JavaScript - Setting Parent Class Variable From Inside Function

hello im trying to change a variable set outside of a function and calling the function with an onchange... i'm having problems getting the variable to change


Code:

<script type="text/javascript">


var price = '<?php echo $price; ?>';


function addtwo()
{

if(document.add.size.value == "2xl")
{

price = price + 2;
}
}

</script>

Hi,

Is is possible to access a global variable for use inside a function?

Thanks for help in advance

Mike

I have a navigation menu with one level of submenu, and the code that I have allowes me when I click on the parent, the submenu opens (and remains open). When I click on a subitem, the page travels to that url, but the code that I have compares the document.location to the href of the menu items and display the submenu.
Now the active page is hightlighted, but the parent isn't (if the active page is a submenu).
So what I want is that when a subitem is active, also it's parent should be active, for example:

main_item_1
main_item_2
--sub_item_1
--sub_item_2

In this case when sub_item_2 is active, also main_item_2 should be.

I have tried to use parent(), parents(), but none worked the right way, or at least for me the way I want it.

So here is the code I use:
Code:

$('#topnav ul li ul.submenu li a').click(function(e){
     if ($(this).attr('class') != 'active'){
       $('#topnav ul li a').removeClass('active');
       $(this).addClass('active');
     }
   });
	   $('a').filter(function(){
			return this.href === document.location.href;
	   }).addClass('active')
	   $("ul.submenu > li > a").each(function () {
         var currentURL = decodeURIComponent(document.location.href);
         var thisURL = $(this).attr("href");
         if (currentURL.indexOf(thisURL) != -1) {
	         $(this).parents("ul.submenu").css('display', 'block');
         }
       });
       $('#topnav > ul > li > a').each(function(){
      var currURL = decodeURIComponent(document.location.href);
	  var myHref= $(this).attr('href');
      if (currURL.match(myHref)) {
			$(this).addClass('active');
                        //$('a', $('.active').parents("li:last")).addClass('active');		                   
             	        $(this).parent().find("ul.submenu").css('display', 'block');
	  }
	});

The middle group code is for the subitem, so the code to make the parent also active should be there I think.

When I add the following line to the middle group (after the $(this).parents part):
Code:

$(this).parents("#topnav ul li").addClass('parent');

I am able to make the background of the top parent different, because the parent class changes the background color, but should also change the color of the menu text (parent), but .... not only the most top li has the parent class, also the li which is around the active subitem, which should only be the parent.

Please help.

If I manually write out "2/22/2012 4:00 PM" in TargetDate, I get the correct result for what I want to do (a countdown). But I want the countdown to always be the current day at 4pm. So I tried the code below thats commented, but it is not working. New to javascript, still reading the books, just hoping for some guidance on this.


Code:

Next Update: <script language="JavaScript">
var currentTime = new Date()
var month = currentTime.getMonth() + 1
var day = currentTime.getDate()
var year = currentTime.getFullYear()
TargetDate = "2/22/2012 4:00 PM";
//TargetDate = "document.write(month + "/" + day + "/" + year) + 4:00PM";
BackColor = "white";
ForeColor = "red";
CountActive = true;
CountStepper = -1;
LeadingZero = true;
DisplayFormat = "%%H%% H, %%M%% M, %%S%% S";
FinishMessage = "Forecasts posted";
</script>
<script language="JavaScript" src="countdown.js"></script>

Just starting to look at Handlebars.js today and wanted a clear approach. Assume the following: We don't have control over how the JSON was created (So no server side solutions). JSON will have 1 or more records in it. In each record, there will be a Message_Type name/value pair the value of which would be useful in some function which css class(es) are used in the presentation. ex: message_type: basic, ad, notification, warning, critical. Each message_type will have a css class. So critical message type might get classes .msg_box .critical_msg.

How should I do this (remember, we can't change the original source).? Option 1: process json data before handlebars and add name/value pair for each that contains the appropriate classes, or some way in handle bars.

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.

Hey, I'm looking for a way to get a variable from a parent window in a child window. I'm aware that you can write the variable to a hidden field and then get the field's value in the child window, but I'm looking for a cleaner (all JS preferable) way of doing this.

Something like this, but I believe this is an out-dated solution:
Code:

var str = window.opener.str;
alert(str);

Any solutions?

Hi,

I have a variable:

Code:

var step = 5;

that is referenced by this function:


Code:

function animate(d) {
        if (d>eol) {
          return;
        }
        var p = poly.GetPointAtDistance(d);
		if (k++>=180/step) {
          map.panTo(p);
          k=0;
        }
        map.panTo(p);
        marker.setPoint(p);
		if (supportsCanvas) {
          if (poly.GetIndexAtDistance(d)>lastVertex) {
            lastVertex = poly.GetIndexAtDistance(d);
            if (lastVertex == poly.getVertexCount()) {
              lastVertex -= 0;
            }
            while (poly.getVertex(lastVertex-2).equals(poly.getVertex(lastVertex-1))) {
              lastVertex-=1;
            }
            angle = bearing(poly.getVertex(lastVertex-2),poly.getVertex(lastVertex-1) );
            plotcar();

          }
        }
        
	if(!paused){
		setTimeout("animate("+(d+step)+")", tick);
	} else {
		continueStep=d+step;	
	}
}

and I would like for the user to have the option of setting that variable using radio buttons- say to 5, 7 or 10

is it possible?

Whenever I try to compile a script I wrote, I get the error, "class, interface, or enum expected" and it points to a spot in my script that I don't think should create an error... I've tried changing different things in the line it points to, but it doesn't help. Here's are some of the errors:

Code:
Code:

var it = 0;
var udt = new array(10);
	
for(it = 0, it < udt.length, it++){
	switch(it){
		case 0: udt[it] = prompt("Type a name", "");
		case 1: udt[it] = prompt("Type a verb", "");
		case 2: udt[it] = prompt("Type an adverb", "");
		//case 3: udt[it] = prompt("Type a 
		//case 4: udt[it] = prompt("Type a 
		//case 5: udt[it] = prompt("Type a 
		//case 6: udt[it] = prompt("Type a 
		//case 7: udt[it] = prompt("Type a 
		//case 8: udt[it] = prompt("Type a 
		//case 9: udt[it] = prompt("Type a 
		//case 10: udt[it] = prompt("Type a
	}
}
document.write(udt[0] + udt[1] + "away as" + udt[2]);

Errors:
Code:

story.java:1: class, interface, or enum expected
var it = 0;
^
story.java:2: class, interface, or enum expected
var udt = new array(10);
^
story.java:4: class, interface, or enum expected
for(it = 0, it < udt.length, it++){
^
story.java:17: class, interface, or enum expected
        }
        ^

I've looked over the first one and I have no idea why that is an error. If the reason is obvious to you, please be polite. I've only been using javascript for about 2 days.

I really thought this would work, a user goes to a page, selects a value from a select box then clicks a link to run a report using that hidden variable as a parameter. I am attempting to place the value in the URL to pass it. I'm sure the javascript is working, and maybe it's the HTML I've messed up - not sure.
Here is the javascript (the alert does return the correct value):
Code:

function OnChangeDay() {
	//assign the day id to the hidden variable $day
	x=eval(document.getElementById("day_loc_id_select").value)
	
	if(x) {	
        document.getElementById("test_day_id").value=x;
    } else {
        document.getElementById("test_day_id").value=0;
    }
	// test
	alert(document.getElementById("test_day_id").value)  
}

Here is the calling HTML:
Code:

<input type="hidden" name="test_day" id="test_day_id" value="">

 <select name="day_loc_id" id="day_loc_id_select"  
              onchange="OnChangeDay()"> 
 <option></option>
        <?= form_options($day_loc_options) ?>
</select>

And here is the HTML that should send the value, but I get day= (nothing)
Code:

<a href='/depts/edoptions/excel_extract.php?ex=2&day=<? echo $test_day ?>'>SLIP Data to Excel</a>

Can anyone point out where I've messed up?
Thanks

Hello everybody

I have a problem with Java Script damned
I want to add the values of several variables in one variable and then use this variable, which contains the values of variables

You can see the following example

HTML Code
PHP Code:
<input type="text" name="txt1" />
<br/>age 
<input type="text" name="txt2" />
<br/><br/>
<input type="button" name="submits" value="send"/> 


Javascript Code
PHP Code:
field = document.getElementsByName('txt1')[0];
field2 = document.getElementsByName('txt2')[0];
submit = document.getElementsByName('submits')[0];
data = 'data=' + field.value + '&data2=' + field2.value + '&submits=' + submit.value;
            
document.getElementsByName('submits')[0].onclick = function(){
    alert(data);
} 


After executing this code I find that the variables are not displayed values
As in the following picture


I want to know what the cause of this problem ?

Hi!

I'm trying to toggle a class and one works and the other does not and I don't know why. I'm just getting my feet wet with jquery and javascript and I figured this was a pretty easy task to take on! Maybe.

Link to the page:
Franklin Township Soccer Club - Change Field Status

My sad, sorry attempt =|

Code:

	$( "li.open" ).click(function() {
	$( this ).toggleClass( "closed" );
	});
	
	$( "li.closed" ).click(function() {
	$( this ).toggleClass( "open" );
	});

The first function works with open, so I figured I'd just use opposite on closed! Ha! I don't think so!

In the end within those function there is an element in a form on that page it's hidden. I'd like to change the value from a 0 to 1 for vice versa. That' will be my next step. If you could give me a little nudge in the right direction I'd appreciate it! But first understanding why one works and the other does not, that is the primary mission!

I do appreciate any help given!

Dave

Hi all we are in desperate need of a solution, we have tried and search different methods but none of us can figure it out.

Basically we need to find a word which is inside a class and display a link.

So something like this

find a word equal to "1 line custom"

then

display this <a href="/1-line-custom.htm">click here</a>

I'm not sure if this is really simple or not.

Any help would be much appreciated.

Thanks

Will

How can I call a PHP Function inside a Javascript Function? This is what I have so far, but I don't think I'm doing it the right way.
Any suggestions?

PHP Code:
<?php
function phpQuery(){

     $query = mysql_query("INSERT INTO mytable VALUES('','name','email')");

}
?>
<script type="text/javascript">
function delayQueries()
{
  timeoutID = window.setTimeout(doQueries, 2000);
}

function doQueries()
{
  var runQuery = "<?php phpQuery(); ?>";    
}
</script>

Hi,

Any one help me

In one variable i have some data ex: var data = document.getElementById("imageId").value;

I want to pass this data to another function inside another function ex:

var button1 = '<img src="images/Remove-button.gif" width="70" height="15" onclick="removeVerifyImageRow(this),saveLibData('+data+')"/>';

while running the application i am getting an error incase if the data is string ex:if data is 'image1' i am getting an error, but with number there is no problem ex: if data is '1122'.

this is very urgent to solve this problem plz any one help me