bg" style="display:none"></div>
<script>
function start() {
document.getElementById("bg").style.display = 'block';
}
</script>
</body>
I have a javascript file containing a ajax function with parameter x.
I cannot reveal the function.I want to call the function on page load and on a button click.Also there is a for loop on the function for displaying the variable 10 times i.e,
for(i=0;i<10;i++).
The code for that button is :
HTML file
<html>
<title>Call web service</title>
<head>
<script type="text/Javascript" src="jquery-1.9.1.js"></script>
<script type = "text/javascript" src="ajax.js"></script>
<script type="text/javascript">
window.onload=function()
{
Webservice(1)('onload'); //call 1 where webservice is ajax function
}
</script>
</head>
<body>
<input id="button" type = "button" name = "button" value = "Call Webservice" onClick = "Webservice(5)"/>
</body>
</html>
Right now what I am getting is the onload function is getting overridden when I click the button whereas I want the outputs of both the functions to be displayed simultaneously
So please help me.
Thanks in advance.
Try doing this:
function f1() {
//what you need to do
}
function f2() {
//Do the same thing here also
}
This being your JS, in onload, call f1() and for button click call f2(). If you want f1() to execute before f2(), i suggest you look into locks here:
How to implement a lock in JavaScript
Your javaScript code should be something like this:
var fn = function fn(x) {
// Do something
}
$(function() {
var someValue;
// someValue = ...
// Call function once document is loaded
fn(someValue);
// Bind function as a callback to button click
$('#button').on('click', function(event) {
fn(someValue);
});
});
I've created links to transition yet when the function is supposed to be called using the onmousedown event I get an uncaught undefined function. Clearly my function is defined. I'm am still learning code so what is it I don't see or understand. Any tips will be greatly appreciated.
<html>
<head>
<script type="text/javascript"src="js/jquery.js"></script>
<script type="text/javascript" src="js/jquery-ui.js"></script>
<script type="javascript">
$(document).ready(function (){
var url = "phpajaxtut.php";
});
function swapContent(cv){
$("#myDiv").html("animated gif goes here").show();
.post(url, {contentVar:cv}, function(data){
$("#myDiv").html(data).show();
});
}
</script>
Click the text
Click the text
Click the text
</head>
<body >
<div id ="myDiv">My default content</div>
</body>
</html>
Why not just use $.click(); instead, since you're already using jQuery, and forgo the hyperlinks? You can easily style some spans to look like as if that's what you want. My example just updates some text, but in there you can place / call your function.
See here:
// html
<span>Click Me</span>
<br />
<span>Click Me</span>
// js
var n = 0;
$("span").click(function(){
$(this).text($(this).text() + " " + n++);
});
Do you need a $ before .post?
$.post(url, {contentVar:cv}, function(data){
$(document).ready(function (){
var url = "phpajaxtut.php";
});
The var url isn't global. It can only be used inside the function
var url; //global url
$(document).ready(function (){
url = "phpajaxtut.php"; // set global url
});
Can I use body onload and window.onload at the same time? I've tried it using this code
<body onload = "alertFirst()">
</body>
<script>
window.onload = alertSec;
</script>
But it didn't work. I just need someone to confirm it to me. Many thanks
The answer to your question is "no". However there are ways around it.
Adding both calls to one onload function is ideal, but if you /have/ to add an onload handler after one is already added, and you are not using a framework which facilitates this, you can get by like this:
<html>
<head>
<script type="text/javascript">
function alertFirst(){
alert('First');
}
function alertSec(){
alert('Second');
}
</script>
</head>
<body onload="alertFirst();">
content
</body>
<script>
var func = document.body.onload;
window.onload=function(){
func();
alertSec();
}
</script>
</html>
You can (by adding event handler(s)) but you should NOT have both
Instead add the call to the window.onload:
<html>
<head>
<script>
window.onload = function() {
alertFirst();
alertSec();
}
</script>
</head>
<body>
</body>
No, document.body.onload is actually mapped to window.onload. You can check yourself—when you have <body onload="a()"> and to console.log(window.onload), a() is printed out into the console.
What you can do is to have one onload event handler that calls two other functions.
window.onload = function () {
a();
b();
};
or two event listeners
window.addEventListener('load', a, false);
window.addEventListener('load', b, false);
If one or more of the scripts you want to use has the event handler in the BODY HTML tag, you can still move it to into javascript code. See the example below:
Script #1:
<script language="javascript">
function start(){
...code for script #1...
}
</script>
<body onload="start()">
Script #2:
<script language="javascript">
function init(){
...code for script #2...
}
window.onload=init;
</script>
Result:
<script language="javascript">
function start(){
...code for script #1...
}
function init(){
...code for script #2...
}
window.onload=function(){
start();
init();
}
</script>
<body>
I think it may can help you.