473,382 Members | 1,633 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,382 software developers and data experts.

please help with checkboxes

abs
Hi.
I've got such html source:
<form name=my_form>
<input type=checkbox class="a"><input type=checkbox class="b"><br>
<input type=checkbox class="a"><input type=checkbox class="b"><br>
<input type=checkbox class="a"><input type=checkbox class="b"><br>
<input type=checkbox class="a"><input type=checkbox class="b"><br>
<input type=checkbox class="a"><input type=checkbox class="b"><br>
</form>

How to allow user to mark only two checkboxes of class "a" ? Class "b" can
be marked as user want - no matter how much.

There's a function like that:

<script type="text/javascript">
function init(){
var i,l,t=[],ile=2
cb=document.formularz.elements
for(i=0;i<cb.length;i++)
if(cb[i].type=='checkbox'){
t[t.length]=cb[i]
cb[i].onclick=function(){
for(l=i=0;i<t.length;i++)
if(t[i].checked){l++;if(l>ile)return!1}
}
}
}
</script>

but I can't force it to work with checkboxes of class "a" only. Could you
help me ?

Thanks in advance,
Regards,
ABS
Jul 20 '05 #1
1 1825
abs
Janwillem Borleffs wrote:
Normally you would name the checkboxes because you cannot use their
values otherwise. When you do, you can use the following: [...]


Big thanks !

Regards,
ABS
Jul 20 '05 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

3
by: Bryan Wood | last post by:
I am developing a regisration page that will present a set of check boxes to the viewer. This list of checkboxes is developed from a list in a database so the amount and names of the boxes will...
5
by: @(none) | last post by:
I have a page which is a set of CheckBoxes generated daily and thus the number of Checkboxes changes each day. What I want to do is allow the user to select one or more checkboxes and the push a...
1
by: rdlauer | last post by:
I've just run into a strange problem with IE 6 and I'm wondering if anyone else has seen the same: On my form I have a hidden field that contains the HTML for a series of checkboxes: <input...
1
by: Chris Uwins | last post by:
Hi there, i know theres a number of ways I can achieve this but want to know the best, (but still quite simple). Up until a year ago I never used Access but have designed a few databases for...
7
by: Stephen | last post by:
I have some code which I call from a custom validator however I seem to have got the logic wrong and im having trouble figuring out how to write my code to get things to work the way I require....
3
by: Amy Snyder | last post by:
For what I thought would be a very simple task is turning out to be very frustrating. I have been trying for a day now to extract checkbox values from my form and nothing is working. On my form...
6
blazedaces
by: blazedaces | last post by:
Hey, so here's an example of what I want to do: This "window" if you will, or simple gui, will accept an ArrayList<String> and in turn spit out for every one of them a checkbox and a text field...
1
by: Carl Johansson | last post by:
I have a virtual ListView (VirtualMode set to true). To make it more convenient for the users of the ListView to select its items, I've set the ListView's CheckBoxes property to true. However, in...
7
by: viki1967 | last post by:
I need one function javascript that: 1) when I enter in this htm page I see enabled only checkbox of categories A, M and T; checkboxes of microcategories all disabled; 2-a) If I select the...
1
by: CloudSolutions | last post by:
Introduction: For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome former...
0
by: ryjfgjl | last post by:
In our work, we often need to import Excel data into databases (such as MySQL, SQL Server, Oracle) for data analysis and processing. Usually, we use database tools like Navicat or the Excel import...
0
by: taylorcarr | last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
0
by: aa123db | last post by:
Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...
0
by: ryjfgjl | last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.