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JavaScript - Only Allow Certain Amount In Textbox Input

Full Excel VBA Course - Beginner to Expert

Only Allow Certain Amount In Textbox Input	View Content

Hi is there a way to only allow a certain numeric amount to be entered into a text input? i.e, Like nothing over 20?

Thanks

Full Excel VBA Course - Beginner to Expert

How To Enable Uncertain Amount Of Textbox With Uncertain Amount Of Radiobutton

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when user populate info it will appear like this:
-------------------------
chkbox | name | number
-------------------------
radbtn | MJ | 234123
radbtn | MD | 343543
radbtn | AB | 453466

Is uncertain that how many info will appear as its from database.
I am able to enable the radbtn with chkbox by getting radbtn name.
How can i enable only the selected radbtn textbox under name and number in order for user to edit it ?

thanks anyone who can solve it!

Using Barcode Input Data To Textbox And Move To Second Textbox The Focus

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Hi..

I have form and i want to input data using barcode and it will display on textbox and after input on the first textbox the focus will go to next textbox untill it will go on the last textbox and on the last textbox it will automatically save the data's on the database.

How is it possible?

here is my sample code:

Code:

<?php
    error_reporting(0);
   date_default_timezone_set("Asia/Singapore"); //set the time zone  
$con = mysql_connect('localhost', 'root','');

if (!$con) {
    echo 'failed';
    die();
}
mysql_select_db("mes", $con);
?>

<html>
<head>
<script type="text/javascript">
function ini()
{

// Retrieve the code
var code =document.getElementById ("code_read_box1").value;
var code =document.getElementById ("code_read_box2").value;
var code =document.getElementById ("code_read_box3").value;
var code =document.getElementById ("code_read_box4").value;
var code =document.getElementById ("code_read_box5").value;
var code =document.getElementById ("code_read_box6").value;
// Return false to prevent the form to submit
return false;

}

</script>
</head>
<body onLoad="document.barcode.code_read_box1.focus()">

<form name=barcode onsubmit = "return ini()">

<input type="text" id="code_read_box1" value="" /><br/>
<input type="text" id="code_read_box2" value="" /><br/>
<input type="text" id="code_read_box3" value="" /><br/>
<input type="text" id="code_read_box4" value="" /><br/>
<input type="text" id="code_read_box5" value="" /><br/>
<input type="text" id="code_read_box6" value="" /><br/>
</form>

</body>
</html>

Moving Value From 1 Input Textbox To Another

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<html>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
<meta http-equiv='Content-Script-Type' content='text/javascript'>
<script type = 'text/javascript'>
function unselectall(form)
{
var i=0;
for(i=0;i<=15;i++)
{
tdname = 'invbox'+i;
if (document.getElementById && document.getElementById(tdname).style)
{
document.getElementById(tdname).style.borderColor = '#000000';
form.selected.value = 0;
}
else
{
i=20;
}
}
}

function selectthis(form, pos)
{
unselectall(form);
var tdname = 'inventory';
document.getElementById(tdname).style.borderColor = '#ffff00';
form.selected.value = form.position1.value;
}

</script>

</head>
<body>
<form id='inventorytable' method='post' action='addflowerlight.php'>
<table id='inventory' border=1>
<tr>
<td id = 'invbox1' ><img src = 'images/Lights/6inv.jpg' onclick="selectthis('inventorytable', 1);"><input type = 'text' id = 'position1' value='6'></td></tr></table>
<input type ='text' id='selected'>
<input type ='submit' value='Equip Light'>
</form>
</body>
</html>

What am I doing wrong? The onclick wont trigger.

Button Then Input In Textbox

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What I want is when the button 'Total' is pressed, the total frame the pictures and frames appears in the textbox.

Here is the code (sorry, it's long):

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script language="javascript" src="jquery-1.3.2.js"></script>
<title>Ivis's Picture Gallery</title>
<script language="javascript">
var price1, price2, price3, price4, price5, price6, price7, price8, price9, price10;
function price()
{
price1 = document.getElementById("price1").innerHTML=price1;
price2 = document.getElementById("price2").innerHTML=price2;
price3 = document.getElementById("price3").innerHTML=price3;
price4 = document.getElementById("price4").innerHTML=price4;
price5 = document.getElementById("price5").innerHTML=price5;
price6 = document.getElementById("price6").innerHTML=price6;
price7 = document.getElementById("price7").innerHTML=price7;
price8 = document.getElementById("price8").innerHTML=price8;
price9 = document.getElementById("price9").innerHTML=price9;
price10 = document.getElementById("price10").innerHTML=price10;
}

function total()
{
var text = document.getElementById("txt1").value;
text = bigImage + bigFrame;
}

function changeImageZebra()
{
$("#bigImage").hide();
$("#bigImage").attr("src", "ZooZebra.gif");
$("#bigImage").fadeIn(3000);

}

function changeImageTiger()
{
$("#bigImage").hide();
$("#bigImage").attr("src", "tiger.jpg");
$("#bigImage").fadeIn(3000);
}

function changeImageGraff()
{
$("#bigImage").hide();
$("#bigImage").attr("src", "graff.jpg");
$("#bigImage").fadeIn(3000);
}

function changeImageBDog()
{
$("#bigImage").hide();
$("#bigImage").attr("src", "boys with dog.jpg");
$("#bigImage").fadeIn(3000);
}

function changeImageSeal()
{
$("#bigImage").hide();
$("#bigImage").attr("src", "seal.jpg");
$("#bigImage").fadeIn(3000);
}

$(document).ready(function(){
$("#zebPic").mouseover(changeImageZebra);
$("#tigPic").mouseover(changeImageTiger);
$("#graffPic").mouseover(changeImageGraff);
$("#bdogPic").mouseover(changeImageBDog);
$("#sealPic").mouseover(changeImageSeal);

});

function changeFrame1()
{
$("#bigFrame").hide();
$("#bigFrame").attr("src", "square.png");
$("#bigFrame").fadeIn(3000);

}

function changeFrame2()
{
$("#bigFrame").hide();
$("#bigFrame").attr("src", "square2.png");
$("#bigFrame").fadeIn(3000);
}

function changeFrame3()
{
$("#bigFrame").hide();
$("#bigFrame").attr("src", "square3.png");
$("#bigFrame").fadeIn(3000);
}

function changeFrame4()
{
$("#bigFrame").hide();
$("#bigFrame").attr("src", "square4.png");
$("#bigFrame").fadeIn(3000);
}

function changeFrame5()
{
$("#bigFrame").hide();
$("#bigFrame").attr("src", "square5.png");
$("#bigFrame").fadeIn(3000);
}

$(document).ready(function(){
$("#frame1").mouseover(changeFrame1);
$("#frame2").mouseover(changeFrame2);
$("#frame3").mouseover(changeFrame3);
$("#frame4").mouseover(changeFrame4);
$("#frame5").mouseover(changeFrame5);

});
</script>
</head>

<body><h1>Frames</h1>
<p> </p>
<p><img src="ZooZebra.gif" id="zebPic" alt="" width="50" height="50" /><div id="price1">$100</div></p>
<p><img src="tiger.jpg" id="tigPic" alt="" width="50" height="50" /><div id="price2">$110</div></p>
<p><img src="graff.jpg" id="graffPic" alt="" width="50" height="50" /><div id="price3">$120</div></p>
<p><img src="boys with dog.jpg" id="bdogPic" alt="" width="50" height="50" /><div id="price4">$130</div></p>
<p><img src="seal.jpg" id="sealPic" alt="" width="50" height="50" /><div id="price5">$140</div></p>
<p> </p>
<hr />
<p> </p>
<div id="sq1"><img src="square.png" id="frame1" width="100" height="100" /> Frame1</div><div id="price6">$50</div>
<div id="sq2"><img src="square2.png" id="frame2" width="100" height="100" /> Frame2</div><div id="price7">$60</div>
<div id="sq3"><img src="square3.png" id="frame3" width="100" height="100" /> Frame3</div><div id="price8">$70</div>
<div id="sq4"><img src="square4.png" id="frame4" width="100" height="100" /> Frame4</div><div id="price9">$80</div>
<div id="sq5"><img src="square5.png" id="frame5" width="100" height="100" /> Frame5</div><div id="price10">$90</div><hr />
<p> </p>
<p><img src="ZooZebra.gif" name="bigImage" align="top" id="bigImage" /><img src="square.png" name="bigFrame" id="bigFrame" /></p>
<p>
<label>
<input type="button" name="btn1" id="btn1" value="Total" onclick="total()" />
</label>
<label>
<input type="text" name="txt1" id="txt1" />
</label>
</p>
<p>
<input type="button" name="btn2" id="btn2" value="To Checkout" />
</p>
<p> </p>
[<a href="galleryindex.htm">Back</a>]
</body>
</html>

Textbox Onblur Adds 1 To Input

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Hello,
I am new to JavaScript and I am asking for help with this problem.
I have a three textboxes in a form. Using OnBlur, I am attempting to call a function to add one to an input textbox to add 1 to the cost.
As the user enters text into textbox01, the number 1 appears in the input box about cost, as the user enters text into textbox02, the input box displays 2 and the user enters text into textbox03, the input box displays 3.

My JavaScript is as follows:
<script type="text/javascript">
//copies contents of first textbox to second textbox
function copyValue() {
var textbox1 = document.getElementById("textbox1");
var textbox2 = document.getElementById("textbox2");

var textbox3 = document.getElementById("textbox3");

var txtAttendee = document.getElementById("txtAttendee");
var input_A = document.getElementById("input_A");

textbox2.value = textbox1.value;
txtAttendee.value = 1;
input_A.value = 1;

}
</script>

In the form I have this:
<input type="text" id="textbox3" style="background-color:yellow" onblur="copyValue();" />

I would greatly appreciate ANY help with being able to calculate costs, perhaps using the JavaScript ++/-- operators.

Thank you in advance for your time and assistance.

Disable Input Textbox For File Upload In Html

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hi,
i am using <input type = "file" id = "upload"> in my html page. i want to disable the textbox of this control so that user cannot type any file location here. user can upload file only through browse button.

is there a way to disable this textbox thru javascript?

thnx

How To Assign Textbox Input Values To Variable In Javascript

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Hi!

I am quite new to the world of JavaScript as I have done basic corse for it...
and I have learnt that best way to understand it is to play around with it...
but now I am stuck with on of the problem!!

Problem: How can we assign text box input values by user to a variable and display that variable back on another element of the same HTML document(dynamically)...

Conditions: The value has to be stored as a JavaScript variable only.

No server-side script is to be used and has to be done locally.
Please help!

Input Data To The Textbox After Read The Barcode Using Barcode Scanner

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Hi..

I just want to know how does it happen that when I scan the barcode using barcode scanner it will automatically put on the first textbox, then the focus will go to the next textbox and on the last textbox will automatically save the data to database.

here is my sample form.

PHP Code:
<?php
   error_reporting(0);
   date_default_timezone_set("Asia/Singapore"); //set the time zone
$con = mysql_connect('localhost', 'root','');

if (!$con) {
    echo 'failed';
    die();
}

mysql_select_db("mes", $con);
$sr_date =date('Y-m-d H:i:s');

$sql = "SELECT sr_number FROM receiving_materials ORDER BY sr_date DESC LIMIT 1";
        $result = mysql_query($sql, $con);

        if (!$result) {
            echo 'failed';
            die();
        }
        $total = mysql_num_rows($result);
        if ($total <= 0) {
            $currentSRNum = 1;
             $currentYear  = (int)(date('y'));
            $currentMonth = (int)(date('m'));
            $currentDay = (int)(date('d'));

            $currentSRYMD = substr($row['sr_number'], 0, 6);
            $currentYMD = date("ymd");
            if ($currentYMD > $currentSRYMD)
            {
                $currentSRNum = 1;
            }
            else
            {
                $currentSRNum += 1;
            }

        }
        else {
//------------------------------------------------------------------------------------------------------------------
            // Stock Number iteration....
            $row = mysql_fetch_assoc($result);

            $currentSRNum = (int)(substr($row['sr_number'],0,3));

            $currentSRYear  = (int)(substr($row['sr_number'],2,2));
            $currentSRMonth = (int)(substr($row['sr_number'],0,2));
            $currentSRNum = (int)(substr($row['sr_number'],6,4));

            $currentYear  = (int)(date('y'));
            $currentMonth = (int)(date('m'));
            $currentDay = (int)(date('d'));

            $currentSRYMD = substr($row['sr_number'], 0, 6);
            $currentYMD = date("ymd");
            if ($currentYMD > $currentSRYMD)
            {
                $currentSRNum = 1;
            }
            else
            {
                $currentSRNum += 1;
            }
        }
//------------------------------------------------------------------------------------------------------------------
        $yearMonth = date('ymd');
        $currentSR = $currentYMD . sprintf("%04d", $currentSRNum);
?>
<html>
<title>Receiving Materials</title>
<head>
<link rel="stylesheet" type="text/css" href="kanban.css" />
<style type="text/css">
#SR_date{
    position: relative;
    font-family: Arial, Helvetica, sans-serif;
    font-size: .9em;
    margin-left: 10px;
    width: auto;
    height: auto;
    float: left;
    top : 10px;

}
</style>

</head>
<body>
<form name="receiving_form" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">

<div id="SR_date">
<label>Date :</label>
<input type="text" name="sr_date" value="<?php echo $sr_date; ?>" size="16" readonly="readonly" style="border: none;">
</div>
<div id="SR_number">
<label>RM# :</label>
<input type="text" name="sr_number" value="<?php echo $currentSR; ?>" size="9" readonly="readonly" style="font-weight: bold; border: none;">
</div>
<div id="SI_number">
<label class="LLabelRM">SI/DR# :</label>
<input type="text" name="si_num" id="si_num" class="LFieldRM" value="" size="25"> <br/></br/>
<label class="LLabelRM">Supplier Name :</label>
<input type="text" name="s_name" id="s_name" class="LFieldRM" value="" size="25">  <br/></br/>
<label class="LLabelSecRM">PO # :</label>
<input type="text" name="po_num" id="po_num" class="LFieldSecRM" value="" size="25">
<label class="LLabelSecRM">Quantity :</label>
<input type="text" name="qty" id="qty" class="LFieldSec1RM" value="" size="25"> <br/> <br/>
<label class="LLabelSecRM">Material Code :</label>
<input type="text" name="mat_code" id="mat_code" class="LFieldSecRM" value="" size="25">
<label class="LLabelSecRM">Material Desc. :</label>
<input type="text" name="mat_desc" id="mat_desc" class="LFieldSec1RM" value="" size="25">  <br/></br/>
<label class="LLabelSecRM">WH Code :</label>
<input type="text" name="wh_code" id="wh_code" class="LFieldSecRM" value="" size="25">
<label class="LLabelSecRM">BIN Location :</label>
<input type="text" name="bin_loc" id="bin_loc" class="LFieldSec1RM" value="" size="25">
</div>
</form>
</body>
</html>

Thank you

How To Change A Textbox Value With Javascript Only When The Textbox Is Empty?

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Hello. I've been teaching myself HTML and CSS for a while, and now I've moved into the world of Javascript (but I'm still very much a beginner). For practice, I've been building a sample sign up form for a mock website, and I'm having problems with the birthdate section. The idea I had was to have MM, DD, and YYYY be the default values of my 3 textboxes (as an example for users), then set the value to nothing when the box gained focus. That all works fine, but I ran into problems when I tried to write an if statement to set the value back to MM, DD, or YYYY if the value was still nothing when the user clicked away. As it is now it just replaces the text inputted into the textbox (which of course is not good). Any ideas for what the problem might be?

Code:

<form name="signup" action="javascript:void(0);" method="post">

<table>
	<tr>
		<td>Date Of Birth:</td>
		<td>
		<input name="DOBmonth" type="text" value="MM" size="2" style="color: #555555;" onFocus="clearDOBmonth()" onBlur="restoreDOBmonth()" />
		<input name="DOBday" type="text" value="DD" size="2" style="color: #555555;" onFocus="clearDOBday()" />
		<input name="DOByear" type="text" value="YYYY" size="4" style="color: #555555;" onFocus="clearDOByear()" /></td>
	</tr>
	<tr>
		<td></td>
		<td><button name="Submit" type="submit" style="font-size: 1em;">Sign Up</button></td>
	</tr>
</table>
</form>

<script type="text/javascript" language="javascript">
<!--
	document.signup.DOBmonth.value="MM";
	document.signup.DOBday.value="DD";
	document.signup.DOByear.value="YYYY";

function clearDOBmonth() { document.signup.DOBmonth.value="";}
function clearDOBday() { document.signup.DOBday.value="";}
function clearDOByear() { document.signup.DOByear.value="";}
function restoreDOBmonth()
	{
		if ('document.signup.DOBmonth.value = ""')
			{
				document.signup.DOBmonth.value = "MM";
				// alert(document.signup.DOBmonth.value);
			}
	}

//-->
</script>

Another side question, if I set a variable equal to the value of a textbox, then change the value of the variable, does that also change the value of the textbox? or is the variable no longer associated with the textbox. Example: Code:

var a = document.form.textbox.value;
a = blue;

does document.form.textbox.value = blue? or is var a now completely independent of the textbox value? Thanks!

Initializing X Amount Of Variables

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This is probably a really simple question. Is it possible to initialize x amount of variables. Like someone enters 10 into an input box and it makes 10 variables called variable1, variable2, variable3, etc.
How would you name them?
variable + num = 0; ?

Thanks!

Find Highest Dollar Amount

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So if I have three dollar amounts like ....

a = 1,222.00;
b = 1,323.00;
c = ;
d = 1,222.00;

How can I alert the highest variable even though there may be 1 or more of them?

Using Javascript To Add Values To Total Amount

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Hi, i followed a tutorial online on how to use Javascript to calculate total price. Everything works fine, when all the dropdown select value has it's own value and does not correspond to each other.

Eg :
Cake Type : Round $4.00
Cake Color : Red $3.00
Cake Filling : Raspberry $4.00
So total is $11.00

The problem comes when you want to add Cake Layers and the price of Cake Color changes based on No of Layers - 1 Layer , 2 Layer and so on.

Eg:
Cake Layer : Layer 1 $5.00 | Layer 2 $2.50 | Layer 3 $2.50 (for color Orange)
Cake Layer : Layer 1 $7.00 | Layer 2 $4.00 | Layer 3 $4.00 (for color Red)

Do i have to use if and else conditional statement for every possibility? I am just a beginner. Attached below is the example code i have so far..

Code:

var filling_prices= new Array();
 filling_prices["None"]=0;
 filling_prices["Lemon"]=5;
 filling_prices["Custard"]=5;
 filling_prices["Fudge"]=7;
 filling_prices["Mocha"]=8;
 filling_prices["Raspberry"]=10;

function getFillingPrice()
{
    var cakeFillingPrice=0;
    //Get a reference to the form id="cakeform"
    var theForm = document.forms["cakeform"];
    //Get a reference to the select id="filling"
     var selectedFilling = theForm.elements["filling"];

    //set cakeFilling Price equal to value user chose
    //For example filling_prices["Lemon".value] would be equal to 5
    cakeFillingPrice = filling_prices[selectedFilling.value];

    //finally we return cakeFillingPrice
    return cakeFillingPrice;
}

This is for the calculation
Code:

function calculateTotal()
{
    //Here we get the total price by calling our function
    //Each function returns a number so by calling them we add the values they return together
    var cakePrice = getCakeSizePrice() + getFillingPrice() + candlesPrice();

    //display the result
    var divobj = document.getElementById('totalPrice');
    divobj.style.display='block';
    divobj.innerHTML = "Total Price For the Cake $"+cakePrice;

}

Some sample of the HTML
Code:

<select id="filling" name='filling' onchange="calculateTotal()">
                <option value="None">Select Filling</option>

                <option value="Lemon">Lemon($5)</option>
                <option value="Custard">Custard($5)</option>
                <option value="Fudge">Fudge($7)</option>
                <option value="Mocha">Mocha($8)</option>
                <option value="Raspberry">Raspberry($10)</option>

Is there a better way of simplifying this calculation method ? How do i change the price of form values based on selected values on previous dropdown.

Thanks in advance.

Display Div For Set Amount Of Time, And Then Fade Out?

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Hey guys.

So I've been learning PHP and MySQLi for the past few weeks and it's going brilliantly!
I intend to start learning JS over the Xmas holidays, but right now I only have a very basic knowledge of it.

I was just wondering if someone could point me in the right direction on how to do this, as I think i should be pretty easy.

After someone changes something in the admin area [e.g. the position of an item] I want to be able to have a small div display at the top of the screen saying something like "Position Updated!" and then have it fade away after 2-3 seconds.

Just wondering if there's a fairly easy way to do this, or would I have to go get something like MooTools, etc.?

Thanks a lot!

Calcultate Amount Total According To Dropdown

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I have a text field.
I want the text field to change / be calculated on the action made on the dropdown menu...

So if I select Debit card.. it should leave the amount as is..
If I selected Credit Card it should add a percentage to the Amount.

Please dont just provide a solutoin.. but please explain as i would love to understand why

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>

<script type="text/javascript">
     
	   function  doMath() { 
	   
	   if (CardType = "cc") { 
       var one = eval(document.myForm.Amount.value)
       var prod = one  *   1.03
       document.myForm.Amount.value=custRound(prod,2);}
      }
	  
	  else
	  document.myForm.Amount.value;
     
     function custRound(x,places) {
      return (Math.round(x*Math.pow(10,places)))/Math.pow(10,places)
     }
    </script>


</head>

<body>
<form id="myForm" name="myForm" method="post" action="">
  <input name="Amount" type="text" id="Amount" v alue="100" />
  <select id="CardType" name="CardType" onchange="doMath();" >
    <option value="" selected="selected">Please Select</option>
    <option value="dc">Debit Card</option>
    <option value="cc">Credit Card</option>

  </select>
</form>
</body>
</html>

Auto-calculate Total Amount

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Hi, I am thinking of how to write the code for this:

There are 4 textboxes, 3 of which allow you to enter any number (e.g. 1000, 2500, 12345, 100.10, etc.). So whenever I entered a number in one of them (or two or all of them), the 4th read-only textbox will automatically shows the total of the values in the 3 textboxes.

So...can anyone give me any references to this? Thanks.

How To Disable Radio Buttons After Certain Amount Of Time

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hi

i have following code
Code:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<!--<meta http-equiv="refresh" content="51;url=quiz2action.php" />-->
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Untitled Document</title>
</head>

<body>
<div id = "time"></div>

<script type = "text/javascript">
}

function display(secs) {
if (secs <= 0) { 
alert("Your time is up!");
return;
}
secs--;
document.getElementById("time").innerHTML = "You have " +
Math.floor(secs/60) + ":" + (secs % 60 < 10 ? "0" : "" ) + (secs % 60) + " left";
setTimeout("display("+secs+")",1000);
}

display(51); // 300 seconds = 5 minutes

</script>
<p>
<form name="form1" method="post" action="quiz2action.php">
  <?php
$db = mysql_connect("localhost");
mysql_select_db("videoshop", $db);

//$queryquestions = "SELECT * FROM quiz ORDER BY RAND()" or die();
$queryquestions = "SELECT * FROM quiz" or die(); 
$resultquestions = mysql_query($queryquestions) or die();

while($rowquestions = mysql_fetch_array($resultquestions))
{
   $questionid = $rowquestions['id'];
   $question = $rowquestions['question'];
   $answerone = $rowquestions['option1'];
   $answertwo = $rowquestions['option2'];
   $answerthree = $rowquestions['option3'];
   $answerfour = $rowquestions['option4'];
   echo "   
    <b>Question $questionid: $question</b><br>
   <input type=\"radio\" name=\"question[$questionid]\" value=\"1\"> $answerone <br>
   <input type=\"radio\" name=\"question[$questionid]\" value=\"2\"> $answertwo <br>
   <input type=\"radio\" name=\"question[$questionid]\" value=\"3\"> $answerthree <br>
   <input type=\"radio\" name=\"question[$questionid]\" value=\"4\"> $answerfour <br>";
   
   echo "<br><br>";
}

?>
</p>
  <label>
  <input type="submit" name="Submit" id="button" value="Submit">
  </label>
</form>
<p>&nbsp;</p>
</body>
</html>

above is the code of quiz which is created in php. that quiz is fine. the problem in in js script above the php script.
what i want is when the time of 5 mins is completed then i want to disable all those radio buttons except submit button.

how can this be done?

Trying To Get Amount In Taxbox Checked To Revert To 0.00 When Unchecked

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Hello,

I am a total newbie, so forgive me in advance as I am just learning javascript. I am putting together a small order form and the javascript code adds the tax (.0825) and shipping (if any - entered by user) to the subtotal. But when I uncheck it, the taxamt amount stays in the box. Any ideas on how to have the taxamt back to 0 when unchecked.

Code:

<form name= "placeOrder">
<table width="70%" border="1" cellpadding="5" cellspacing="5" bordercolor="#e2e2e2">
  <tr>
    <td>fabric number</td>
    <td>yardage</td>
    <td>price</td>
    <td>amount</td>
    <td>sample size</td>
  </tr>
  <tr>
	<td align="center"><input name="fab1" type="text" id="fab1"></td>
    <td align="center">	<input type = "text" name = "qty1" id = "qty1" onchange = "doMath(1)"></td>
    <td align="center">	<input type = "text" name = "cost1" id = "cost1" onChange = "doMath(1)"></td>
    <td align="center"><input type = "text" name = "amount1" id = "amount1" value = "0.00" readonly></td>
    <td align="center"><input name="sample1" type="text" id="sample1"></td>
  </tr>
  <tr>
    <td align="center"><input name="fab2" type="text" id="fab2"></td>
    <td align="center"><input type = "text" name = "qty2" id = "qty2" onChange = "doMath(2)"></td>
    <td align="center"><input type = "text" name = "cost2" id = "cost2" onChange = "doMath(2)" ></td>
    <td align="center"><input type = "text" name = "amount2" id = "amount2" value = "0.00" readonly></td>
    <td align="center"><input name="sample2" type="text" id="sample2"></td>
  </tr>
  <tr>
    <td align="center"><input name="fab3" type="text" id="fab3"></td>
    <td align="center"><input type = "text" name = "qty3" id = "qty3" onChange = "doMath(3)"></td>
    <td align="center"><input type = "text" name = "cost3" id = "cost3" onChange = "doMath(3)"></td>
    <td align="center"><input type = "text" name = "amount3" id = "amount3" value = "0.00" readonly></td>
    <td align="center"><input name="sample3" type="text" id="sample3"></td>
  </tr>
  <tr>
    <td height="31">&nbsp;</td>
    <td>&nbsp;</td>
    <td align="right">Texas sales tax <input type="checkbox" id="taxbox" name="taxbox" onclick="doMath(1)">
    </td>
    <td align="center"><input type="text" name="taxamt" id="taxamt" value="0.00" onChange="doMath()"></td>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td align="right">subtotal:</td>
    <td align="center"><input type="text" name="GdTotal" value="0.00" id="GdTotal" readonly></td>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td align="right">shipping &amp; handling:</td>
    <td align="center"><INPUT type="text" id="shipamt" value="0.00" name="shipamt" onChange="doMath()">
    </td>
	<td>&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>  
	<td>invoice will be emailed when shipping cost is calculated</td>
	<td>&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td align="right">Total:</td>
    <td><input type="text" name="GdTotal" value="0.00" id="GdTotal" readonly></td>
    <td>&nbsp;</td>
  </tr>
</table>
</form>

<script type='text/javascript'>

			function doMath(which){
			var gdtot = 0;
			var tx //" Excluding TX Sales tax";
			var units = document.getElementById("qty"+which).value;
			var shipamt = document.getElementById("shipamt").value;
			shipamt = parseFloat( shipamt );

			if (isNaN(units)) { document.getElementById("qty"+which).value = ""}
			if (isNaN(shipamt)) { 
				document.getElementById("shipamt").value = "";
				shipamt = 0; // so no error when added to gdtot
			}

			var rate = document.getElementById("cost"+which).value;
			var total = units * rate;
			if(!isNaN(total)) {
			var total2dp = total.toFixed(2);
			document.getElementById("amount"+which).value = total2dp;
			for (var i = 1; i <=3; i++) {
			x = document.getElementById("amount" + i).value;
			gdtot = +x +gdtot;  // ensure x is a number
			}
			if (document.getElementById("taxbox").checked) {
				var taxamt = gdtot * 0.0825;
				document.getElementById("taxamt").value = taxamt.toFixed(2);
				gdtot += taxamt;
			}
			gdtot += shipamt;
			document.getElementById("GdTotal").value = gdtot.toFixed(2);
			}
			}



</script>

Display The Amount Of Time I Have Made A Conversion

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I have this code which converts Fahrenheit to Celsius. Now, I have to have a counter that displays the amount of times I have made a conversion. I have no clue how to do this. This is the initial code: Code:

 <html> 
<head> 
<script type="text/javascript">
/* Converts given centigrade in one text box to farenheit in another */
function convert1 () { 
 document.getElementById("output").value = 
            document.getElementById("input").value*1.8+32;
}

</script> 
</head>
<body>
<p>Then enter the input and view the output</p>
<input type="text" size="15" id="input">  
<input type="button" value=" ==> " onclick="convert1()"> 
<input type="text" size="15" id="output"> 
</body> </html>

I don't know how to approach this so I tried different things.... Code:

tml> 
<head> 
<script type="text/javascript">
/* Converts given centigrade in one text box to farenheit in another */
function convert1 () { 
 document.getElementById("output").value = 
            document.getElementById("input").value*1.8+32;
}
function counter()
{
if (function convert1().onclick==true)
{count++;}
}

</script> 
</head>
<body>
<p>Then enter the input and view the output</p>
<input type="text" size="15" id="input">  
<input type="button" value=" ==> " onclick="convert1()"> 
<input type="text" size="15" id="output"> 
</body> </html>

but then I did some research and it said I couldn't do that....
so I tried this: Code:

<html> 
<head> 
<script type="text/javascript">
/* Converts given centigrade in one text box to farenheit in another */
var count=0;
function documentClick()
{
	document.getElementById('clicked').value = ++clickCount
}
document.onclick = documentClick;

function convert1 () { 
 document.getElementById("output").value = 
            document.getElementById("input").value*1.8+32;
}
</script> 
</head>
<body>
<p>Then enter the input and view the output</p>
<input type="text" size="15" id="input">  
<input type="button" value=" ==> " onclick="convert1()"> 
<input type="text" size="15" id="output"> 
</body> </html>

I think this last code is correct, the problem I have now is that I don't know how to call it to just display as text under the buttons and conversions. I'm looking for some way to display it like ("you have made"+ count+ "conversions");. No boxes or buttons, just text and I don't know how to call for this after the </script>, inside the body. I am new at all this and would appreciate any help. Thanks.

It should look like this.

Dynamically Run Code A Specified Amount Of Times Via Loop

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Beginner JavaScripter here. I'm wanting to run a piece of code (add rows) a specified amount of times based upon the number selected. Also, rows can be added after initial number has been specified.

Example:
User1 selects 2 -> 2 rows are added
User1 goes back and selects 3 -> 1 row is added, making 3 rows total

I've tried the following, but it seems to not take into account the number of rows already added. Any help is appreciated.

Code:

 	if (numSelected > 0) {
 		var counter = 0;
		while (rowsAdded < numSelected ) {
			function.addRow();
			counter++;
		}
	}

How To Set Chrome Extension To Expire After X Amount Of Days?

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