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JavaScript - Javascript Graphing Help Please
Hi gurus,
Am trying out some "simple" graphing example Javascript from http://membres-liglab.imag.fr/donsez...eb/js_graphimg or http://www.javascriptkit.com/script/.../graphit.shtml. These are roughly what I wanted but am just wanting to put on some onMouseover or onClick functionality if possible. For example, if I hover the mouse on the legend/label or click on that legend/label, it will highlight the graph'ed data for whichever legend/label the mouse is on and then grey out the rest? Any response or suggestion or a point to the right place to start will be very much appreciated. I've looked at some PHP examples but unfortunately, am not allowed to install GD library for most of the ones that I've found so I believe am stuffed to using Javascript and reading the graphed data from some kind of delimited file. Thanks in advance. Similar Tutorialshey guys i am currently working on a graphing program where it takes information from 1 site and does some calculations and then get graphed, so people can read the information simply and easily. Currently in the project i have the information getting received i am just stuck using jquery and getting it the be graphed... can someone help me I am looking into using this free graphing jquery tool. http://www.jqplot.com/ I made a graphing calculator using canvas in javascript. It's pretty simple as of right now. I was hoping you guys could take a look and tell me what types of things I should add. Some I'm already looking into: customizable x-min, x-max, etc., plotting more than one function on the same graph. It supports sin(), cos(), tan(), pi, e, sqrt(), ln(), abs(), acos(), asin(), atan(). Exponents can be written as b^e. Please give me some suggestions. http://jazzothegreat.com/graph.html Thanks, Julian Hello! I am trying to find a script that allows you to open multiple browser tabs and then close each of those tabs, either one by one or all at once. Does anyone know how to do this please? Thanks so much for your help. I want to have another go at Javascript. I have several books on the subject but I find that my eyesight is a major problem. Therefore I want to try an on-line solution, preferably free. I have Googled, but there are so many that I am almost dizzy with the choices. Perhaps someone could recommend one. Not too fussy visually. My knowledge is VERY basic. Frank Does anyone know how to make URL links that use Javascript still work when users have Javascript disabled on their browser? The only reason I'm using JS on a URL is because my link opens a PDF file, and I'm forcing it not to cache so users have the latest version. I tried the <script><noscript> tags, but I'm not sure if I'm using it correctly, as my URL completely disappears. Below is my HTML/Javascript code: <p class="download"> <script type="text/javascript">document.write("<span style=\"text-decoration: underline;\"><a href=\"javascript:void(0);\" onclick=\"window.open( 'http://www.webchild.com.au/mediakit/Direct_Media_Kit_Web.pdf?nocache='+ Math.floor( Math.random()*11 ) );\" >The Child Magazines Media Kit</a></span> (PDF 1 MB) ");</script> <noscript><span style="text-decoration: underline;"><a href="http://www.webchild.com.au/mediakit/Direct_Media_Kit_Web.pdf" >The Child Magazines Media Kit</a></span> (PDF 1 MB)</noscript> </p> Thanks for any help, Michael Hi Guys, I am new at JavaScript and start to do some tutorials.What I am trying to do here is prompting user to input a name and if the name was valid the page(document) will display with all objects like the button.But if user enter a wrong name then the button will be disabled! I create the following code but it did not work <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>New Web Project</title> <script language="JavaScript" type=""> function changeColor(){ document.bgColor = "Gray"; } </script> </head> <body> <script language="JavaScript" type="text/javascript"> var person = ""; person = prompt('What is Your Name:'); if (person == "Foo") { document.write("<h1 />Welcome " + person); document.bgColor = "Yellow"; } else { document.write("<h1 />Access Denied!!!!"); document.bgColor = "Red"; document.getElementById("gree").disabled = true; } </script> <div> <p/><input id="gree" type="button" value="Gray " onClick="changeColor();"> </div> </body> </html> as you can see I used the: document.getElementById("gree").disabled = true; but it did not work , could you please give an idea how I can solve this problem? Thanks Hi, I have the following code snippet: test.html ====== <script language="javascript" type="text/javascript"> var testVariable = "test"; </script> <script language="javascript" type="text/javascript" src="test.js"> </script> test.js ===== var testVariable = window.top.testVariable; In firefox, I'm able to access testvariable defined within test.html in test.js. But in chrome, test.js couldnot get the window.top.testVariable field defined in test.html. Can any one please let me know how i can make it work in chrome?. Am i missing something here?. I want to insert this js snippet Code: function addText(smiley) {
document.getElementById('message').value += " " + smiley + " ";
document.getElementById('message').focus();
return false;
}
to a loaded iframe with name&id chtifrm. I can access it & change embed something in its html via using something like: Code: $(parent.chtifrm.document.body).append('<div id=\"smly\" style=\"cursor:pointer;float:left;top:200px;display:none;position:absolute;\"><\/div>');
.... Code: parent.chtifrm.document.getElementById('chatbox_option_disco').style.display == 'none'
but how do I insert js in the head of loaded iframe? I got an index.php Code:
<html>
<form action="bacakomik.php" method='post'>
<select name="kodekomik">
<option value='../komik1/|23'>Judul Komik1</option>
<option value="../komik2/|20">Judul Komik2</option>
<option value="../komik3/|10">Juduk Komik3</option>
<option value="../komik4/|20">Judul Komik4</option>
</select>
<input type="submit" />
</form>
<?php
echo ('<select>');
echo ('<option value= "'.$i.'">'.'Page '.$i.'</option>');
echo ('</select>');
?>
</html>
As you can see, each of the option brings specific value "../komik1/|23" komik1 is a directory | is a delimiter 23 is the pages in one chapter and can be considered also as how many images are there on a specific directory This is my bacakomik.php Code: <?php
$dirkomik = $_POST['kodekomik'];
$exploded = explode("|", $dirkomik);
echo ($exploded[0]); //picture directory
echo ("<br>");
echo ($exploded[1]); //total page in the comic
$pagecount = (int)$exploded[1];
//Take last posted value, process it right away
echo ('<FORM name="guideform"> ');
echo ('<select name="guidelinks">');
$i=1;
do {
echo ('<option value= "'.$i.'">'.'Page '.$i.'</option>');
$i= $i+1;
}while($i <= $pagecount); //Printing option and select
echo ("</select>");
?>
<input type="button" name="go" value="Go!" onClick="document.getElementById('im').src=document.guideform.guidelinks.options[document.guideform.guidelinks.selectedIndex].value+'.png';"> </FORM>
<img src="img0.jpg" id="im">
With the current code on bacakomik.php, I only can change the img src of id "im" in the same directory only. What I want is that the Javascript could "add" the "$exploded[0]" variable so that the picture can be loaded from different directory. Anyone can do this? I believe that the fix should be somewhere on input tag inside OnClick, or do you know where? Anyway, I found this on the net http://p2p.wrox.com/php-faqs/11606-q...avascript.html Please help me to those who can... Hey, I've got to make the values of some textboxes change the co-ordinates of my sprite on a canvas and havent a clue on how to do it, Here is my form with the two textboxes and submit button: <form> x: <input type="text" name="x" /><br /> y: <input type="text" name:"y" /><br /> <input type="submit" value="Submit"/><br /> </form> And i need it so that they change the values of these: //this shows where my sprite will start on the canvas var block_x; var block_y; searched the internet for hours and cant really find anything i understand or works. any help is much appreciated Hi Guys I am trying to modify the functionality of my page. I want to be able to activate this piece of code using another javascript function. This is the code I want to activate: Code: <script type="text/javascript"><!--
$('#button-cart').bind('click', function() {
$.ajax({
url: 'index.php?route=checkout/cart/update',
type: 'post',
data: $('.product-info input[type=\'text\'], .product-info input[type=\'hidden\'], .product-info input[type=\'radio\']:checked, .product-info input[type=\'checkbox\']:checked, .product-info select, .product-info textarea, .date_data input[type=\'text\']'),
dataType: 'json',
success: function(json) {
$('.success, .warning, .attention, information, .error').remove();
if (json['error']) {
if (json['error']['warning']) {
$('#notification').html('<div class="warning" style="display: none;">' + json['error']['warning'] + '<img src="catalog/view/theme/default/image/close.png" alt="" class="close" /></div>');
$('.warning').fadeIn('slow');
}
for (i in json['error']) {
$('#option-' + i).after('<span class="error">' + json['error'][i] + '</span>');
}
}
if (json['success']) {
$('#notification').html('<div class="success" style="display: none;">' + json['success'] + '<img src="catalog/view/theme/default/image/close.png" alt="" class="close" /></div>');
$('.success').fadeIn('slow');
$('#cart_total').html(json['total']);
$('html, body').animate({ scrollTop: 0 }, 'slow');
}
}
});
});
//--></script>
And this is how I want the format of the function to be: function testsession() { if there is a session called 'hiredate' { activate the script above } else { var el = document.getElementById("product_data"); } } I just dont know how to write this in javascript Could you help me if possible please All -- I have a JavaScript config file called gameSetting.js which contains a bunch of variables which configures a particular game. I also have a shared JavaScript library which uses the variables in gameSetting.js, which I include like so: <script type="text/javascript" src="gameSetting.js" ></script> <script type="text/javascript" src="gameLibrary.js" ></script> In gameSetting.js I have: $(document).ready(function() { // call some functions / classes in gameLibrary.js } in Firefox, Safari, and Chrome, this works fine. However, in IE, when it's parsing gameSetting.js, it complains that the functions that live in gameLibrary.js aren't defined. When it gets to parsing gameLibrary.js, the variables in gameSetting.js are reported as not being defined. I've tried dynamically bootstrapping the gameLibrary file using this function in document.ready for dynamic load... $.getScript("gameLibrary.js"); However, the same problem still happens in IE, where when it parses the files individually it's not taking into context the file/variables that came before, so it's not an out of load order problem. My options a 1) collapsing all the functions in gameLibrary.js and variables in gameSetting.js into one file. However, this is not practical because this is dealing with literally hundreds of games, and having a gameLibrary.js in ONE location for ONE update is what makes most logical sense. 2) figure out a way to get this to work where variables in file1 are accessible to file2 in IE (as it seems they are in other browsers). jQuery seems to be able to have multiple plugins that all refer to the based jQuery-1.3.2.js, so I know there is a way to get this to work. Help appreciated. Nero I wrote a log function that took note of various function calls. Thinking that functions are first class objects, and objects have properties, I made the name of each logged function a property of that function, e.g., brightenInnerPara.name = "brightenInnerPara"; Every browser I tried (Firefox, MSIE, Opera, Chrome, Safari) accepted the assignment, no problem. In Firefox and MSIE, the result was what I wanted: brightenInnerPara.name == "brightenInnerPara" But in the others, the result was: brightenInnerPara.name == null Question 1. Which Javascript is correct here? I favor Firefox and MSIE, not merely because they were willing to give me what I wanted, but also because it makes no sense to accept an assignment statement without throwing an error and then give it a null semantics, like Chrome, Opera, and Safari did. I found a workaround, using assignments like this: brightenInnerPara.prototype.name = "brightenInnerPara"; To my surprise, that worked in every browser. But I don't know why. It seems that such assignments are enough to cause each function to have its own distinct prototype. Question 2. Just how inefficient is my workaround, and why does it work? I need help i want to make an area where it will show three boxes with news in them but it has arrows either side to slide to older and newer stories. I am very new to JavaScript and just wanted a push in the write direction to is this something that you would do in this lanuage or jQuery or something a like. Thanks Hello friends, I need a help in HTML and java script I want that whenever i scroll the HTML page downwards then when i reaches at the bottom of the page then some event should get fired or some action should get performed like twitter I don't understand, how can i do that ? Hey everyone, could anyone help me with this code please? Code: <script language ="javascript">
function ageCalculator()
{
var day = parseInt(document.forms[0].inputdate.value);
var month = (parseInt(document.forms[0].inputmonth.value)-1);
//this is because javascript thinks of january as month 0, so we need to minus the
input month to work e.g december in javascript is month 11.
var year = parseInt(document.forms[0].inputyear.value);
var year;
var yourage;
var date = new Date();
thisday = now.getDate();
thismonth = (now.getMonth());
thisyear = (now.getFullYear());
{ if ((thismonth > month) || (thismont == month & thisday>=year))
{yourage = year}
else {yourage = year + 1}
alert("As of, "+now+' \n'+", you a " +(thisyear - yourage) + " years
old");
}
}
</script>
<form><center>
Enter your day of birth <input type="text" name="inputdate" size="2"><br/>
Enter your birth Month(1-12)<input type="text" name="inputmonth" size="2"><br/>
Enter your 4 digit birth year<input type="text" name="inputyear" size="4" ><br/>
<input type="submit" value="submit" onClick="ageCalculator()"><input type="reset"
value="reset"></center>
</form>
i'm pretty new to code and this has got me stumped any help would be appreciated, thanks Hi everyone, I'm trying to generate a drop down list using a supplied xml form with an xsl sheet. Because xsl lacks commands that will allow me to create repetitive <options> I am using javascript. A sample xml file that I am using is bellow. Code: <?xml version="1.0" encoding="ISO-8859-1"?> <?xml-stylesheet type="text/xsl" href="a.xsl"?> <Country> <California> <County>San Diego</County> <County>Los Angeles</County> </California> <Nevada> <County>Reno</County> <County>Las Vegas</County> </Nevada> </Country> The xsl file that I'm using is show below. Code: <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<head></head>
<body>
<p>This loaded</p>
<form>
<select name='County'>
<script type="text/javascript">
var i=3;
while(i > 0){
document.write("<option><xsl:value-of select='Country/California/County[");
document.write(2);
document.write("]'/></option>");
i--;
}
</script>
</select>
</form>
<script type="text/javascript">
var i=3;
while(i > 0){
document.write("<xsl:value-of select='Country/California/County[");
document.write(2);
document.write("]' /> <br />");
document.write("<xsl:value-of select='Country/California/County[2]'/><br />");
i--;
}
</script>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
Bassically all I'm trying to do is list the counties under california. My problem is that the javascript will print the list no problem but it only prints san diego even if my xpath index = i, is set to two. When i is set to 2, it should display Los Angeles. The following sample code will display Los Angeles Code: document.write("<xsl:value-of select='Country/California/County[2]' />");
However when the document has i = 1, it should display san diego. Unfortunately when i use i = 2 and write ... Code: document.write("<xsl:value-of select='Country/California/County["
document.write(i);
document.write("]' />");
or even Code: document.write("<xsl:value-of select='Country/California/County[");
document.write(2);
document.write("]' />");
The xsl sheet will display san diego instead. If the code is used without brackets you can see that everything is being displayed correctly ... for instance writting Code: document.write("xsl:value-of select='Country/California/County["
document.write(i);
document.write("]' /");
will result in .. Code: xsl:value-of select='Country/California/County[2]' / Why is xsl doing this to me? I am trying to create a banner where an images changes when a user refresh a page. This is the js I am using: Quote: // JavaScript Document <!-- TWO STEPS TO INSTALL RANDOM IMAGE: /* 1. Copy the coding into the HEAD of your HTML document 2. Add the last code into the BODY of your HTML document --> <!-- STEP ONE: Paste this code into the HEAD of your HTML document --> */ //<SCRIPT LANGUAGE="JavaScript"> <!-- This script and many more are available free online at --> <!-- The JavaScript Source!! http://javascript.internet.com --> <!-- Begin // Set up the image files to be used. var theImages = new Array() // do not change this // To add more image files, continue with the // pattern below, adding to the array. theImages[0] = "C:\Documents and Settings\ahadali\Desktop\website\images\head_1.jpeg" theImages[1] = "C:\Documents and Settings\ahadali\Desktop\website\images\head_2.jpeg" theImages[2] = "C:\Documents and Settings\ahadali\Desktop\website\images\head_3.jpeg" //theImages[3] = '4.gif' // do not edit anything below this line var j = 0 var p = theImages.length; var preBuffer = new Array() for (i = 0; i < p; i++){ preBuffer[i] = new Image() preBuffer[i].src = theImages[i] } var whichImage = Math.round(Math.random()*(p-1)); function showImage(){ document.write('<img src="'+theImages[whichImage]+'">'); } // End --> This is what I have in <head> Quote: <script src="banner.js" type="text/javascript"></script> This is what I have in <body> Quote: <div> <script language="javascript">showImage();</script> </div> The banner is not working. All the help is appreciated. Thanks, Ali. Hi all I am having x.php file in that i have included (y.js file). x.php code <? $username = "Kelvin"; ?> y.js code (external file) var username =<?php echo'$username';?> alert(username) It is not working for me. How can i get the php variable in external js file. Any help! |
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