How Do You Check To See If A Javascript Function Exits?
Apr 19, 2006i tried checking for document.function_name(), but that apparantly does
not work. Anybody got an answer to this one?
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Loading Pages When User Exits
Oct 23, 2005Is there a javascript code for loading php pages when the user exits the forum?
For example I am writing a webpage where I would like it to run the logout script when the user exits the forum, if they have not already logged out. Is this possible to do with JavaScript? (using sessions in forum not cookies).
Function - Check On A Check Box Another Check Box Appears
Jan 28, 2009I want a function that when you check on a check box another check box appears.
View 10 Replies View RelatedCheck Cgi Response Via Javascript
Jul 23, 2005I have an html for that when a user clicks the submit button it will
run a remote cgi program and based on the response do one of two
things.
1. If the response contains "OK" continue the form submit.
2. If the response contains "NOGOOD" Cancel the submit and return to
the form.
Javascript Field Check
Aug 4, 2006I'm having some problem with checking with the follwoing code:
if (appForm.q15a[i].checked==true && appForm.q15cert.value==""){
alert ("You must enter value!!!!")
valid = false;
}
What I'm trying to do is have the user enter some data based upon if
the radio button is true and the text field is empty. What could be
wrong with the following code above.
Check All Button In JavaScript
Jan 8, 2002does anyone have a handy check all script? I have a series of check boxes in a form and would like to add the option of clicking a button to select all.
View 6 Replies View RelatedCheck Some Aspx Controls With Javascript?
Oct 12, 2005Does anyone know of a way I can check asp validator controls from the client
side? I need to be able to opt out of a postback if any validators are
false. I am using a ComponentArt tabstrip and it proceeds with posting back
even if "IsValid" is false.
Avoid Javascript Browser Check
Jul 20, 2005I have to access a website which does a stupid browser check and only
accepts Netscape 4.7. The problem is that I have to access the website with
Mozilla or Internet Explorer. Code:
Check For Callto: Protocol Support Using Javascript
Jan 10, 2006I am developing a web-application which will start telephone-calls using a special protocol (callto: or phone:)
There will be two groups of users, one with a phone-client installed and support for the protocol,
and one without this client.
So I need to write a javascript-function to check if the callto: or phoneto: protocol is available on the client.....
Ruby Check_boxes - Check All/uncheck All With Javascript
Apr 25, 2006I have the three embedded Ruby(erb) check_boxes below:
Patient #1<%= check_box("patient", Ƈ', {}, "yes","no") %></br>
Patient #2<%= check_box("patient", ƈ', {}, "yes","no") %></br>
Patient #4<%= check_box("patient", Ɗ', {}, "yes","no") %></br>
The HTML output looks like this:
Patient #1<input id="patient_1" name="patient[1]" type="checkbox"
value="yes" /><input name="patient[1]" type="hidden" value="no" /></br>
Patient #2<input id="patient_2" name="patient[2]" type="checkbox"
value="yes" /><input name="patient[2]" type="hidden" value="no" /></br>
Patient #4<input id="patient_4" name="patient[4]" type="checkbox"
value="yes" /><input name="patient[4]" type="hidden" value="no" /></br>
I want to create a button(s) to check all/uncheck all the check_boxes
if clicked by the user. I was thinking I had to use javascript to do
this, but the erb is appending the value to the name in the HTML
output. What this does is prevent my javascript from recognizing these
check_boxes as a collection named "patient".
I know this isn't a pure javascript question, but I am at a loss. I am
new to both languages, which doesn't help either.
Error In Javascript In Form To Check File Extension
May 1, 2007actually there's no error in the code only that is only made to check for one input field and my form has 3 image upload fields, the original is:
<form enctype="multipart/form-data" action="action.php" method="post" onSubmit="if(!this.img1.value.match(/.jpg$/i)){alert('Must be JPG file');return false};return val(this)">
<input type="file" name="img1">
</form>
This works great but what modifications should have to be able to check multiple file input fields?
Javascript Vote Buttons, Check If User Has Already Voted?
Jul 2, 2007I currently run a website similar to digg, where users can vote on a story. What I have been using so far to create the vote buttons, are just simply links that insert a vote into a database. And if a user tries to vote again on the same story, it attempts to insert the vote into the database, (im using MySQL btw), but when it cannot, they are redirected to a page where it tells them they have already voted on the story.
Now I thinking there has to be a better way to do this, and that's when digg came to mind. Can someone please point me in the direction of a javascript tutorial/wiki etc. on creating javascript buttons that interact with a mysql database AND remember that you have voted.
JavaScript Validation To Check For The Validity Of The Uploaded File
Feb 18, 2005Is there a way by which I can validate in javascript whether the file I'm trying to upload is an existant one(i.e., one which is present in my local folder).
View 1 Replies View RelatedBack To Javascript Gurus, Problem Is Check Box Arrays
Apr 13, 2007I'm having an array dynamically fetched from the database using php, in result, I'm getting a check box, with their corresponding value.
I wanted to make a javascript function so that if I uncheck a checkbox, corresponding value disappears.
Before going to the looping, I was trying to do a simple check - like this -
function checkOtherValues() {
if (document.myform.checkmember[0].checked==false) {
document.myform.checkvalue[0].value="";
}
}
I thought this should work, but I'm getting the following error -
document.myform.checkmember.0 is null or not an object For the form, it's set in this way -
<input type="checkbox" name="checkmember[]" value="<?=$chmember[$i]?>" onClick="return checkOtherValues()">
<input type="text" name="checkvalue[]" size="5" value="<?=$chvalue[$i]?>" />
Dynamically Writing Html/javascript From A Javascript Function
Jul 23, 2005I'm working on some code and am running into brick walls. I'm trying
to write out Javascript with Javascript and I've read the clj Meta FAQ
and didn't see the answer, read many similar posts (with no luck
though), and searched through the IRT.ORG Faqs
(www.irt.org/script/script.htm).
The Javascript is designed to open an popup window and then inside that
window call another script which will resize that window. There may be
another way around this but the reason I tried this approach initially
was that I wanted to call the onload handler in the popup window to
resize the image only after the image had completely loaded. I've had
some code in the primary Javascript file (showimage.js) before that
works if the image has been cached but on the first load, it doesn't
resize properly which tells me it is probably because it is trying to
resize the window based on the image size but it isn't completely known
at that point. So I removed that code and tried placing the resizing
code in the second Javascript file (resizewindow.js). BTW I've tried
other code to open a popup image and automatically size it ie Q1443 at
irt.org but that doesn't do exactly what we need.
Even if there is another way to do this with one file, I still want to
figure out why this isn't working in case I run into it in the future.
I thought what I would need to do to use document.writeln to write
Javascript would be to escape any special characters and to break
apart the script tag ie
document.writeln('</SCRIPT>');
would become
document.writeln('</SCR' + 'IPT>');
I have a HTML page and 2 Javascript files. All files are in the same
directory and have permissions set correctly.
Here are the 3 files (keep in mind wordwrap has jacked up the
formatting):
index.html
----------
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Test</title>
<SCRIPT type="text/javascript" LANGUAGE="JavaScript1.1"
SRC="showimage.js">
</SCRIPT>
</head>
<body>
Click the house<BR>
<A ONCLICK="newWindow1('house1.jpg','Nice House')"><IMG
SRC="house1thumb.jpg"></A>
</body>
</html>
showimage.js
------------
function newWindow1(pic,sitename)
{
picWindow=window.open('','','width=25,height=25,sc rollbars=1,resizable=1');
picWindow.document.writeln('<html> <head>');
picWindow.document.writeln('<SCR' + 'IPT type="text/javascript"
LANGUAGE="JavaScript1.1" SRC="resizewindow.js"></SCR' + 'IPT>');
picWindow.document.writeln('</head>');
picWindow.document.writeln('<body onload="resizewindow();">');
picWindow.document.writeln('<img src=' + pic + '>');
picWindow.document.writeln('</body> </html>');
picWindow.document.close();
}
resizewindow.js
---------------
function resizewindow()
{
// Do resizing here.
// Right now this isn't being executed
alert("resizing window");
}
Can anyone provide some pointers as to why this javascript is failing?
I'm using IE6 on Win2k and when I click on the image to open the popup
window, it does open the window but it is white with no content and the
system immediately goes from about 4% CPU usage to 100% and
consistently stays there until I kill that window with the task
manager.
Javascript Function Has No Properties In Javascript Console
May 25, 2005I'm getting errors in Firefox everytime I try to run this frame resize code, but it works fine in IE. I can't seem to figure out what the problem is with it.
The error is: Error: theFrame has no properties
Line: 8
The line that the javascript console is showing an error for is in italics.
code from page:
<html>
<head>
<script type="text/javascript">
var defaultCols="100px,*";
var hiddenCols="0px,*";
function ShowHideMenu(){
theFrame = document.getElementById("framed");
if(theFrame.cols == defaultCols) theFrame.cols=hiddenCols;
else theFrame.cols=defaultCols;
}
</script>
<frameset cols="100px,*" name="framed">
<frame src="lframe.htm" name="frameMenu">
<frame src="mframe.htm" name="content">
</frameset>
</head>
<body>
</body></html>
Come someone let me know what I'm doing wrong here?
Check If Function Exists
Oct 19, 2005How can I check if a function exists in any of the scripts on my page?
I prefer if it can work for both Javascript & VBScript.
How To Check If A JS Function Is Defined?
Jan 17, 2006What is a cross-browser way to check if a function has been defined?
It seems that this code
if (myFn) {
myFn();
}
executes whether myFn is defined or not. When it is not, a JS error
results.
Check All Function Not Working?
Nov 24, 2010I have a webpage with a single form. Under that form I have two separate lists of checkboxes. One set is called eventList the other is assigneeList.I have added two other checkboxes, one is as follows,
Code:
<input name="checkAllEvents" type="checkbox" id="checkAllEvents" onclick="checkAll(this.id, 'eventList')" />
The other is,
Code:
input name="checkAllDelegates" type="checkbox" id="checkAllDelegates" onclick="checkAll(this.id, 'assigneeList')" />
What I want to do is, check all the assigneeList boxes with the same value as the checkAllDelegates checkbox. And the same go the other set respectively.Through rummaging around I came up with the following,
Code:
<script type="text/javascript">
$(function checkAll(id, name) {
$("INPUT[@name=" + name + "][type='checkbox']").attr('checked', $('#' + id).is(':checked'));
});
</script>
However nothing seems to happen when I check the boxes, what am I doing wrong?
Function To Check Whole Numbers
Apr 8, 2009I have a piece of javascript code.
1. It retrieves a value of a cookie (this works)
2. A function is called to check that only whole numbers were entered into an inputbox.
Code JavaScript:
When I load the page, the page gives a "The page loaded but with erros" warning, and the code doesn't work.
I call it using:
HTML Code:
Check If A Function Exists?
Mar 5, 2010I would like to check if a function exists before define it. Does this make sense:
Code:
<script language="JavaScript">
if (typeof this.window['foo'] != 'function') {
[code]....
Check Box Validate Function?
Mar 7, 2010I have a check box validate function that I use (below) to make sure that atleast one check box is checked before the form is submitted.
Code:
var checkFound = false;
for (var counter=0; counter < subscribeform.length; counter++) {
[code]....
Function To Check Only Alphabets?
Jun 16, 2011like IsNan for number is there any function to check only alphabets...
View 4 Replies View RelatedJQuery :: Check The Response Of A Php Function
Jun 4, 2009When I click on a link I have this event:
$.ajax({type: "POST",
url: "/req.php",
asynchronous: false,
dataType: "xml",
[Code]......
The php file check the "op" and call a function that return true (if the query is ok) or false (if the query is not ok). What I have to do to test this value? I mean....jQuery make the sync call, call the php script that run a INSERT query. I need to test in jquery if this QUERY was correctcly lanced. I try with the code above but I can understand that the success parameter is only for the good call of the php script, not for the response.
Function To Check Related Checkboxes
Aug 29, 2004My application displays a list of checkboxes to the user. Some of the boxes are related. For eg:
List of boxes:
a
b
c
d
Checkboxes a and c are related. If user checks a; c should automatically be checked and vice-versa. Same for de-checking. I need a function to do this.
Function To Check If Quantity Ordered Is Valid
Nov 18, 2009I have an online shopping cart and some of the products are sold in boxes of 6. So I am trying to write some code that will alert the customer if they have entered a quantity that isn't some multiple of six.
I've tried using the modulus operator as well as dividing by 6 and then checking to see if the result is a whole number but inevitably the alert box pops up no matter what I enter.
This is what I'm trying to use now:
Is there a better way to check if the entered quantity is a multiple of 6?