Use Variables In Document.form.Q[0].value Statements
Oct 7, 2009
I am trying to write a multiple-choice quiz for my chemistry class where ten questions are selected randomly from a block of about 100; then I want the students to click a button and grade their quiz. I have stored the questions in an array named Q and each radio button has a name property corresponding to the array entry (the buttons in Q[1] have the name Q1, etc.). I generate the exam in the body of the page between form tags using a document.write statement and all of the questions and buttons appear properly. I cannot, however, figure out how to get the value of the button that has been checked for the randomly selected questions.
As the questions are selected, I record the question number as a variable; for example �Qnumber1 = Q(random_num)�. The variable does, in fact, have the proper value (for example Q1) but when I try to read the value of the radio buttons in the Q1 set using:
document.form1.Qnumber1[0].value
it doesnt work!
View 6 Replies
ADVERTISEMENT
Apr 18, 2011
I'm having some trouble with the Switch Statements. My program runs without it so I know that the problem is here. I believe the logic is sound so it may be due to incorrect syntax. The purpose of this function is to create bars, and the length of the bars is determined by the value of the "percent" variable (which is working fine) in the For loop after the Switch statements. The variable, "partyType" contains any of the text strings, such as "I", "D", etc.
function createBar(partyType,percent){
var barText;
switch(partyType){
case "D":
barText="<td class='dem'></td>";
break;
case "R":
barText="<td class='rep'></td>";
break;
case "I":
barText="<td class='ind'></td>";
break;
case "G":
barText="<td class='green'></td>";
break;
case "L":
barText="<td class='lib'></td>";
break;
default: document.write("hi");
}
for(var i=1; i<percent; i++){
document.write(barText);
}}}
View 1 Replies
View Related
Sep 22, 2009
I have a series of videos which must be loaded dynamically on their pages which then get loaded into an iframe. I need to be able to load these videos using variables for the width and height. It's imperative that I use variables as the sizes of the movies will be determined by the user's resolution.
Here's the code I'm currently using <script type="text/javascript">
var dimW = screen.width;
var dimH = screen.height;
var w1 = dimW.toString();
var h1 = dimH.toString();
document.write('<OBJECT ID="Player" width="'+w1+'" height="'+h1+'" CLASSID="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" style=border:0px;">
'); .....
I'm developing in xhtml so naturally, IE doesn't recognize the document.write statements and the page comes up blank in IE. It works flawlessly in FireFox (as expected). So, I need to replace the document.write statements with something else while still being able to pass variables for the movie objects height & width.
I've tried this code: <script type="text/javascript">
//alert("The beginning");
var dimW = window.innerWidth;
var dimH = window.innerHeight;
var w1 = dimW.toString();
var h1 = dimH.toString(); .....
document.getElementById('mediaPlayer').appendChild(theNewMovie);
</script>. I then have a <td> with the id of "mediaPlayer" but nothing is showing up. Most likely because I'm still fairly new to javascript and am probably forgetting or overlooking something.
View 18 Replies
View Related
Jul 23, 2005
I have a PHP page generating a list of items. I've made it so that
each one has a radiobutton with a unique value. You can click on the
radiobutton and it will change the value of a text field to the value
of the radiobutton--all that works fine!
Now, I need to also have it populate a textfield with the value of a
textfield in the row that's selected.
I can make unique field names, no problem. I think my problem is
getting the javascript written so that it recognizes the variable.
Well, see below. As it's written below, the textfield "itemqty" always
has the value "NaN" (wherever THAT comes from) no matter which
radiobutton I select.
View 1 Replies
View Related
Sep 1, 2011
Currently I have the following script:-
function validate_form(){
if(regform.reguser.value == ""){
alert("Please completed the selected box");[code]....
to validate a simple registration form, however I initially tried to streamline this function by cycling through an array using a loop to point to various input elements in the HTML page itself. I found that when trying to use a variable in the aforementioned if statements the javascript failed to work i.e.
var test = "reguser";
if(regform.test.value = ""){
}
I know the javascript is looking for the input element "test" instead of "reguser" but is there any way I can force it to look for the contents of the variable.
View 2 Replies
View Related
Jan 15, 2009
This is what i'm working with now but can only get one function to validate. This is the script I have so far. With credit going to pmw57 Need to be able to validate more than just one function.
<script language="javascript" type="text/javascript">
var form = document.getElementById('healthwiseorder');
form.onsubmit = validateForm;
function validateForm() {
[Code]....
View 6 Replies
View Related
Sep 22, 2010
I'm just learning javascript and am editing a calculator form that will calculate square footage and write to a form text field. I have another form filed that I would like to display a number based a series of if else statements. ex: if square footage > 2761 then display 5.0., if square footage > 2521 then display 4.5. etc.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "<HTML>
<HEAD><TITLE>Size Calculator</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function CalculateSum(Atext, Btext, form){
var A = parseFloat(Atext);
var B = parseFloat(Btext);
form.Footage.value = A * B;
form.Size.value = 21;
}
/* ClearForm: this function has 1 argument: form.
It clears the input and answer fields on the form.
It needs to know the names of the INPUT elements in order to do this. */
function ClearForm(form){
form.input_A.value = "";
form.input_B.value = "";
form.Footage.value = "";
form.Size.value = "";
}
// end of JavaScript functions -->
</SCRIPT></HEAD><BODY>
<P><FONT SIZE="+2">Sizing Calculator</FONT></P>
<FORM NAME="Calculator" METHOD="post">
<P>House width (ft): <INPUT TYPE=TEXT NAME="input_A" SIZE=10></P>
<P>House length (ft): <INPUT TYPE=TEXT NAME="input_B" SIZE=10></P>
<P><INPUT TYPE="button" VALUE="Calculate" name="Calculate" onClick="CalculateSum(this.form.input_A.value, this.form.input_B.value, this.form)"></P>
<P><INPUT TYPE="button" VALUE="Clear Fields" name="ClearButton" onClick="ClearForm(this.form)"></P>
<P>Square footage = <INPUT TYPE=TEXT NAME="Footage" SIZE=12></P>
<P>Size = <INPUT TYPE=TEXT NAME="Size" SIZE=12></P>
</FORM></BODY></HTML>
View 4 Replies
View Related
Nov 21, 2006
I met a problem when using document.evaluate() to get text content
using XPath, my code is as follows:
nodes = document.evaluate("/html/body/div/ul[1]/li[5]", document,
null,XPathResult. UNORDERED_NODE_SNAPSHOT_TYPE , null);
in the XPath expression "/html/body/div/ul[1]/li[5]", I need to
traverse from li[1] to li[5],
so I should use a variable here , like this:
for (index =1; index<6; i++)
{
nodes = document.evaluate("/html/body/div/ul[1]/li[index]", ....);
// the variable index here is invalid!
}
my question is: How to use the variable in XPath expression?
View 1 Replies
View Related
May 17, 2009
When assigning a value to a variable within a function, does that variables value become available to other functions within the document?
View 2 Replies
View Related
Jan 17, 2009
my url read index.html?pagego=collections
here it he code I have that is pulling the variables from the URL
function getUrlVars(){
var vars = [], hash;
var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
[Code]....
and here is the code I use to alert
var hash = getUrlVars();
alert(hash['pagego']);
this works perfectly and alerts with the variable when I load he page.
Now when i am embedding my flash file i want to pass the variable to my flash by just adding the variable value to my embed code.
how can I do this?
here is my swf embed code
var so = new SWFObject("main2.swf?pagego="+THIS IS WHERE I WANT THE VARIABLE TO BE, "Preview", "100%", "100%", "9", "#ffffff", true);
so.addParam("scale", "noscale");
so.addParam("salign", "lt");
so.write("flashcontent");
View 1 Replies
View Related
Nov 1, 2011
<html>
<head>
<script type="text/javascript">
var a = january
var b = febuary
var c = march
function test()
[Code]...
I tried to explain it pretty well in the comment tags
View 21 Replies
View Related
Mar 2, 2006
I am having a problem with the submit() method that is driving me nuts. I'm using document.form.submit() with large text fields (approx. 2000 characters) and am getting a "Invalid Syntax" error. If I do the same thing with a text field of under 1500 characters, it works fine.
Is there some size limit here that I don't know about?
View 2 Replies
View Related
Nov 12, 2005
I am sure if I searched long enough I could find the answer, but to save time I would appreciate help with the # statements, such as #include, #csstopmenu, etc which I find in the scripts here and elsewhere. I know that #include is used with shtml to include another html page. What are the others? Is there a definitive list, and if so where can I find it?
View 2 Replies
View Related
Oct 9, 2005
This code uses a nested IF statement to put a pack of cards into an array of records.
But for some reason the cards arn't going in.. like.. at all? I've put a document.write piece of code at end to display the card in the first slot and [object Object] appears? Code:
View 2 Replies
View Related
Mar 25, 2011
I apologise for any complexity of the following script, but what I am trying to achieve is
1.) At 6:51 am, the image sunrise.png is written as the background of #wrap
2.) At 12:04 midnight through 12:07 midnight, the background of #wrap is green.png then
3.) Then, at a random time at night that is not 6:51 am nor in-between 12:04 midnight & 12:07 midnight, the background of #wrap is set as aurora.png
This is the code of if statments that I wrote to achieve it:
[Code]...
View 2 Replies
View Related
Mar 3, 2006
I have a form and if the user presses submit, and the "password" and "retypepwd" are the same. Does anyone know how, and where to include a variable that if "password" and "retypepwd" are the same, the page is redirected to success.htm and if they are not the same, fail.htm?
View 4 Replies
View Related
Apr 16, 2007
So I have some code like:
if (document.Insurance.State.selectedIndex == 1)
{
ifIll();
}
else if (document.Insurance.State.selectedIndex == 2)
{
elseKan();
}
else if (document.Insurance.State.selectedIndex == 3)
{
elseInd();
}
I am trying to replace the if-else statements with case statement as
follows:
var index = document.Insurance.State.selectedIndex;
switch (index)
{
case 1:
ifIll()
break
case 2:
elseKan()
break
case 3: elseInd()
break
}
This code doesn't work ! Am I missing something here?
View 17 Replies
View Related
Mar 5, 2009
I need to test the contents of three fields to validate which contain text, and based on the results, set additional variables. I'm sure this is falling off the log simple, and I got it to work in PHP, but am having problems getting the syntax correct in Javascript.
In a nutshell, if a front AND a rear msg is entered, the price is $115, else the price is $80. I'm sure there's an easier way to code this than what I've done, but I don't know how to correctly perform several && and || in the same comparison.
Here's the PHP...
function notEmpty(){
var FrontMsgTxtTop = document.getElementById('FrontMsgTxtTop').value;
var FrontMsgTxtBottom = document.getElementById('FrontMsgTxtBottom').value;
var RearMsgTxt = document.getElementById('RearMsgTxt').value;
[Code]....
View 3 Replies
View Related
Nov 28, 2001
<script language="javascript">
<!--
self.location.href='#add'
document.addform.txtTitle.focus();
//-->
</script>
the self.location.href='#add' goes to a html anchor on the page, and the focus is supposed to set the cursor inside the first textbox when the statement is run.
if i run it as is, it will go to the anchor like its supposed to, but won't put the cursor in the textbox. if i comment out the first statement, it will put the focus on the textbox.
View 3 Replies
View Related
Oct 4, 2010
I have a very simple script that generates a prompt window. Instead of using a default text, I have left the text field empty. However, I would like a default message to display in the pop up window if the user does not enter a value in the prompt box before clicking okay. I tried adding a conditional statement but the default text does not write in the pop up window.
Here is the code:
Code:
function promptBox(){
var message = prompt("Who is your favorite Hollywood Star?", "");
newWindow = window.open('','','width=800,height=600');
newWindow.document.write(message);
newWindow.focus();
if ((prompt) == null);
document.write("No Value Entered");
}
View 5 Replies
View Related
Apr 5, 2010
I try to figure out how I can merge two onclick in one: The one is opening a "lightbox" div with a fullsize view. Now I would like to count this click with loading a site in an iframe. I am not that known in javascript, therefore my question: Is it possible?
This would load the iframe:
PHP Code:
onclick=parent.fullsize.location='[URL]';
This is the onclick statement in the lightbox.js:
PHP Code:
anchor.onclick=self._genOpener(num)}var body=d.getElementsByTagName("body")[0];
Separated the both onclick are not working. How I can put them together in one onclick? I tried this, but it is not working:
PHP Code:
anchor.onclick=self._genOpener(num)}var body=d.getElementsByTagName("body")[0] && parent.fullsize.location='[URL]';
View 1 Replies
View Related
Nov 21, 2006
I have a table with dynamic html that contains drop down select lists
and readonly text boxes. Dynamic calculations are done on change of a
value in one of the drop down select lists.
For my first iteration the script works fine ( indicating that there
are 33 form variables ). When trying another dropdown select value, the
form elements.length is shown as 33 ( as about ) BUT the script then
crashes with a 'null value' error. I cannot access any of the form
variables - this works in all other browsers and platforms.
View 2 Replies
View Related
Jul 8, 2009
I have a javascript function that receives the form name, field name and value and I want to be able to spit that data back to the originating form after doing some processing on the data.
The values are making it to the function perfectly, but when I try to return those values to the form, it tells me it's not a function. I know there's some syntax problem, but I'm just not sure where!
function doThis(one,two,three){
var myFormName = one;
var myFormField = two;
var myFormValue = three;
var goHere = myFormName + '.' + myFormField;
[Code]...
View 4 Replies
View Related
Mar 1, 2010
The jQuery isn't working when calling elements placed in conditional statements. My sample code is shown below. This code works beautiful if the if/else conditions aren't there. What is the problem? Is there something wrong with my code? Is there a workaround? I absolutely need to use a conditional statement in my production code.
<?php
$test = 'true';
print "
[code]....
View 5 Replies
View Related
Jan 26, 2011
I have this calculator function I made to do some simple math and output the solution in a field on a form. I had it working great until I introduced a radio button. There are no errors and the total is still outputted but the number is off and if I change the radio to the other option it doesn't change the total. Here is my code,
function calculateBudget()
{
var i;
var list = 0;
var listcost = document.getElementsByName('form[listcost]');
[Code]....
View 13 Replies
View Related
Dec 5, 2010
We have to create a number guessing game with a random number between 1 and 50. With a loop that runs exactly 10 times or until you get the number and gives hints that say guess higher or lower. I don't know what I am doing wrong this wont work at all. I am generally lost?
lab14a_KENTDL.html (3.48K)
Number of downloads: 52
View 1 Replies
View Related
