JavaScript - Disable All Checkboxes Except 1st One?

Hello, Thanks for reading.

This is my first post, I hope it's not too stupid.

Should I disable the right click option or not?

I have a gallery site, I don't want people to be able to copy the images with the default right click over an image. From a professional looking site point of view I suppose I would be messing with the functionality a bit too much, OR is it OK in this instance to disable the click. I know how to write the code to disable the click, but what I was thinking was maybe it would be better to leave the right click but change the menu options? I'm not sure how to change the menu options, any suggestions would be appreciated

Here is a link to the site.

http://www.thephotographbox.com/?ID=3

(It's still in the early stages on development)

Thanks for any advice.

Derek.

I'm trying to disable my record navigation pictures when they get to the end of a calendar (events are posted on days, and navigation goes to the next or previous one).

Code:

<a onclick="javascript:previousEvent();">
                        <input type="image" name="previous" src="images/SiteCollectionImages/MiniEvents/btn_Previous.gif" alt="Previous Event" title="Previous Event"/></a>
                        <a onclick="javascript:nextEvent();">
                        <input type="image" name="next" src="images/SiteCollectionImages/MiniEvents/btn_Next.gif" alt="Next Event" title="Next Event"/></a>

This is where I have to disable the pictures.

Above in my JS I would like to have a handler that could disable them when they are at the end of the index, or at the beginning.

Thanks!

edit:
I do have the logic already, just not sure how to disable the images.

Code:

function nextEvent(i) {
        if (index == maxIndex || index >= maxIndex) {
            //disable next button
            tempObj = document.getElementsByName("next");
            tempObj.visible = false;
        }
        else {
        index = index + 1;
        eventSelected(rawDates[index]);

        }

I'm probably not allowed to request something like this, but since this is a small amount of code I think I should do it anyways :P

Okey, so I have two listboxes and I want a tickbox to enable one listbox and disable one listbox as you tick a checkbox.

I want one listbox disabled by default and the other enabled and then vice-verca the disable when you tick the box.

If someone could supply me with that code I would be really greatful, butyou don't need to bother with the HTML, I should figure it out from the JS.

Thanks in advance
<3

Hi all.
I have the following problem that I require a pointer with.

I have a php variable named "$seatid"
This could contain 1 or many entries.

I have a page full of checkboxes named A1-8, B1-8, C1-8 etc to P1-8

I want a way of greying out the checkboxes on the page that relate to the values that are contained in the php variable. So they cannot be clicked.

It would also like to change the colour of the cell that the check box is contained in.

It is important that the checkboxes or at least the table that contain the checkboxes remain, as it represents the layout of a theatre.


Cheers for your help

Good evening all,

I have a bit of an issue with checkboxes - basically I need to allow only 1 selection and then have a comments box show when a checkbox is checked. I've gotten the comments box to show when the checkbox is checked but I can't seem to workout how to allow only one. I'd really like the user to be able to change their mind and make a different selection but only have 1 be selected at a time (sort of like radio buttons work). I know it would be much easier and probably better to use radio buttons but that isn't an option with this. (The actual HTML is produced using a style sheet in an application that I am interfacing with so all I can do is use the checkbox.)

Here is the code I am using to show or hide the comments box.

Code:

  

function HideComments() 
{
  var a1 = document.getElementById("crmForm_answer1").checked; 
  var a8 = document.getElementById("crmForm_answer8").checked;
  var a2 = document.getElementById("crmForm_answer2").checked; 
  var a3 = document.getElementById("crmForm_answer3").checked; 
  var a4 = document.getElementById("crmForm_answer4").checked; 
  var a5 = document.getElementById("crmForm_answer5").checked; 
  var a6 = document.getElementById("crmForm_answer6").checked; 
  var a7 = document.getElementById("crmForm_answer7").checked;
  var a9 = document.getElementById("crmForm_answer9").checked;
  var a10 = document.getElementById("crmForm_answer10").checked;
 
  if(a1==true)
  {
    document.getElementById("crmForm_answer1_value").parentNode.parentNode.style.display = 'block';
   }
  else
    document.getElementById("crmForm_answer1_value").parentNode.parentNode.style.display = 'none';

  if(a8==true)
  {
    document.getElementById("crmForm_answer8_value").parentNode.parentNode.style.display = 'block';
  }
  else
    document.getElementById("crmForm_answer8_value").parentNode.parentNode.style.display = 'none';

  if(a2==true)
  {
    document.getElementById("crmForm_answer2_value").parentNode.parentNode.style.display = 'block';
  }

  else
    document.getElementById("crmForm_answer2_value").parentNode.parentNode.style.display = 'none';

  if(a3==true)
  {
    document.getElementById("crmForm_answer3_value").parentNode.parentNode.style.display = 'block';
  }

  else
    document.getElementById("crmForm_answer3_value").parentNode.parentNode.style.display = 'none';

  if(a4==true)
  {
    document.getElementById("crmForm_answer4_value").parentNode.parentNode.style.display = 'block';
  }

  else
    document.getElementById("crmForm_answer4_value").parentNode.parentNode.style.display = 'none';

  if(a5==true)
  {
    document.getElementById("crmForm_answer5_value").parentNode.parentNode.style.display = 'block';
  }

  else
    document.getElementById("crmForm_answer5_value").parentNode.parentNode.style.display = 'none';

  if(a6==true)
  {
    document.getElementById("crmForm_answer6_value").parentNode.parentNode.style.display = 'block';
  }

  else
    document.getElementById("crmForm_answer6_value").parentNode.parentNode.style.display = 'none';

  if(a7==true)
  {
    document.getElementById("crmForm_answer7_value").parentNode.parentNode.style.display = 'block';
  }

  else
    document.getElementById("crmForm_answer7_value").parentNode.parentNode.style.display = 'none';

if(a9==true)
  {
    document.getElementById("crmForm_answer9_value").parentNode.parentNode.style.display = 'block';
  }

  else
    document.getElementById("crmForm_answer9_value").parentNode.parentNode.style.display = 'none';

if(a10==true)
  {
    document.getElementById("crmForm_answer10_value").parentNode.parentNode.style.display = 'block';
  }

  else
    document.getElementById("crmForm_answer10_value").parentNode.parentNode.style.display = 'none';
}

Thanks in Advance
Sam

have a simple calculator i made with checkboxes and some Js.

the problem is that it does not work in FF.

any idea how this can work for
IE
Safari
AND FF


Code:

function getPrice(amount, boxName){
		total = eval() ;
	
		checked = document.getElementById(boxName).checked
			if (checked){
				total =  parseFloat(form1.Total2.value) + parseFloat(amount);

			}else{
				total =  parseFloat(form1.Total2.value) - parseFloat(amount);

			}
			total.toFixed(2);
		form1.Total2.value = total
		document.getElementById("total").innerHTML = "Total $"+total;
	}

All,
I have the following code which validates a form has at least one checkbox checked before it submits it. However I want to make sure that there aren't more then 25 checked on the page. How can I do this?
Code:

function validate(field)
{
for (var i = 0; i < field.length; i++){
    if(field[i].checked){ // if a field is checked form is submitted
        return true;
        }
    }
alert("You need to have a check box selected to submit the form!");
return false; // if no fields are checked form not submitted
}

Thanks in advance!

My form generates 1 to n records which contains check boxes. Based on some condition if I click a check box it has to check & disable some other check boxes automatically. I did it. But, at the same time if I un-check I have to un-check all the check boxes which were checked. Please let me know. Thanks a lot.

I'm new at JavaScript and not sure if what I want to do is possible. This is part of the code from a larger check-in form.

This code adds a new row as needed and should also enable the text fields only after the check box is selected.

It is not working as expected and I am missing what the problem may be or if this is even possible.

Any help would be appreciated.

[CODE]
<!DOCTYPE html>
<html lang="en">
<title></title>

<script type="text/javascript"><!--
function addRow()
{
tabBody=document.getElementById("data");
row=document.createElement("TR");
cell1 = document.createElement("TD");
checknode1 = document.createTextNode("\u00a0\u00a0\u00a0\u00a0");
checknode2 = document.createElement("input");
checknode2.name="guest[]";
checknode2.id='guest[]';
checknode2.type="checkbox";
checknode2.setAttribute('onclick', 'disablefields();');
cell2 = document.createElement("TD");
textnode1 = document.createTextNode("\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0");
textnode2=document.createElement("input");
textnode2.type="text";
textnode2.name='guestc[]';
textnode2.id='guestc[]';
textnode2.setAttribute('disabled','');
textnode2.size="7";
textnode2.maxlength="9";
textnode2.setAttribute('onkeyup', 'this.value = this.value.toUpperCase();');
cell3 = document.createElement("TD");
textnode3=document.createElement("input");
textnode3.type="text";
textnode3.name="guestn[]";
textnode3.id='guestn[]';
textnode3.setAttribute('disabled','');
textnode3.size="20";
textnode3.maxlength="30";
cell4 = document.createElement("TD");
checknode3 = document.createTextNode("\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0");
checknode4 = document.createElement("input");
checknode4.name="food[]";
checknode4.id='food[]';
checknode4.type="checkbox";
checknode4.value="breakfast";

cell1.appendChild(checknode1);
cell1.appendChild(checknode2);
row.appendChild(cell1);
tabBody.appendChild(row);
cell2.appendChild(textnode1);
cell2.appendChild(textnode2);
row.appendChild(cell2);
tabBody.appendChild(row);
cell3.appendChild(textnode3);
row.appendChild(cell3);
tabBody.appendChild(row);
cell4.appendChild(checknode3);
cell4.appendChild(checknode4);
row.appendChild(cell4);
tabBody.appendChild(row);
}
-->
</script>


<SCRIPT LANGUAGE="JavaScript"> <!--
function disablefields(){
if (document.getElementById('guest[]').checked == 0){
document.getElementById('guestc[]').disabled='disabled';
document.getElementById('guestc[]').value='';
document.getElementById('guestn[]').disabled='disabled';
document.getElementById('guestn[]').value='';
document.getElementById('food[]').disabled='disabled';
document.getElementById('food[]').value='';
}else{
document.getElementById('guestc[]').disabled='';
document.getElementById('guestc[]').value='Call Sign';
document.getElementById('guestn[]').disabled='';
document.getElementById('guestn[]').value='Enter Name';
document.getElementById('food[]').disabled='';
document.getElementById('food[]').value='breakfast';
}
}
-->
</SCRIPT>

</head>
<body>
<form name="checkin" method="post">
<table>
<tbody id="data">
<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;<input type="checkbox" name="guest[]" id="guest" onclick="disablefields()"></td>
<td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type="text" disabled name="guestc[]" id="guestc[]" size="7" maxlength="9" value="" onkeyup="this.value = this.value.toUpperCase();" /></td>
<td><input type="TEXT" name="guestn[]" disabled id="guestn[]" size="20" maxlength="30" value=""></td>
<td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type="checkbox" name="food[]" disabled id="food[]" value="breakfast"></td></tr>
</tbody>
</table>

<table border="0" width="100%">
<tr>
<td><input type="button" value="Add new check-in" onclick="addRow();" /></td>
</tr>
</table>
</form>
</body>
</html>
[CODE]

hi again

i have form with

name
age
payment mode ( combo boxe include payment mode 1,payment mode 2 , payment mode 3)



when i select a payment mode-01 enabbleling 5 combo boxes

if slect payment mode 2 dissabling that combo boxes...


how do i do this thing

plzz give me sample code......................

Hi,
Well I wanted to ask that how to disable the function of hide button in meebo bar, its that small arrow like button on the right side, which is when clicked hides meebo bar, I want to disable it, so that even if it is clicked it doesn't hide the bar.
To see the bar you can visit http://www.meebo.com/websites

been trying to get the selection in the first field to change the next field only if the first selection is 'other'

I do not get any errors and my code could be completely wrong.

Can anyone see why the selection will not change the next fields status.

Code:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script type="text/javascript">
<!--
function check_select(form, selection, other) {
	var theform = document.getElementById(form);
	var theselection = theform.selection.value;
	if ((theselection == "other")) {
									theselection.disabled = false;
									} else {
											theselection.disabled = true;
											}
}
-->
</script>
</head>

<body>
<form id="form1" name="form1" method="post" action="">
  <select name="selection" onChange="check_select('form1', 'selection', 'other')">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
    <option value="other">other</option>
  </select>
  <br>
  <br>
  <input id="other" type="text" name="other" disabled>
</form>
</body>
</html>

Disable Arrow Keys

I am creating an online flash gaming site, Aaron's Game Zone: http://azzaboi.weebly.com

Some of the games on it use the arrow keys, however IE also uses them to scroll the page. I am learning JavaScript and am trying to write some script to pervent the page scrolling up and down while playing a game.

For example...

Guardian Rock uses the arrow keys to slide around, at the same time the page scrolls. http://azzaboi.weebly.com/guardianrock.html

Here is the script I've tried to write to pervent the scrolling:

Code:

<script type="text/javascript"> 
  function KeyPressHappened(e){ 
      if (!e) e=window.event;
      var key=e.charCode ? e.charCode : e.keyCode ? e.keyCode : 0; 
      if(key == 37 || key == 38 || key == 39 || key == 40) 
      { 
          e.preventDefault(); 
          return false; 
      } 
      return true; 
  } 
  document.onkeypress = KeyPressHappened;
</script>

There's a bug in it or it's not correct, no error message given, could anyone point out the mistake please?

actually, the subject pretty much is the question, but if you want more detail, here goes:

the below function:
Code:

function centerAndZoom(line) {
  bounds = line.getBounds();
  map.setCenter(bounds.getCenter(map), map.getBoundsZoomLevel(bounds));
}

pans and zooms the map when the user selects a line, which is really useful about 95% of the time and kind of annoying 5% of the time. So I was thinking it would be good to give them the option of disabling that function for the 5%.

the function gets called from a couple of different places in the code, so for neatness' sakes it would be nice to have something within the function above that checks for the checkbox state before executing. but some kind of if/else where the function gets called would be ok, too... I'm not really fussy.

thanks in advance.

Hello all, i am new to forum.
I am working with a javascript for that I want to have the table disable when the page loads and enable only if the user checks the checkbox. Can anyone help me with this?--

here is my code

<script type="text/javascript">
function hideshow(){
var cells=document.getElementById('tab').getElementsByTagName('td'), i=0, c;
var chb=document.getElementById('chboxes').getElementsByTagName('input');
while(c=cells[i++]){
c.style.display=chb[c.cellIndex].checked?'':'none';
}
}
function setEvent(){

var chb=document.getElementById('chboxes').getElementsByTagName('input'), i=0, c;

while(c=chb[i++]){

if(c.type=='checkbox'){c.onclick=function(){hideshow()}}
}
}
onload=setEvent;



Thanks in advance