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Deselect a radio button in qualtrics

Is there a way to use the qualtrics javascript api (or, if not, a workaround) to programatically clear all entries made to radio buttons on a page?
My usage case is in a matrix table question that "pipes" (actually uses embedded data) values from the previous question to puts calculated numbers into the statements. However, if the respondent navigates back then when the return to the following question the numbers have changed but the responses have remained. As such, if it is the second time a respondent is viewing a page constructed like this, I want to clear all their previous answers.
I want to make sure that qualtrics' data is updated properly.
My survey is currently using the JFE engine if that makes a difference.

Qualtrics.SurveyEngine.addOnload(function() {
var QID = this.questionId;
var that = this;
var counts = [];
var radioButtonsClean = [];
var radioButtons = $(QID).getElementsByTagName('input');
var radioIndex = [];
for(var i=0; i<radioButtons.length; i++) {
if(radioButtons[i].type == 'radio') {
radioButtonsClean.push(radioButtons[i]);
radioIndex.push(radioButtons[i].id);
}
}
// Set counts for each displayed radio button to 0
for(var i=0; i<radioButtonsClean.length; i++) {
counts[i] = 0;
}
this.questionclick = function(event,element){
if (element.type == 'radio') {
var thisId = element.id;
var spotCheck = radioIndex.indexOf(thisId);
var count = counts[spotCheck];
if (count == 0) {
for(var i=0; i<counts.length; i++) {
counts[i] = 0;
}
counts[spotCheck] = 1;
}
else {
this.setChoiceValue(element.id.split('~')[2], element.id.split('~')[3], false);
counts[spotCheck] = 0;
}
}
}
});

jQuery: Reset classes once the field is empty

NOTE:
The following solution comes from THIS TOPIC, please see that first.
I have 11 inputs:
<input type="text" class="[something]-input inputs">
(Where [something] is a name, different for every input)
$(document).on("change", ".inputs", function(){
var thisclass = $(this).attr('class').split("-")[0];
if($(this).val() == ''){
//
}
highlightInputNumbers(thisclass, 0);
});
The highlightInputNumbers function goes this way:
function highlightInputNumbers(classe, stepcount, empty){
var all= $("td[class*="+classe+"]");
var index = all.length-1;
var concat_steps = $(all[index]).html().split('.')
//var due_serie = $(all[index]).html().split('.')
var due_serie = $('.'+classe+'-input').val().split('.')
for (var i = index; i >= (index-stepcount)+2; i--) {
due_serie = due_serie.concat($(all[i-1]).html().split('.'));
};
//Rimuovo i doppioni
var serieCompleta = [];
$.each(due_serie, function(i, el){
if($.inArray(el, serieCompleta) === -1) serieCompleta.push(el);
});
//Ottengo dati
for(var s = 0; s < index-(stepcount-1); s++){
var bar = $(all[s]);
var barnum = bar.html().split('.');
bar.html('');
var found = 0;
for(i = 0; i<= barnum.length-1; i++){
for(n = 0; n<= serieCompleta.length-1; n++){
if(i != 4){ var punto = '.' }else{ var punto = ''}
/* Problem here:*/
if(barnum[i] == serieCompleta[n]){
bar.append('<span class="highlight">'+barnum[i]+'</span><span class="fade">'+punto+'</span>');
found = barnum[i];
}
}
if(barnum[i] != found){
bar.append('<span class="fade">'+barnum[i]+punto+'</span>');
}
}
}
}
Where I commented /*Problem here*/ is where I highlight the numbers in the column (that I have inserted), but if I remove the numbers in the input they stay highlighted... If I change them it keeps the old ones..
As you can see here: https://dl.dropboxusercontent.com/u/2276958/Cols_and_rows.mov

Small addition in your code.
Let me try to explain what was happening in your code.
At first try:
your code gets the input values (eg. 89.30.20)
Loop through all available values in the table
Split each value by '.'
Then loop through these spitted values to check for match and highlight
Replace the matched number to highlighted span (i.e 20 to 20 and unmatched number to faded span.
This all works for first time. But at the second try, your code breaks from step 3. As in step 3 code tries to split values by '.' but the values were replaced with Span values in your first try. So now to rectify this issue I added small check and 2-3 lines of extra code to extract actual values from Span values.
That extra code is:
// Check if values bar already contains Span tags (means already processed in first try
var hasSpans = bar.find('span').length>0;
if(hasSpans)
{
//If yes then extract the actual values from these span tags without '.' (This will work for all tries after FIRST)
barnum=bar.find('span').map(
function() {
if($(this).html() != '.')
return $(this).html().replace('.','');
}).get();
}
// else normal case, split the values by '.' (This will for very FIRST try)
else barnum = bar.html().split('.');
$(document).on("change", ".inputs", function(){
var thisclass = $(this).attr('class').split("-")[0];
if($(this).val() == ''){
//
}
highlightInputNumbers(thisclass, 0);
});
function highlightInputNumbers(classe, stepcount, empty){
var all= $("td[class*="+classe+"]");
var index = all.length-1;
var concat_steps = $(all[index]).html().split('.')
//var due_serie = $(all[index]).html().split('.')
var due_serie = $('.'+classe+'-input').val().split('.')
for (var i = index; i >= (index-stepcount)+2; i--) {
due_serie = due_serie.concat($(all[i-1]).html().split('.'));
};
//Rimuovo i doppioni
var serieCompleta = [];
$.each(due_serie, function(i, el){
if($.inArray(el, serieCompleta) === -1) serieCompleta.push(el);
});
//Ottengo dati
for(var s = 0; s < index-(stepcount-1); s++){
var bar = $(all[s]);
var barnum;
var hasSpans = bar.find('span').length>0;
if(hasSpans)
{
barnum=bar.find('span').map(
function() {
if($(this).html() != '.')
return $(this).html().replace('.','');
}).get();
}
else barnum = bar.html().split('.');
bar.html('');
var found = 0;
for(i = 0; i<= barnum.length-1; i++){
for(n = 0; n<= serieCompleta.length-1; n++){
if(i != 4){ var punto = '.' }else{ var punto = ''}
/* Problem here:*/
if(barnum[i] == serieCompleta[n]){
bar.append('<span class="highlight">'+barnum[i]+'</span><span class="fade">'+punto+'</span>');
found = barnum[i];
}
}
if(barnum[i] != found){
bar.append('<span class="fade">'+barnum[i]+punto+'</span>');
}
}
}
}
span.highlight{
color:green;
font-weight:bold;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tr><td>02/05/2015</td><td class="bari1">89.10.86.30.65</td></tr>
<tr><td>30/04/2015</td><td class="bari2">96.11.73.36.13</td></tr>
<tr><td>02/05/2015</td><td class="bari3">78.34.50.72.11</td></tr>
<tr><td>30/04/2015</td><td class="bari4">34.78.69.60.22</td></tr>
<tr><td>02/05/2015</td><td class="bari5">12.29.30.69.33</td></tr>
<tr><td>30/04/2015</td><td class="bari6">59.10.20.96.44</td></tr>
<tr><td colspan="2"><input type="text" class="bari-input inputs"></td></tr>
</table>
<table>
<tr><td>02/05/2015</td><td class="vari1">89.10.86.30.65</td></tr>
<tr><td>30/04/2015</td><td class="vari2">96.11.73.36.13</td></tr>
<tr><td>02/05/2015</td><td class="vari3">78.34.50.72.11</td></tr>
<tr><td>30/04/2015</td><td class="vari4">34.78.69.60.22</td></tr>
<tr><td>02/05/2015</td><td class="vari5">12.29.30.69.33</td></tr>
<tr><td>30/04/2015</td><td class="vari6">59.10.20.96.44</td></tr>
<tr><td colspan="2"><input type="text" class="vari-input inputs"></td></tr>
</table>

two delimiters output formatting javascript

I thought this would be easier, but running into a weird issue.
I want to split the following:
theList = 'firstword:subwordone;subwordtwo;subwordthree;secondword:subwordone;thirdword:subwordone;subwordtwo;';
and have the output be
firstword
subwordone
subwordtwo
subwordthree
secondword
subwordone
thirdword
subwordone
subwordtwo
The caveat is sometimes the list can be
theList = 'subwordone;subwordtwo;subwordthree;subwordfour;'
ie no ':' substrings to print out, and that would look like just
subwordone
subwordtwo
subwordthree
subwordfour
I have tried variations of the following base function, trying recursion, but either get into infinite loops, or undefined output.
function getUl(theList, splitOn){
var r = '<ul>';
var items = theList.split(splitOn);
for(var li in items){
r += ('<li>'+items[li]+'</li>');
}
r += '</ul>';
return r;
}
The above function is just my starting point and obviously doesnt work, just wanted to show what path I am going down, and to be shown the correct path, if this is totally off base.

It seems you need two cases, and the difference between the two is whether there is a : in your string.
if(theList.indexOf(':') == -1){
//Handle the no sublist case
} else {
//Handle the sublist case
}
Starting with the no sublist case, we develop the simple pattern:
var elements = theList.split(';');
for(var i = 0; i < elements.length; i++){
var element = elements[i];
//Add your element to your list
}
Finally, we apply that same pattern to come up with the implementation for the sublist case:
var elements = theList.split(';');
for(var i = 0; i < elements.length; i++){
var element = elements[i];
if(element.indexOf(':') == -1){
//Add your simple element to your list
} else {
var innerElements = element.split(':');
//Add innerElements[0] as your parent element
//Add innerElements[1] as your child element
//Increment i until you hit another element with ':', adding the single elements each increment as child elements.
//Decrement i so it considers the element with the ':' as a parent element.
}
}

Keep track of the current list to add items to, and create a new list when you find a colon in an item:
var baseParent = $('ul'), parent = baseParent;
$.each(theList.split(';'), function(i, e) {
if (e.length) {
var p = e.split(':');
if (p.length > 1) {
baseParent.append($('<li>').append($('<span>').text(p[0])).append(parent = $('<ul>')));
}
parent.append($('<li>').text(p[p.length - 1]));
}
});
Demo: http://jsfiddle.net/Guffa/eWQpR/
Demo for "1;2;3;4;": http://jsfiddle.net/Guffa/eWQpR/2/

There's probably a more elegant solution but this does the trick. (See edit below)
function showLists(text) {
// Build the lists
var lists = {'': []};
for(var i = 0, listKey = ''; i < text.length; i += 2) {
if(text[i + 1] == ':') {
listKey = text[i];
lists[listKey] = [];
} else {
lists[listKey].push(text[i]);
}
}
// Show the lists
for(var listName in lists) {
if(listName) console.log(listName);
for(var j in lists[listName]) {
console.log((listName ? ' ' : '') + lists[listName][j]);
}
}
}
EDIT
Another interesting approach you could take would be to start by breaking it up into sections (assuming text equals one of the examples you gave):
var lists = text.match(/([\w]:)?([\w];)+/g);
Then you have broken down the problem into simpler segments
for(var i = 0; i < lists.length; i++) {
var listParts = lists[i].split(':');
if(listParts.length == 1) {
console.log(listParts[0].split(';').join("\n"));
} else {
console.log(listParts[0]);
console.log(' ' + listParts[1].split(';').join("\n "));
}
}

The following snippet displays the list depending on your requirements
var str = 'subwordone;subwordtwo;subwordthree;';
var a = []; var arr = [];
a = str;
var final = [];
function split_string(a){
var no_colon = true;
for(var i = 0; i < a.length; i++){
if(a[i] == ':'){
no_colon = false;
var temp;
var index = a[i-1];
var rest = a.substring(i+1);
final[index] = split_string(rest);
return a.substring(0, i-2);
}
}
if(no_colon) return a;
}
function display_list(element, index, array) {
$('#results ul').append('<li>'+element+'</li>');
}
var no_colon_string = split_string(a).split(';');
if(no_colon_string){
$('#results').append('<ul><ul>');
}
no_colon_string.forEach(display_list);
console.log(final);
working fiddle here

Comparing two variables sting array to see if any value matches - javascript jquery

Hi I am trying to compare two arrays to each other and then hide a list element if any of the values match.
One array is tags that are attached to a list item and the other is user input.
I am having trouble as I seem to be able to cross reference one user input work and can't get multiple words against multiple tags.
The amount of user input words might change and the amount of tags might change. I have tried inArray but have had no luck. Any help would be much appreciated. See code below:
function query_searchvar() {
var searchquery=document.navsform.query.value.toLowerCase();
if (searchquery == '') {
alert("No Text Entered");
}
var snospace = searchquery.replace(/\s+/g, ',');
event.preventDefault();
var snospacearray = snospace.split(',');
$('li').each(function() {
var searchtags = $(this).attr('data-searchtags');
//alert(searchtags);
var searcharray = searchtags.split(',');
//alert(searcharray);
var searchtrue=-1;
for(var i = 0, len = searcharray.length; i < len; i++){
if(searcharray[i] == searchquery){
searchtrue = 0;
break;
}
}
if (searchtrue == 0) {
$(this).show("normal");
}
else {
$(this).hide("normal");
}
});
}
Okay so I've tried to implement the code below but have had no luck. It doesn't seem to check through both arrays.
function query_searchvar()
{
var searchquery=document.navsform.query.value.toLowerCase();
if(searchquery == '')
{alert("No Text Entered");
}
var snospace = searchquery.replace(/\s+/g, ' ');
event.preventDefault();
var snospacearray = snospace.split(' ');
alert(snospacearray[1]);
$('li').each(function() {
var searchtags = $(this).attr('data-searchtags');
alert(searchtags);
var searcharray = searchtags.split(' ');
alert(searcharray[0]);
jQuery.each(snospacearray, function(key1,val1){
jQuery.each(searcharray,function(key2,val2){
if(val1 !== val2) {$(this).hide('slow');}
});
});
});
}
Working code:
function query_searchvar()
{
var searchquery=document.navsform.query.value.toLowerCase();
if(searchquery == '')
{alert("No Text Entered");
}
var queryarray = searchquery.split(/,|\s+/);
event.preventDefault();
$('li').each(function() {
var searchtags = $(this).attr('data-searchtags');
//alert(searchtags);
var searcharray = searchtags.split(',');
//alert(searcharray);
var found = false;
for (var i=0; i<searcharray.length; i++)
if ($.inArray(searcharray[i], queryarray)>-1) {
found = true;
break;
}
if (found == true )
{
$(this).show("normal");
}
else {
$(this).hide("normal");
}
});
}

var snospace = searchquery.replace(/\s+/g, ',');
var snospacearray = snospace.split(',');
Note that you can split on regular expressions, so to the above would equal:
var queryarray = searchquery.split(/,|\s+/);
To find whether there is an item contained in both arrays, use the following code:
var found = searcharray.some(function(tag) {
return queryarray.indexOf(tag) > -1;
});
Although this will only work for ES5-compliant browsers :-) To support the others, use
var found = false;
for (var i=0; i<searcharray.length; i++)
if ($.inArray(searcharray[i], queryarray)>-1) {
found = true;
break;
}
In plain js, without jQuery.inArray:
var found = false;
outerloop: for (var i=0; i<searcharray.length; i++)
for (var j=0; j<queryarray.length; j++)
if (searcharray[i] == queryarray[j]) {
found = true;
break outerloop;
}
A little faster algorithm (only needed for really large arrays) would be to sort both arrays before running through them linear.

Here's psuedo code that should solve your problem.
get both arrays
for each item in array 1
for each element in array 2
check if its equal to current element in array 1
if its equal to then hide what you want
An example of this coude wise would be
jQuery.each(array1, function(key1,val1){
jQuery.each(array2,function(key2,val2){
if(val1 == val2) {$(your element to hide).hide();}
});
});
If there's anything you don't understand please ask :)

Can we get radiobuttonList.Items.Count in .aspx page

Can we get the count of total radiobuttonlist items from .aspx page. I have to call a javascript function onclientclick of a button and i want to loop through the total number of radiobuttonlist items. So can anyone tell me that can we get it from .aspx page. Because in my scenario i can not use code behind for this.
function ClearRBL() {
for (i = 0; i < RBLCOUNT; i++) {
document.getElementById('rblWorkerList_' + [i]).checked = false;
}
}
How can i get RBLCOUNT here from .aspx page only? If not possible then in Javascript please.

I don't know how the aspx side would work, but if you want to do it just in JavaScript you could do something like the following that doesn't need to know the total number of elements in advance:
function ClearRBL() {
var i = 0,
rbl;
while (null != (rbl = document.getElementById('rblWorkerList_' + i++)))
rbl.checked = false;
}
The above assumes that the element ids end in numbers beginning with 0 counting up by 1s; the while loop will keep going until document.getElementById() doesn't find a matching element (in which case it returns null). A less cryptic way of writing it is as follows:
function ClearRBL() {
var i = 0,
rbl = document.getElementById('rblWorkerList_' + i);
while (null != rbl) {
rbl.checked = false;
i++;
rbl = document.getElementById('rblWorkerList_' + i);
}
}
P.S. When the while loop finishes i will be equal to the number of radio buttons, which may be useful if you want to do something with that number afterwards.

Try this:- This is not exactly what you want but hope it will help you.
function GetRBLSelectionID(RadioButtonListID) {
var RB1 = document.getElementById(RadioButtonListID);
var radio = RB1.getElementsByTagName("input");
var isChecked = false;
var retVal = "";
for (var i = 0; i < radio.length; i++) {
if (radio[i].checked) {
retVal = radio[i].id;
break;
}
}
return retVal;
}

you can give a name all radio button and then get them like this.
var RBLCOUNT= document[groupName].length;
or
var RBLCOUNT= 0;
var inputs = document.getElementsByTagName('input');
for (var i = 0; i < inputs.length; ++i) {
if(inputs[i].type =="radio"){
RBLCOUNT++;
}
}

I just created a javascript function as mentioned by Karthik Harve and found the total number of rows generated dynamically as below: -
function ClearRBL() {
var rblLen = document.getElementById('rblWorkerList');
for (i = 0; i < rblLen.rows.length; i++) {
document.getElementById('rblWorkerList_' + [i]).checked = false;
}
}
It's working on both Mozila and IE.
Thanks alot to all who tried to help.