JavaScript - Extracting Part Of A String

I am having problem with editing string on mouse click.

I have a string of text like this:
Code:

id1=&id2=&id3=&id4=&amp

And now I need to show/hide part of string by clicking on a links. I would like to hide/show each id's (i.e. id1=&amp


It is simple to hide whole text but how about part of it ?

Hi there... I have a question for the following code (a callback func for ajax)
Code:

function callBackFunctionForAddAdmin(data)
{
	alert(data);
	
}

If we get the following alert message

Quote:
<result><error>the given userid is already admin.please enter another one.. </error></result>
How do i extract the data inside the "error" tag?? (first checking if it exists and then if so extracting it)

Hiya!
Trying to figure out how to use javascript to extract all links on a page that have a certain class:

e.g. - extract only links with a class of 'tools', ignore all other links:
Code:

<a href="http://www.google.com" class="tools">Search</a>
<a href="http://www.tripod.com" class="grapes">Searched</a>
<a href="http://www.dogpile.com">Searches</a>

Any help would be appreciated, I'm guessing I probably have to use something like getelementbyclass("tools")?

Hi,

I'm pretty new to Javascript, by about two weeks, I'm looking for help with a problem I have with the following....

<td title='text1;text2;text3'>text4</td></tr>

I'm trying to display text1-3 in a table cell on a rotation, I have this to count through the cells to get to the relevent one...

[CODE]
function rotateCell() {
var delayed = document.getElementsByTagName('td'); //.title.split(';');
for (var i=24;i<24;i++)
[CODE]

This should allow me to identify the location/cell 24 but can some one tell me how I then extract the tittle data and have them alternate within the cell?

I'm not allowed to edit the HTML.

Very gratefull for any help

PeteW

would it be better to place the javascript into a .js file or just place the js code somewhere else in the html? How should it look?

Code:

 <div style="width: 225px; height: 155px; float: left; height: 16px; background-color: #000000; color: #FFFFFF; margin-left: 0px; margin-bottom: 0px; font-size: small; padding-left: 0px;">
	&nbsp;<img alt="" src="images/news.png" height="16" width="222" /><div style="width: 225px; height: 155px; float: left;"><script type="text/javascript">// <![CDATA[if(document.layers){document.write('<ilayer id="ns4div" width="'+swidth+'" height="'+sheight+'" bgcolor='+sbcolor+'><div id="ns4div1" width="'+swidth+'" height="'+sheight+'" onmouseover="sspeed=0;" onmouseout="sspeed=rspeed"></div></ilayer>')}
if(document.getElementById||document.all){document.write('<div style="position:relative;overflow:hidden;width:'+swidth+'px;height:'+sheight+'px;clip:rect(0 '+swidth+'px '+sheight+'px 0);background-color:'+sbcolor+';" onmouseover="sspeed=0" onmouseout="sspeed=rspeed"><div id="iens6div" style="position:relative;width:'+swidth+'px;"></div></div>');} // ]]></script>
</div></div>

I'm trying to get some average rgb values from an image in one canvas object and apply them via fillstyle to a rectangle in another canvas object.

I have a dropdown that loads an image onChange()="ChangeBaseWood()" into a canvas object. The second canvas object is to be filled with an average color based on the content of the first canvas onClick="GetBaseColor()". For simplicity I've replaced the for loop with just the values of pixel 0,0. Where I think I am assigning the rgb values, the error console keeps reporting that var sample is undefined at the line "var redpart = sample[0].

Code:

function ChangeBaseWood(){
	var dropdown = document.getElementById('woodvalue');
	var woodcanvas = document.getElementById('basewood');
	var woodctx = woodcanvas.getContext('2d');
	var woodimage = new Image();
	woodimage.onload = function(){
		woodctx.drawImage(woodimage, 0, 0,256,256);
	};
	woodimage.src = dropdown.value;
};

function GetBaseColor(){
	var woodcanvas = document.getElementById('basewood');
	var woodctx = woodcanvas.getContext('2d');
	var sample = woodctx.data
	var redpart = sample[0];
	var grnpart = sample[1];
	var blupart = sample[2];
	var staincanvas = document.getElementById('stainbase');
	var stainctx = staincanvas.getContext('2d');
	stainctx.fillStyle = 'rgb('+redpart+','+grnpart+','+blupart+')'; 
	stainctx.fillRect(0,0,256,256); 	
};

I've tried various things to assign the redpart,grnpart and blupart but I'm missing something basic.

Many Thanks

Hi there,

I am trying to extract all of the values from the 5th column (Assignee) in this HTML table http://bugzilla.maptools.org/buglist...icksearch=test and don't know how to proceed.

Is there a clever way of getting the entire col class: <col class="bz_op_sys_column"> before putting into an array.

thanks, kev

I have the following string "d3-23-76-546"

I'm looking for a regular expression that will match everything in this string before 546 so that I can replace it with an empty string and just be left with 546. The string could be of any length and contain any number of hyphens.

Hello all,

this is my first posting and I am happy to have found this forum :-)

I have the following question:

Is it possible to extract information which is located in a predefined area on the screen from a java platform?

For example, there is java based platform which I can see on my screen.
This platform contains numbers/letters.

The location of these numbers/letters does not change, i.e. the script would not need to be adjusted if the field, which contains the info, would move.

Lets assume the screen would look like that:


1234 I 12.20

Love I 1.30

Lake I 32.00


The info between the fields would be clearly separated.
Now I would like to extract the infos from all the fields and paste the info for example in EXCEL so that I can see "Valerie12345" in .xls field A1 / 12.20 in A2 / Love in B1 etc...

Does anybody of you know if that is possible to extract?

Thank you very much in advance,

Valerie

EDIT: Great...I already screwed up the title. It's not a div class but anchor class :s

I've got previous programming experience but unfortunately none with javascript. I was hoping to get Fancybox working on my website. It actually is already but there's a small problem with dynamic varibles I haven't been able to resolve. I've described the problem in the comment line in the code section. Must be a really simple solution, after all I'm a complete js noob. Note that I've simplified the code by removing parts unnecessary in understanding what I'm after.

Code:

<html>
<head>
<script type="text/javascript">
		$(document).ready(function() {
			var title1 = "This is title no 1",
			title2 = "This is title no 2",
			title3 = "This is title no 3";
		$("a#example_video").click(function() {
				$.fancybox({
					'title' : 'title' + this.className.replace("video", "")
					// "title" should equal to "title1", "title2" or "title3" depending on which link a user has clicked. How to accomplish this?
</script>
</head>
<body>
<a class="video1" id="example_video" href= .....>Video1</a>
<a class="video2" id="example_video" href= .....>Video2</a>
<a class="video3" id="example_video" href= .....>Video3</a>
</body>
</html>

Also the only reason for using classnames on anchors is to be able to distinguish between different video clips. Is there a better method I should use?

Hey all, I have a simple example below showing how when I pass in the value of the value attribute of option node, and then use if operator to check whether parameter is a string or not, even though it's a string, it converts it to false boolean and triggers the else statement rather than calling a function:

Code:

	<body>
		<select>
			<option value="createMsg">Add Message</option>
			<option value="removeMsg">Remove Message</option>
		</select>
	</body>

Code:

var menu = {
	handleMenu : function(callback){
 	   	if(callback === "string"){
			menu[callback]();
		}
 		else {
			console.log("Issue occurred")
		}
 		
	},
	createMsg : function(){
		var	content = document.createTextNode("Please give additional information."),
			heading = document.createElement("h1");

		heading.appendChild(content);
		document.body.appendChild(heading);

	},
	removeMsg : function(){
		
	}
}
 
document.getElementsByTagName('select')[0].onchange = function(){ menu.handleMenu(this.value)};

callback should be a string so why is it saying otherwise?

Thanks for response

Hello,

I'm working on a project that involves extracting values from a series of select boxes and then working out the result.

The select boxes contain the following:
Code:

<select name="select_Col1_Row1">
<option value="blue">Blue</option>
<option value="green">Green</option>
<option value="red>Red</option>
</select>
<select name="select_Col1_Row2">
<option value="blue" selected="selected">Blue</option>
<option value="green">Green</option>
<option value="red>Red</option>
</select>
<input type="text" name="RedSum">
<input type="text" name="BlueSum">
<input type="text" name="GreenSum">
</select>

As you can see by my code, I'm early days at this and guessing the steps on the way. I tried using getElementsByTagName on the select and then on the option but had no luck with that. The code below does a wonderful job of returning blue for both select statements...

Code:

<script type="text/javascript">
function getElements()
  {
  var table = document.getElementById("x");   
  var x = table.getElementsByTagName("option");
  for (var i = 0; i < x.length; i++) {   
    var status = x[i].getAttribute("selected");
	alert(status);
    if (status == "selected") {
      var statushcap = x[i].getAttribute("id");
      var statusvalue =x[i].getAttribute("value");
      if (statusvalue == "blue") {
        alert(statusvalue);
      }
    }

  }
  
  alert(x.length);
  }
</script>

If someone could suggest some way to map the select tag and then extract its option value to being the user selected value, I'd most appreciate it. I can probably do the rest of it. Can you extract additional information from the id of the option that is selected as I'd like to sum additional information from the user's choice.

Best,

John

css:


Code:

        #nav{
                width: 960px;
                margin: 0 auto;
            }
            ul li{
                float: left;
                margin-right:50px;
                list-style: none;
            }
      .sub-menu{
          display: none;
    
      }

jquery code:



Code:

              $(function(){
                ("#nav ul li").hover(function() {
                (".sub-menu").css("display","block");
       });

html code:

Code:

 <div id="nav">
      <div class="left"></div>
      <div class="right"></div>
      <ul>
        <li><a href="/" class="current">Home</a></li>
        <li><a href="/cpanel.html" class="">cPanel</a>
          <div class="sub-menu">
              <h2>test</h2>
              <p>
                  <a href="#">test</a> <a href="#">test</a> <a href="#">test<</a>
              </p>
                <p>
                  <a href="#">test</a> <a href="#">test</a> <a href="#">test<</a>
              </p>
          </div>

i am sorry, i am new of jquery.i want to show the sub nav part when the mouse hover on the `li` part. but my code doesn't work.how to correct it. thank you

Hi,
I have youtube link saved as a variable with value:

PHP Code:
http://www.youtube.com/watch?v=oOzuBOefL8I&feature=topvideos 


And I need to get a part of this link which I could use later:

The part would be
PHP Code:
oOzuBOefL8I 


It would be great to do it with javascript... Because I have url generated like this one:

PHP Code:
httpObject.open("GET", "../talpinimas.php?id=reklama&paveikslelis="
                        +document.getElementById('paveikslelis').value+"&pavadinimas="
                        +document.getElementById('pavadinimas').value+"&url1="
                        +document.getElementById('url1').value+"&url1name="
                        +document.getElementById('url1name').value+"&komentaras="
                        +document.getElementById('komentaras').value+"&nick=<?php echo $nick?>"
                        , true);

and I want to send just THE PART (oOzuBOefL8I) to my talpinimas.php page.

If you haven't understood something or need more info ask... Thanks

I'm trying to figure out how to split a url variable... I tried these two ways, with an alert to see my result, but I'm not getting anything. Suggestions?

Code:

        function() {

            myURL = "http://www.test.com/folder1/folder2/someone"

           var partsA = myURL.split("//");
           var parts = partsA[1].split("/");

           alert(parts[2]);

        }

Code:

function() {

       myURL = "http://www.test.com/folder1/folder2/someone"

            var parts = myURL.split('/');
            var result = parts[parts.length-2] + '/' + parts[parts.length-1];

           alert(result);

        }