Can I target the element and base an onChange outside of directly calling it in the element tag?
Due to the nature of my script, the best I can do is wrap a tag around the element.
example of what I am trying to do
Code:
<script>
document.form.field1.onchange = function();
<script>
And if this might work, can I call it in the head or must it come after the element.
'm trying to use jQuery to append to the onchange event of each of the following input elements. The following code actually replaces the event. When the onchange event fires on any of the elements, I get one alert which just says "new". What I would like to see is 2 alerts, one that says "test?" where ? is the element that changed and another that says "new".
[Code]...
Is there something that will update as soon as the user changes information in a textbox as appose to what onChange does, which is update once the focus has been taken off of the textbox? I am writing a custom cart and I am using AJAX to update the price according to how many they are ordering, I was hoping to have it update the price as soon as the user put in the volume, but it doesnt update until the user clicks somewhere else on the page.
View 3 Replies View RelatedI'm trying to append an onChange attribute to an element created through javascript. The following doesn't work. The select is created and has the proper name and id but no onChange..
var sel = document.createElement('select');
sel.name = 'size[' + i + ']';
sel.id = 'size[' + i + ']';
sel.onchange = "changeMini();";
I have a small HTML form that has a textfeild which when clicked on open a calender, this works fine. I also want to display the selected date in another textfeild using "OnChange". This is what I am working with:
TEXTFEILD
Code:
<input name="startDate" type="text" class="bodytext" id="startDate" size="10" maxlength="10" onclick='scwShow(this,this);' onchange="PrintValues3();" target="_parent._top" onmouseclick="this.focus()">
[code]....
The result2 is then displayed in a textfeild called "result2" but in my case its not.
Is it possible to use both "OnClick" and "Onchange" together?
on the onchange event of a select element, i would like to pass the old selected value and the new selected value to a function.
View 2 Replies View RelatedI have 1 form, and dozens of elements. In the select elements I use onchange="somefunc()". In this function I'd like to access and change the form element attributes (such as form.element.option[].value and form.element.option[].innerHTML).
Is there a way to access the element that has just changed (unsing onchange="somefunc()") by passing a "this.element" parameter to access the elements properties such as form.element.option[].value within the function?
For some reason my change() function is only called when the page loads. I'd
much rather it gets called when the select changes.
Here's the code:
window.onload = init;
function init() {
var new_select = new Selector('tdata','myselect','myid');
var new_select_list = new DataSource("some_list");
new_select_list.addItem(1,"One");
new_select_list.addItem(2,"Two");
new_select_list.addItem(3,"Three");
new_select_list.addItem(4,"Four");
new_select_list.addItem(5,"Five");
new_select.setDataSource(new_select_list);
new_select.formInput("form","input");
}
Selector = function(container_id,name,id) {
var container = document.getElementById(container_id);
this.node = document.createElement("select");
//this.node = new Select();
container.appendChild(this.node);
this.node.name = name;
this.node.id = id;
}
Selector.prototype.setDataSource = function(ds) {
this.dataSource = ds;
for(var i = 0; i < ds.items.length; i++) {
if(ds.items[i] != undefined) {
var option = new Option(ds.items[i],i,false,false);
this.node.options[this.node.options.length] = option;
}
}
}
Selector.prototype.formInput = function(form,element) {
var myform = document.getElementById(form);
this.input = document.createElement("input");
this.input.name = element;
//this.input.type = "hidden";
myform.insertBefore(this.input,myform.firstChild);
this.node.onchange = change(this);
}
function change(selector) {
alert("hello");
selector.input.value = selector.node.value;
}
DataSource = function(name) {
this.name = name;
this.items = new Array();
}
DataSource.prototype.addItem = function(id,item) {
this.items[id] = item;
}
and the html:
<html>
<head>
<script defer src="/javascript/selectors.js"
type="text/javascript"></script>
</head>
<body>
<form id=form>
<table border=1>
<tr>
<td>
Select:
</td>
<td id=tdata>
</td>
</tr>
</table>
</form>
</body>
</html>
I have an idea for a little script.....I'm just stuck on one little part: When a user changes the value in a input or textarea box, I want it to change the value of a certain hidden input tag too.
Here's what I have so far:
function getNewValue(inputhidden, textinput) {
var data = document.getElementById(inputhidden);
var text = document.getElementById(textinput);
data.value = text.value;
[Code]....
In the next sentence, what's wrong?
<select name='id'
= 'Daniel Perez'&valor='+this.options[this.selectedIndex].value">
IE complains about missing ";"
suppose I have the following:
Code HTML4Strict:
<li id="lists">
<a> ... </a>
<li>
[code]....
here it now selects all a tag in "lists" but I only want it to reference the a tag that is the direct child of "lists" li. I want it to ignore the freen highlighted part.
<li id="lists"><a> ... </a><li><a> ... </a>
<a> ... </a>
<a> ... </a></li>
</li>
I understand that the onchange event occurs when the value of a
form element changes (and after the element loses focus).
But what about the case where the value of a text box (for example)
is changed from a javascript function? Is an onclick event triggered
in such a case? I find that this is not happening in IE.
I have a big problem with a simple event : onchange!
If I write this page:
<html>
<body>
<form id="vu">
<input id="var01" name="var01" size="5" onchange="return false;"/>
</form>
</body>
</html>
everything is ok in IE (I can't leave the input zone !) but nothing happens in Firefox!
It looks like the event is not fired or...
Do you have any clue?
I have a button that opens a calendar and populates a text box. I use
the onclick event to open the calendar.
Now the textbox has a onChange event that calls a function. The
onChange fires perfectly if I type the date on the textbox, but if the
calendar changes the date on the field then the onChange event doesn't fire.
I even try the following, but it seems that both functions run at the
same time and the value on the field is never picked up.
I was working on a site that uses Google Checkout buy now buttons, and
I wanted the product picture to change based on what was picked. I was
able to have it change the picture, but if you pick a new item after
that, it keeps the same picture. Here;s the code:
The box (only the first part):
I've written some kind of menu to display a diagram with input fields
for a budget plan. A user should be able to change values, which are initially filled by
a database value, and get all corresponding values filled by the
program.
//value given by database
showText[k].setAttribute("value", eval("liste[i][TEXT" + k + "]"));
//onchange event for the user to change the value
showText[k].setAttribute("onchange", "calculate('cost" + i + "')");
//function to recalculate corresponding values
function calculate(myId) {
if (myId == "initial") {
...
}
else {
myId = myId.slice(4);
//getParents(myId) returns corresponding values for myId
var myParents = getParents(myId);
for (var i = deep; i >= 0; i--) {
var sum = 0;
for (var j = 0; j < myParents.length; j++) {
...
for (var k = 0; k < children.length; k++) {
sum +=
parseFloat(document.getElementById(eval("'cost" + children[k] +
"'")).getAttribute("value"));
}}}}}}
My Problem is:
IE and Netscape always use the value initially entered by the database
and not the new value entered by the user.
Is there a timing or DOM problem?
I have the following code running on my site...
Code:
<script type="text/javascript"> function test_func() { alert("You clicked the map."); } </script> <form action="#"> <input type="button" onclick="test_func();" value="Test"/> </form>
It works fine, but I want the form to call test_func onchange instead of onclick. I want to add an input type='text' named call_func that when changed, will call the test_func function.
I'm having problems. I am collecting data from an XML file and serving it up to a web page. Here's the code.
The thing is, I have taken a Submit button away and want the data to appear as the user types. I tried using onChange event handler but it only works when I click the mouse away from the input box, like an onBlur() event. Code:
I have 2 html menu.html and menu2.html, and would like to swich one another using "onChange" in each form. function pageCh works first time, but it doesn't 2nd time.
alert("menu2") does not pop up either. Code:
How can I change a select list when a user enters a value into a text box? Like with the below form I would like to have the select box change when the user enters a value in the "id" text box that matches a value in the select box. Say the user types "1122" in the text box I would like the select list to change to to show "John". Is this possible ....
View 5 Replies View RelatedI have a web-based form which allows users to enter marks for a group of examination candidates. I have a function which performs some calculations on the data as it is entered and displays it immediately. The data-entry form-part definition is:-
View 8 Replies View Relateddoes anyone know of a way of forcing the onChange() event of a control (it happens to be a <SELECT> if that is relevant) to fire off? (That is apart from the obvious one of changing the value with the mouse / keyboard!!!!)
I have some code which alters the currently selected element in a list and I need the list's onChange to then be fired off. The code is designed to work with many different lists, so I can't hard-code the same functionality into my code that is normally provided by the onChange.
I've tried ....element.onChange() and .....element.Change() but neither of these seem to work.
<form> onchange event doesnt work in IE. but works in Mozilla. Is there any other alternative in IE for <form onchange>????
View 2 Replies View RelatedI'm making a form and I need it to do this:
From a drop-down box, the user chooses their country.
- User selects a country other than Australia, nothing happens.
- User selects Australia, another drop-down box appears with Australian states
* If they select a state other than Victoria, nothing happens
* If they select Victoria, another drop-down box appears with Region
I'd like the subsequent drop-down boxes to be either inactive and unclickable (technical terms here ) or not visible at all until the above conditions happen.
I've built a validation function which works great when you submit a form by clicking a button. However now I want to submit the form when the value of a input textbox changes. Actually it works fine to submit the form on the event onChange but it doesnt validate.
This is my code:
<form method="post" action="put_cart.asp" name="form1" return validera(this)">
<input name="product_id" value="<%=rs_mycart("Product_id")%>" type="hidden">
<input type="hidden" name="the_cart" value="yes">
<input type="text" name="quantity" value="<%=rs_mycart("Quantity")%>" size="3" >
</form>
I'm trying to design a bracket for our office to use for the NCAA tournament this March. I'll have drop down menus for the user to choose the winner of each game and I'd like for the drop downs to change dynamically, based on what has previously been selected. Ideally, this code below will change the third drop down menu to contain the values of the first and second fields. Code:
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