JavaScript - Modulus Function Allowing Multiples Of 7 Between Certain Values

Whenever i try to use this function it gives me either -

NaN, or undefined

what am i doing wrong?

The objective of these functions are to change x and y coordinates into SAN (Simplified Algebraic Notation) for use in the Chess Game's DataFile (PGN file format).



Live Running DHTML App:
http://daomingjin.googlepages.com/ChessManager.html

140kb Zip-Archive:
http://daomingjin.googlepages.com/ScoreMatev1.zip


here are the functions in Question:

Code:

function XCoordToSAN(x)
{
  // Convert the x coordinate of the piece to partial SAN (Simplified Algebraic Notation)
 for(var xCoord = 0; xCoord >  xCoord * 7; xCoord++)
    {
	 if(x == xCoord * BlockSize)
	   {
	    var SANx = xCoord;
	   }
	}
return SANx;
}

function YCoordToSAN(y)
{
var Letters = ["A", "B", "C", "D", "E", "F", "G", "H"];

// Convert the y coordinate of the piece to partial SAN (Simplified Algebraic Notation)
 for(var yCoord = 0; yCoord >  yCoord * 7; yCoord++)
    {
	 if(y == yCoord * BlockSize)
	   {
	    var SANy = Letters[yCoord];
	   }
	}
return SANy;
}

this is how i'm calling the functions:

Code:

var oldPGNx = XCoordToSAN(oldXposition);
  var oldPGNy = YCoordToSAN(oldYposition);
  var newPGNx = XCoordToSAN(newXposition);
  var newPGNy = YCoordToSAN(newYposition);
  
  NewPGNData = oldPGNx + oldPGNy + "-" + newPGNx + newPGNy + " ";
  // Finally update the Data
  document.getElementById("PGNArea").value = OldPGNData + NewPGNData;

I want to pass dynamic array values to java script function.how its possible. explain with some code.........

Hi,

Can anyone tell me How to send values from application resources.properties file to a java script function in a jsp


Thanks in Advance,
John Ven

Please follow these steps in the jsfiddle

1. Click on open grid link and select option "3", buttons A,B and C would appear

2. Enter in number 2 in the number of Answers textbox. Then select buttons A and C

3. Now click on the open grid again and select option 6.

4. Now the number of Answers textbox is empty so type in 2 again in the text-box. So only 2 answers should be selected which is A and C. So if you click on another button the alert message should appear stating you are beyond limit, deselect another button. But this does not happen. Instead the user can select another 2 buttons and then the alert message would appear if another button is selected. This means that 4 buttons are selected which is incorrect, it should still be 2.

So does anyone have an idea why it is doing this?

Thanks

Code is in jsfiddle, click [here][1]


[1]: http://jsfiddle.net/C7vcQ/2/

Hi,

I'm a retired social worker with beginner skills in scripting a web page and need some suggestions.

I create eLearning materials which are given away as a communty service to help people improve their health. A typical eLearning project has a few educational screens (using a Learner Management System-LMS-template) and an interactive exercise (on an external web page-htm or html-usually accessed by button which navigates to the exercise's URL).

The interactive exercise should only be accessed from inside the eLearning lesson using the button, because it requires understanding of the way it works plus important cautions to assure proper use. I need to prevent the use of the URL outside of taking the lesson (for example, someone taking the lesson acquires the exercise's URL from their browser history and then may give this to others who access the exercise directly-without necessary knowledge and cautions).

I tried document.referrer, using JavaScript. Using the referrer URL from inside the lesson and adding the JavaScript to the exercise's htm code worked OK in FF, but not in IE 8. In FF, if the referrer was not the correct single URL from inside the lesson, then it redirected; if the correct URL, the exercise appears.

The JS code follows:

Code:

<script language="JavaScript" type="text/javascript">
<!--
var oksite = "http://www.mysite.com/xyz/courseidxxxxx/yyyy/zzz.html";
var redirect = "http://mysite.com/error.html"; 
if (document.referrer != oksite)
{
location.replace(redirect);
}
//-->
</script>

In IE 8, I was not able to get it to work. Using an alert, I noticed that the referrer in IE 8 was blank.

My web hosting (GoDaddy) is a shared Windows hosting. I would have to upgrade from IIS6 to IIS7 to use PHP. Bigger challenge: I've never used PHP. If possible, I would prefer to use JS. But, I am open to any suggestion that will help.

I am also wondering if part of the IE 8 issue is that I am using IE 8 X 64?

I'm stuck and hope someone can suggest a way to solve this access issue.

Thanks for your help.

Kind Regards,
saratogacoach

Hello All,

How can I prevent a browser from letting an image drag.

I've tried this snippet:
Code:

document.onmousemove = function() {return false};

Thanks in advance!

I have an onfocus event that makes a textarea large and then an onblur event that sets it back to a smaller textarea. If I click the textarea the onfocus event is triggered but if I go straight to submit the form the onblur event is triggered and the form is not submitted unless i hit submit twice. How can i get the form to submit? Can i put an "if" statement in the onblur event to see if the form is being submitted then just submit the form otherwise run the onblur event?



Code:

<style type="text/css"> 
 
 
  .textarea {
          background-color: #ffffff;
          color: black;
          font-family: Arial, sans-serif;
          font-size: 8pt;
          font-weight: normal;
          border-style: solid;
          border-width: 1px;
          border-color: aaaaaa;
          height: 18px;
          width: 50%;
          overflow: hidden;
            
 
          }   
          
  .textarea2 {
          background-color: #ffffff;
          color: black;
          font-family: Arial, sans-serif;
          font-size: 8pt;
          font-weight: normal;
          border-style: solid;
          border-width: 1px;
          border-color: aaaaaa;
          height: 100px;
          width: 50%;
          overflow: auto;
          
          }                
  
  


</style>

</head>

<body>

<script>

function enlargeBox(v,n,c){
 
document.theForm.elements[n].className='textarea2';

 

 
 
}


</script>


<form method="POST" name="theForm" action="newProcess.php">



site<br>
        <textarea 
    class = "textarea" 
    name  = "site" 
    onblur  = "this.className='textarea'" 
 
    onfocus = 'enlargeBox(this.value,this.name,this.className)' rows="1" cols="20"> this is a test for this new texfield to textareathis is a test for this new texfield to textareathis is a test for this new texfield to textareathis is a test for this new texfield to textareathis is a test for this new texfield to textareathis is a test for this new texfield to textareathis is a test for this new texfield to textarea</textarea> 
 <br>
 
 Contact:<br>
 
<input type="text" onclick="this.select();" name="contact" value="" class="textfieldlp" size="50">

<p>&nbsp;</p>
<p><input type="submit" value="submit" name="B1"></p>

</form>

Hi gud mng,

I have one problem...

How to process textbox values/ call textbox values in JS through a Java program.
My text box values are dates. I have to process these dates.

Like in online banking we select day to know our transactions. After submitting we get results. remember my files are in my directory only. No need of database.

My files are look like 20100929, 20100930, 20101001

For epoch_classes.js, epoch_styles.css u can download coding from this link : http://www.javascriptkit.com/script/...ch/index.shtml


Code:


Code:

<html>

<table width="900" border="0" cellpadding="10" cellspacing="10" style="padding:0"> 
<tr><td id="leftcolumn" width="170" align="left" valign="top"> 
<div style="margin-left:0px;margin-top:0px"><h3 class="left"><span class="left_h2">Select Option</span></h3> 
<a rel="nofollow" target="_top" href="day_wise.htm" >Day-wise</a><br />  <br />
<a rel="nofollow" target="_top" href="between.htm" >Between Days</a> 

<link rel="stylesheet" type="text/css" href="epoch_styles.css" />


<script type="text/javascript" src="epoch_classes.js"></script>

<script type="text/javascript">

var cal1, cal2;      
window.onload = function () 
{
cal1= new Epoch('epoch_popup','popup',document.getElementById('popup_container1'));
cal2= new Epoch('epoch_popup','popup',document.getElementById('popup_container2'));
};

/*............*/
function confirmation(f) 
{
	
	var startdate = f.fromdate.value
        var enddate = f.todate.value
        var myday=new Date()

        var yr=myday.getFullYear()
        var mn=myday.getMonth()+1
        var dt=myday.getDate()

        var today=""
        var present, ys, ms, ds, ye,me,de, start, end
           
        if(mn < 10) {  mn = "0" + mn }

        if(dt <10) { dt = "0" + dt } 
 
        today= yr + "/" + mn + "/" + dt
	
        present=yr + "/" + mn + "/" +dt

                     
        if (today < startdate ) 
           {
            alert (" Start date should not be exceed to-day's date " + present )
            startdate.focus()
            return false
           } 
  
        if (today < enddate )
           {
            alert (" End date should not be exceed to-day's date " + present )
            enddate.focus()
            return false
           }

         

         if (today == startdate ) 
           { 
            alert(" You are selected to-days date as Starting day" );
           

            }
   
        var answer = confirm("Do you want to continue ?")        

        if (answer)
           {    if( startdate < enddate)         
		 alert("Dates between " + startdate + " to " + enddate + " are confirmed" )
		else
                  alert("Dates between " + enddate + " to " + startdate + " are confirmed" )     
	   }
	
        else
           {
		alert("Date not confirmed")
                window.location="to_date.htm"; 
           }

        ys= startdate.substring(0,4);
	ms= startdate.substring(5,7);
	ds= startdate.substring(8,10);

        start=ys + "" + ms + "" +ds          
  
        ye= enddate.substring(0,4);
	me= enddate.substring(5,7);
	de= enddate.substring(8,10);
 
        end=ye + "" + me + "" +de

      
}
/*.......................................................*/
</script>

<div style="margin-left:100px;">


<body>
<style type="text/css">
#conf
{
margin-left:115px;
} 
</style>


<td align="left" valign="top"> 
<table width="100" border="0" cellpadding="0" cellspacing="0"> 
<td style="padding-top:0px"> 
</table>

<h4>From Date</h4>

<form name= "formbet" id="placeholder" method="post" action="#" >
<input id="popup_container1" type="text" name= "fromdate" maxlength="10" size="20"/>


<td align="left" valign="top"> 
<table width="300" border="0" cellpadding="0" cellspacing="0"> 
<td style="padding-top:20px"> 


<h4>To Date</h4>
<input id="popup_container2" type="text" name= "todate" maxlength="10" size="20"/> <br /> <br />
<input id="conf" type="button" onclick="confirmation(this.form)" value="Submit">
</form>


</body>
</html>

In my coding, ys, ms, ds represents year starting, month starting, starting day...
ye, me, de represents end...

start,end gives file names in the format of yyyymmdd

now i want to process files from 20100101 to 20100930

means from date is 2010/01/01 and to date is 2010/09/30

if i press submit button the files from 20100101 to 20100930 are processes

here ys=2010 ms=01 ds =01 and ye=2010 me=09 de= 30

For this how do i call these textbox values (from date text box and todate) to another program (java)

Thanks in advance.

Hi guys,

I am trying to re-work some pre-written Javascript code at which I am a novice at (I'm more CSS, HTML, PHP...). I am trying to validate a form field for a Purchaser's last name while accounting for an apostrophe if they have one in their last name.

I bet it's something simple, but I still haven't been able to figure it out, or write it correctly:


Code:

function checkPurchaserName()
{
  var err = false;
  var f = $(getApogeeElement('purchaser_name_first'));
  var l = $(getApogeeElement('purchaser_name_last'));

  if ( f && l &&
       ( f.value.toLowerCase() != first.toLowerCase() ||
         l.value.toLowerCase() != last.toLowerCase() ) )
  {
    error_list[error_list.length] = 'The name of the purchaser must match the applicant.';
    errorHighlight(f);
    err = true;
  }

  return err;
}

As an example. I started the purchasing process with the name "Patrick O'Malley".

At the end page where this validation occurs, they have (2) text boxes, one for "first name" and one for "last name". They must type the same exact name for purchaser that they did for applicant, so "Patrick", then "O'Malley"

Can someone please put me on the right track?

Thanks.

I have a bunch of checkboxes like below that the user can check some or all and click the button and see the values of all the selected checkboxes. How can I do that?

Code:

<script>
function alertValues(){


}
</script>


<input type="checkbox"  class ="normal2" value="131971" name="list[]" >
<input type="checkbox"  class ="normal2" value="131973" name="list[]" >
<input type="checkbox"  class ="normal2" value="131975" name="list[]" >
<input type="checkbox"  class ="normal2" value="131977" name="list[]" >

<input type="button" onClick="alertValues()"

Hi,

I am facing a problem in passing replace() function as an argument in user defined java function, can any one help me how to resolve it?

intention is to pass a file path to my user defined function, but before passing the path i want to replace the character '\' to '\\'

I am posting my javascript function he

<a href="#" onclick="OpenDocPreview('<%# Eval("PATH")%>'.replace(/\\/g,"\\\\"), '<%# Eval("Filename")%>')"><%# Eval("DocTitle") %></a>


function OpenDocPreview(url, docname) {
alert('message from search base : ' + url + ' ' + docname);
}

thank you,

I was working on a tutorial for some ajax uploading stuff and I ran across a new function syntax I don't recognize. I am not a Javascript pro, but I am not a newbie either. here is the code I am working on:

Code:

		function handleFileSelect(e){
			var files = e.target.files;
			var output = [];
			for(var i=0,f;f=files[i];i++){
				if(f.type.match('image.*')){
					var reader = new FileReader();
					
					reader.onload = (function(theFile){
						return function(e){
							var span = document.createElement('span');
							span.innerHTML = ['<img class="thumb" src="',e.target.result,'" title="',theFile.nbame,'" />'].join('');
							document.getElementById('list').insertBefore(span,null);
						};
					})(f);
					
					reader.readAsDataURL(f);
				}
			}
			document.getElementById('list').innerHTML = '<ul>'+output.join('')+'</ul>';
		}
		document.getElementById('files').addEventListener('change',handleFileSelect,false);

To be a little more clear, the code in question is that is the very middle. The syntax I don't understand is:

Code:

class.event = (function(arguments){
     //stuff you put in a function...
})(more Arguments?);

I tried to customize a simple one to learn for myself and I wrote this:

Code:

var a = 'A';
var b = 'B';

test = (function(t){
     alert(t);
     alert(b);
})(b);

test(a);

The browser would alert 'B' and that's it. The console would tell me that 'test is not a function.' OK, so I am confused.

The topmost code works. What I am wondering is what the syntax is called for creating a function (or event listener?) that way, and how it works. Although if I new what it was called I could just google how it works.

<p>
<script type="text/javascript">// <![CDATA[
var metrics = {
"mm" : 1,
"cm" : 10,
"m" : 1000,
"inch" : 25.4,
"foot" : 304.8
};
function convert(num, dec){
var val = document.getElementById("fromVal").value;
if(isNaN(val)){
return
}


function roundNumber(num, dec) {
var result = Math.round( Math.round( num * Math.pow( 10, dec + 1 ) ) / Math.pow( 10, 1 ) ) / Math.pow(10,dec);
return result;
}

document.getElementById("toVal").value = val *
metrics[document.getElementById("fromSystem").value]/
metrics[document.getElementById("toSystem").value];
}
var interval = null;
function watchChanges(){
interval == null ? setInterval("convert()", 500) :
clearInterval(interval);
}
// ]]></script>
</p>
<table>
<tbody>
<tr>
<td><input id="fromVal" style="width: 100px;" onfocus="watchChanges()" onblur="watchChanges()" type="text" /><select id="fromSystem" onchange="convert()"> <option value="mm">millimeters</option> <option selected="selected" value="cm">centimeters</option> <option value="m">meters</option> <option value="foot">feet</option> <option value="inch">inches</option> </select></td>
</tr>
<tr>
<td colspan="1" align="center">=</td>
</tr>
<tr>
<td><input id="toVal" style="width: 100px;" type="text" disabled="disabled" /><select id="toSystem" onchange="convert()"> <option value="mm">millimeters</option> <option value="cm">centimeters</option> <option value="m">meters</option> <option selected="selected" value="foot">feet</option> <option value="inch">inches</option> </select></td>

I found this script, and it works great:
Code:

<script type="text/javascript">
  function disable(element)
  {
    var input = document.getElementById(element).getElementsByTagName("input");
    for(var i = 0; i < input.length; i++)
    {
      input[i].setAttribute("disabled","true");
    }
  }
</script>

I tried to make the inverse by simply reversing the setAttribute() like so:
Code:

<script type="text/javascript">
  function enable(element)
  {
    var input = document.getElementById(element).getElementsByTagName("input");
    for(var i = 0; i < input.length; i++)
    {
      input[i].setAttribute("disabled","false");
    }
  }
</script>

But that didn't do it.
Can someone show me why, and how to fix it?

Here's the sample form which I'm trying to test it on:
Code:

<form>
  <input type="radio" name="test" onclick="disable('D1')" /> disable<br/>
  <input type="radio" name="test" onclick="enable('D1')" /> enable<br/>
  <fieldset id="D1">
    <input class="" type="text" value="test value1" /><input class="" type="text" value="test value2" /><br/>
    <input class="" type="text" value="test value3" /><input class="" type="text" value="test value4" /><br/>
    <input class="" type="text" value="test value5" /><input class="" type="text" value="test value6" /><br/>
  </fieldset>
</form>

Edit:
The ultimate goal which I'm working toward now (step by step =) is to have a form more like:
Code:

<form>
  <input type="radio" name="test" onclick="disable('D1')" />
  <fieldset id="D1">
    <input class="" type="text" value="test value1" /><input class="" type="text" value="test value2" />
  </fieldset>
  <input type="radio" name="test" onclick="disable('D2')" />
  <fieldset id="D2">
    <input class="" type="text" value="test value3" /><input class="" type="text" value="test value4" />
  </fieldset>
  <input type="radio" name="test" onclick="disable('D3')" />
  <fieldset id="D3">
    <input class="" type="text" value="test value5" /><input class="" type="text" value="test value6" />
  </fieldset>
</form>

And have the fieldsets enable and disable according the selection of the radio buttons.

Also, the fieldsets (and their ID's) will be dynamically generated via PHP



Thanks-a-bunch,
~ Mo