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JavaScript - How To Script Two Arrays For A Mouseover Event?
I know this maybe sounds "newbie", perhaps I am still one.
I have 3 divs, all of them in a group "name", there are h1 tags inside them with names too. Well actually I have many many divs like this in several pages so I must use a JS sheet (.js). Code: <div name="area"> <h1 name="stringRed"> Mercury </h1> </div> <div name="area"> <h1 name="stringRed"> Venus </h1> </div> <div name="area"> <h1 name="stringRed"> Earth </h1> </div> The idea is to create an event for the divs, a mouseover event to a div in order to change the color of the words inside the h1 tags. When the mouse is over one particular div the word inside it must change to red. I was trying this Java Script script: (a cross-browser event handler present) Code: function initialize ( ) {
aArea=document.getElementsByName("area");
aStringRed=document.getElementsByName("stringRed");
for (var i=0; i < aArea.length; i++) {
addEvent (aArea[i], 'mouseover', changeColor);
addEvent (aArea[i], 'mouseout', changeOutColor);
}
}
function changeColor() {
????
}
function changeOutColor() {
????
}
Thank you in advanced for any help. Similar TutorialsGreetings, Does anyone know the code to create a function and form to make the position of a button change dynamically based on a mouseover event please? Whereby a viewer's cursor will chase the button around an IE page for infinity! I would prefer to do this without the need for any plugins if at all possible, and it does not need to be cross-platform, just IE is fine. Many thanks Hi, I'm having two issues: First, is there an easier way for my showValue function to display the image file name without running a bunch of if statements? I tried doing something like document.getElementById('imgFile').value = imgArray[n]; but that did not seem to work. Second, I'm trying to have the image file name change in my textbox when I click any button. I've accomplished this with onblur, but that only works if I click on the textbox. I'd like it to just change automatically. Thanks for you help! Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
<head>
<title>Asn4CStartup.htm by Heath Parish</title>
<style type="text/css" >
h1, h2, h3 {font-family: 'arial black';}
.controls { font-family: 'arial black'; font-size:10pt;}
</style>
<script type="text/javascript">
/* <![CDATA[ */
// Note: variables declared inside a function
// using the var keyword are all local variables. It means that these
// variables are only known inside the function. Other functions cannot see
// the values.
// On the other hand if a variable is declared outside any function, these are global
// variables. The values of global variables are available in all other functions.
// Other function can change the values of global variables.
// Declare a global var n:
var n=0; // we will use this global variable to keep track of exactly which element of the array
// is being displayed now. When the user clicks Next button, we will add 1 to n and
// then display the image file in the nth element of the array
// Declare a global array that will contain the names of image files.
var imgArray = new Array();
// The following function will be triggered on the onload event of the page.
function fillArray()
{
// alert ("Hello on load");
imgArray[0]="Bus1.jpg";
imgArray[1]="Bus2.jpg";
imgArray[2]="Fam1.jpg";
imgArray[3]="Fam2.jpg";
imgArray[4]="Honey1.jpg";
imgArray[5]="Honey2.jpg";
imgArray[6]="Map1.png";
// for ( i in imgArray)
// alert (imgArray[i]);
}
function showNext()
// This function will be triggered on click of the Next button
{ // alert ("Hello showNext");
// alert(n);
n = n+1;
//alert (n);
if (n > imgArray.length-1)
{ alert ('You are already on the last image');
n = n-1;
}
else
document.getElementById('imgPic').src='images/'+imgArray[n];
} // end showNext()
function showPrevious()
// This function will be triggered on click of the Previous button
{
// alert("Hello Previous");
// alert(n);
n = n-1;
// alert (n);
if (n < 0)
{ alert ('You are already at the first image');
n = n+1;
}
else
document.getElementById('imgPic').src='images/'+imgArray[n];
} // end showPrevious()
function showFirst()
// This function will be triggered on click of the First button
{
// alert("Hello First");
// alert (n);
if (n == 0)
{ alert ('You are already at the first image');
}
else
document.getElementById('imgPic').src='images/'+imgArray[0]; n = 0;
} // end showFirst()
function showLast()
// This function will be triggered on click of the Last button
{
// alert("Hello Last");
// alert(n);
// alert (n);
if (n >= 6)
{ alert ('You are already at the last image');}
else
document.getElementById('imgPic').src='images/'+imgArray[6]; n=6;
} // end showLast()
function showValue()
// This
{
if (n == 0) { document.getElementById('imgFile').value = "Bus1.jpg"}
else if (n == 1) { document.getElementById('imgFile').value = "Bus2.jpg"}
else if (n == 2) { document.getElementById('imgFile').value = "Fam1.jpg"}
else if (n == 3) { document.getElementById('imgFile').value = "Fam2.jpg"}
else if (n == 4) { document.getElementById('imgFile').value = "Honey1.jpg"}
else if (n == 5) { document.getElementById('imgFile').value = "Honey2.jpg"}
else { document.getElementById('imgFile').value = "Map1.png"}
}
/* ]]> */
</script>
</head>
<body onload="fillArray();">
<div>
<h1> Asn4CStartup.htm by Mesbah Ahmed </h1>
<h2>Windsurf Image Navigation </h2>
<h2>Name of the Image file shown below:
<input class = "controls" readonly="readonly" type="text" id="imgFile" size ="25" onblur="showValue();"/> </h2>
<img id="imgPic" src = "images/Bus1.jpg" alt="picture" width="500px" height="350px" /> <br/>
<input type="button" value="Next" class="controls"
onclick="showNext();" />
<input type="button" value="Previous" class="controls"
onclick="showPrevious();" />
<input type="button" value="First" class="controls"
onclick="showFirst();" />
<input type="button" value="Last" class="controls"
onclick="showLast();" />
<p>
<img src="http://www.w3.org/Icons/valid-xhtml11.png"
alt="Valid XHTML 1.1!" height="31px" width="88px" />
<img src="http://jigsaw.w3.org/css-validator/images/vcss-blue.png"
alt="Valid CSS!" height="31px" width="88px" />
</p>
</div>
</body>
</html>
Good morning all, I am trying to write a JavaScript that performs the following action: When I roll my mouse over on a paragraph with a Code: <p class="hover-target"> Paragraph goes here</p> It will do a reverse video of it. Currently the web page is in white background, black text. So when the mouse rolls over that particular paragraph it will be a black background, white text for that paragraph only. The JavaScript I wrote is: Code: {
Core.start
(
( function()
{
function mouseoverListener(evt)
{
evt = evt ? evt : window.event;
core.addClass (this, " over");
}
function mouseoutListener(evt)
{
evt = evt ? evt : window.event;
core.removeClass (this, " over");
}
return {
init: function()
{
var allElements = document.getElementsByTagName('*');
for (var i = 0; i < allElements.length; i++);
{
if (core.hasClass(allElements[i], "hover-target"))
core.addEventListener(allElements[i], 'mouseover', mouseoverListener);
core.addEventListener(allElements[i], 'mouseout', mouseoutListener);
}
}
};
}
)()
);
}
The HTML document has the right path to the scripts (core. js and the rollover.js) as well as the stylesheet (index_style.css). Also, the CSS stylesheet code is: Code: .over{
color:white;
background:black;
}
There is more to this stylesheet but I am only highlighting the rollover style. Am I missing something from my code? Thanks for your time. Hello everyone, 1.) I'm not a programmer beyond HTML, CSS and only a basic knowledge of javascript, it doesn't take much for me to get lost beyond my skills in javascript. 2.) Is someone willing to add and explain the changes to the code below to include a pause on mouseover? Code: var currentSlide = 1;
var maxSlides = 0;
function fadeImage(){
opacity = 100;
if(steps < 4){
steps += 1;
opacity = opacity / steps;
imageObj = document.getElementById("slide-"+currentSlide);
imageObjN = document.getElementById("slide-"+nextSlide);
imageObjN.style.display = "block";
imageObj.style.opacity = "" + opacity / 100;
imageObjN.style.opacity = "" + ((steps * 25) / 100);
//fade
slideTimeout = setTimeout("fadeImage()", 170); /** fade transition speed */
}else{
steps = 1;
document.getElementById("slide-"+currentSlide).style.display = "none";
currentSlide += 1;
if(currentSlide > maxSlides){
currentSlide = 1;
}
showSlide();
}
}
function initSlideshow(){
slidesCollection = document.getElementById("slides").children;
maxSlides = slidesCollection.length;
for (var i=0; i < maxSlides; i++){
slidesCollection[i].id = "slide-"+(i+1);
if (i > 0)
slidesCollection[i].style.display = "none";
}
steps = 1;
nextSlide = 2;
slideTimeout = 0;
showSlide();
}
function showSlide(){
clearTimeout(slideTimeout);
nextSlide = currentSlide + 1;
if (currentSlide >= maxSlides){
nextSlide = 1;
}
slideTimeout = setTimeout("fadeImage()", 8300); /** display time of slide */
}
Since I like to minimize on graphics to keep bandwidth low, I have been using a script to simulate buttons. When you mouseover, you get some color changes which revert back when you move the mouse off. Simple, right? The problem is that firefox totally ignores the script. Even worse, safari changes on mouseover, but doesn't revert on mouseout. I have this in the heading: Code: <script LANGUAGE="JavaScript">
function ColorBlock(oRegion,sLinkID)
{
if (document.readyState != "complete") return;
window.event.cancelBubble = true;
oRegion.className = "MenuSelected";
oRegion.style.cursor="hand";
sLinkID.style.color = "black";
}
function UncolorBlock(oRegion,sLinkID)
{
if (document.readyState != "complete") return;
window.event.cancelBubble = true;
var oToEl = window.event.toElement;
if ((oToEl && !oRegion.contains(oToEl))||!oToEl)
{
sLinkID.style.color = "white";
oRegion.className = "MenuUnSelected";
}
}
</script>
And this is in the body. Code: <table class=MenuTable>
<tr><td OnMouseover="ColorBlock(this, Link4);"
OnMouseout="UncolorBlock(this, Link4);"
CLASS="MenuUnSelected" nowrap>
<a STYLE="color:white" ID="Link4"
OnMouseover="this.style.textDecorationNone=true;" href="javascript:createWindow('edu.htm','edu','toolbar=1,location=1,directories=1,status=1,menubar=1,scrollbars=1,resizable=1,width=825,height=725')">
<div style="width:144; cursor=hand; font-weight:bold;">
Education
</a></div></td>
</tr>
</table>
I have a bunch of these "buttons" ... firefox ignoring the code is annoying but safari only using half the code makes it look really bad. Anyone have any ideas? I've done a lot of work over time on the site, there are just a few bugs that have been avoiding me and I am trying to hunt them all down and kill them. The page is at www.adam-k-watts.com Hello. I have a script that detects the image size of a url and then shows a resized version of the image if it's necessary to resize. (this script was provided to me by the user bullant, thank you.) (Script will be shown later further down) In order to display the resized image, I must specify the id tag of myImg(and a number) in the img tag and must have an equal number of urls in the script as I do img tags. So, if I have three images I need to do the following to get them to appear. Code: <div><img id="myImg0" src='' alt="" /></div>
<div><img id="myImg1" src='' alt="" /></div>
<div><img id="myImg2" src='' alt="" /></div>
And this is the script (it can go right below the above code and all in the body tag): Code: <script type="text/javascript">
var picUrl = [
'http://localhost/test/pic1.jpg',
'http://localhost/test/pic2.jpg',
'http://localhost/test/pic3.jpg',
];
//create image objects
oPic = new Array();
for(i=0; i < picUrl.length; i++){
oPic[i] = new Image();
oPic[i].src = picUrl[i];
}
window.onload=function(){
var maxWidth = 200;
var maxHeight = 200;
for(i=0; i < oPic.length; i++){
var width = oPic[i].width; //original image width
var height = oPic[i].height; //original image height
//set the image size to display on the page
var newDims = calcNewDimensions(width, height, maxWidth, maxHeight);
document.getElementById('myImg'+i).width = newDims['width'];
document.getElementById('myImg'+i).height = newDims['height'];
document.getElementById('myImg'+i).src = oPic[i].src;
}
}
function calcNewDimensions(width, height, maxWidth, maxHeight){
newDims = new Array();
//scaling factors
var xRatio = maxWidth / width;
var yRatio = maxHeight / height;
//calculate the new width and height
if(width <= maxWidth && height <= maxHeight) { //image does not need resizing
newDims["width"] = width;
newDims["height"] = height;
} else if(xRatio * height < maxHeight) {
newDims["height"] = Math.round(xRatio * height);
newDims["width"] = maxWidth;
} else {
newDims["width"] = Math.round(yRatio * width);
newDims["height"] = maxHeight;
}
return newDims;
}
</script>
O.k. Now, I have the following I am working with: Code: <!--Image 5--> <img src="http://blahblah.com/images/red2.jpg" alt="Item photo" onmouseover="document.swap.src='http://blahblah.com/images/red2.jpg';" height="80"> in which you can see that onmouseover, a larger image is shown (it's not rescaled). You can also see that the url of an img is specified there. How can I get the rescaled image to show in that spot or the url from the picUrl Array and the image shown in the correct size, in that spot of Code: onmouseover="document.swap.src= ? This is the entire area in which the onmouseover code will be used in case you need it. Code: <html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="content-type">
<title>MouseOver-Images</title>
<style type="text/css">
td#kdwhdMAINPHOTO { width: 616px; vertical-align: top; }
table#kdwhdTHUMB { margin-top: 12px; }
td#kdwhdTHUMBNAILS { background-image:
url(http://www.sunandfuninoc.com/testingsites/gems4me/images/t_28.jpg);
width: 616px; height: 114px; text-align: center; }
td#kdwhdTHUMBNAILS img { border: 1px solid #696969; }
td#kdwhdTABLE { width: 296px; vertical-align: top; }
-->
</style>
</head>
<body>
<table style="width: 924px;" border="0" cellpadding="0"
cellspacing="0">
<tbody>
<tr>
<td id="kdwhdMAINPHOTO"
style="text-align: center; background-color: white;">
<!--Image 1--> <img
src="http://site.gems4me.com/images/red2.jpg" alt="Item photo"
name="swap" style="border: 0px solid rgb(105, 105, 105);"
height="450" width="450">
<table id="kdwhdTHUMB" border="0" cellpadding="0"
cellspacing="0" width="616">
<tbody>
<tr>
<td><img
src="http://www.sunandfuninoc.com/testingsites/gems4me/images/t_26.jpg"
alt="Click on the picture below to enlarge" height="25"
width="616"></td>
</tr>
<tr>
<td><img
src="http://www.sunandfuninoc.com/testingsites/gems4me/images/t_27.jpg"
alt="" height="10" width="616"></td>
</tr>
<tr>
<td id="kdwhdTHUMBNAILS"><!--Image 1--><img
src="http://site.gems4me.com/images/450by450.jpg"
alt="Item photo"
onmouseover="document.swap.src='http://site.gems4me.com/images/450by450.jpg';"
height="80">
<!--Image 2--> <img
src="http://site.gems4me.com/images/450by450-2.jpg"
alt="Item photo"
onmouseover="document.swap.src='http://site.gems4me.com/images/450by450-2.jpg';"
height="80">
<!--Image 3--> <img
src="http://site.gems4me.com/images/450by450.jpg"
alt="Item photo"
onmouseover="document.swap.src='http://site.gems4me.com/images/450by450.jpg';"
height="80">
<!--Image 4--> <img
src="http://site.gems4me.com/images/450by450-2.jpg"
alt="Item photo"
onmouseover="document.swap.src='http://site.gems4me.com/images/450by450-2.jpg';"
height="80">
<!--Image 5--> <img
src="http://site.gems4me.com/images/red2.jpg" alt="Item photo"
onmouseover="document.swap.src='http://site.gems4me.com/images/red2.jpg';"
height="80"></td>
</tr>
<tr>
<td><img
src="http://www.sunandfuninoc.com/testingsites/gems4me/images/t_29.jpg"
alt="" height="10" width="616"></td>
</tr>
</tbody>
</table>
</td>
<td><img
src="http://www.sunandfuninoc.com/testingsites/gems4me/images/spacer.gif"
alt="" height="1" width="12"></td>
<td id="kdwhdTABLE">
<table border="0" cellpadding="5" cellspacing="0"
width="296">
<tbody>
<tr>
<td colspan="2" id="kdwhdTABLETITLE">Stuff</td>
</tr>
<tr>
<td class="kdwhdSPECR1C1" nowrap="nowrap">Stuff</td>
<td class="kdwhdSPECR1C2">Stuff</td>
</tr>
<tr>
<td class="kdwhdSPECR2C1" nowrap="nowrap">Stuff</td>
<td class="kdwhdSPECR2C2">Stuff
</td>
</tr>
<tr>
<td class="kdwhdSPECR2C1" nowrap="nowrap">Stuff</td>
<td class="kdwhdSPECR2C2">Stuff</td>
</tr>
<tr>
<td class="kdwhdSPECR2C1" nowrap="nowrap">Stuff</td>
<td class="kdwhdSPECR2C2">Stuff</td>
</tr>
<tr>
<td class="kdwhdSPECR2C1" nowrap="nowrap">Stuff</td>
<td class="kdwhdSPECR2C2">Stuff</td>
</tr>
<tr>
<td class="kdwhdSPECR2C1" nowrap="nowrap">Stuff</td>
<td class="kdwhdSPECR2C2">Stuff</td>
</tr>
<tr>
<td class="kdwhdSPECR2C1" nowrap="nowrap">Stuff</td>
<td class="kdwhdSPECR2C2">Stuff</td>
</tr>
<tr>
<td class="kdwhdSPECR2C1" nowrap="nowrap">Stuff</td>
<td class="kdwhdSPECR2C2">Stuff</td>
</tr>
<tr>
<td class="kdwhdSPECR2C1" nowrap="nowrap">Stuff</td>
<td class="kdwhdSPECR2C2">Stuff</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</body>
</html>
Hi there, I have a menu with 4 links and 4 images associated with them. By default, the image from link 1 is displayed on the page. I would like to change the image with its corresponding one, each time i mouseover one of the other three links. I'm trying to make the following code work unsuccesfully, i might be missing something. Any help will be appreciated. In the <head> section i have this: <script type="text/javascript"> img1 = new Image(); img1.src = "images/party/party.jpg"; img2 = new Image(); img2.src = "images/party/icecream.jpg"; img3 = new Image(); img3.src = "images/party/juice.jpg"; img4 = new Image(); img4.src = "images/party/videogames.jpg"; function change(num){ document.images["linkpic"].src = "img" + num } </script> </head> In the <body> i have: That's my default image <table> <tr> <td width="100"> <img src="images/party/balloon1.jpg" name="linkpic"> </td> <td width="260" valign="top" align="left"> <table> <tr><td><a href="Party1.html" onmouseover="change('1')">Party and Fun</a></td></tr> <tr><td><a href="Party2.html" onmouseover="change('2')">Icecream </a></td></tr> <tr><td><a href="Party3.html" onmouseover="change('3')">Juice </a></td></tr> <tr><td><a href="Party4.html" onmouseover="change('4')">Video Games </a></td></tr> </table> </tr> </table> </body> I would like when i point to Icecream, the picture on the left to change to the Icecream picture and so on. Any hints and help are appreciated! Thanks! Hi, I have some steps to transform into JavaScript but no idea what I am doing wrong (novice with JavaScript). I hope you guys could help. 1//Set Unique ID done at other file 2//Pass Unique ID in the URL done at other file 3//Get FeedbyID function var getfeedvalue= GetFeedByID("Address") 4//Access connection object of that unique feed connection.addEventListener("getfeedvalue", FilteredUrlChangedHandler); 5// For the connection, get the value for the filteredUrl propery. (this is the url that is called when the layer is checked.) function FilteredUrlChangedHandler(sender) { var changevalue=sender.toString } 6// Set the value of the UrlFormat property with the value you got from the filteredURL. getfeedvalue=changevalue Please let me know what I am doing wrong at step 5 or 6. Thanks Ram I'm no coder, as you will soon discover. The web work I do is from a purely novice, even hobby standpoint and the sites I create and host are nothing more than favors for friends and acquaintances who have needed but have not had a presence on the web. This being explained, I am asking those with coding skills to please take a look at the site I've just completed for a little diner down the road. (They're just starting out and can't afford to pay a professional web designer and, unfortunately, are stuck with me.) The site is http://d-n-ddiner.com I'm the first to say that the mouseover sound would drive me crazy, but the guys who own the diner are enthusiastic and want it left as is. I have had to combine scripts in order to have the "black-and-white to color" image effect work simultaneously with sound. The sound script depends on uploaded files: soundmanager.js, soundcontroller.swf and sound-config.xml and its tags are found incorporated with each involved image, within the body. The image effects are just the result of playing around with bits and pieces I've seen, mucking about the Internet. Its script is found within the head and also within the body, in each involved image's area, in mouseover, mouseout and, of course when specifying "name=" (such as Img_1). I opted for providing the sound in this manner because I am able to use an .mp3 file, rather than having to weigh through the pros and cons of .au versus .wav, etc., and the fickle nature of different browsers and plug-in crashes. After having many test the site (friends with varying operating systems and browsers) it appears that this mp3 solution makes the mouseover sound available to a broader range of users. Success has been achieved with Firefox, Safari, Netscape, Omniweb and Chrome. However, Internet Explorer and Opera seem to be the holdouts for both Mac and PC users. All this brings me to two requests: Would someone take a look at the site (particularly with Firefox) to determine if something might be done to help the page load more smoothly? Secondly, is there some sleight-of-hand that might be incorporated into the script to help IE and Opera detect the mouseover sound or do you consider these two browsers essentially not worth the bother? I am attaching a zip of the sound files I mentioned. The mp3 is not included but any mp3 snippet would do for testing, provided the sound config file is edited to reflect its file name. My primary concern is smooth page-loading; the IE and Opera issue is of less importance. Thank you for your patience and for any assistance you would offer. Hi all, I am using the following script posted on this site: http://www.javascriptkit.com/script/...oundlink.shtml It works great, but I want to extend this script and mute the sound using a checkbox. This checkbox has the id: sound. If checked, I want to hear the sounds, when unchecked, no sounds should be heard. This is the code I currently have for the checkbox: Code: function playSound() {
if (document.getElementById('sound').checked){
-something needs to be added here to make it work?-
}
}
Anyone have an idea how to make this work? Many thanks I am having an issue with this script I wrote. Actually it works the way it is now, but not the way I want it too. This is a random raffle ticket number generater. The guys at the fire department where talking about selling 300 tickets and discussing how they were going to select and call the numbers. It got me thinking and inspired to start messing around with javascript again. It all starts with index.html and a form w/ a button and textarea. When a user clicks the button it will generate a random number and insert it into the textarea. This is accomplished by the Generate(); function that is in Genny.js an external js file. Code: <h2>Raffle Ticket Number Generator</h2> <form name="theform"> <input type="button" name="pickNumber" value="Pick a Winner" onclick="Generate();" /> <br /><br /> <textarea cols="40" rows="25" name="winnersCircle">Winning Numbers Will Display Here! </textarea> </form> This much works just fine. Now onto Genny.js Code: //initialize counter and array
count = 1;
winners = new Array();
function Generate(){
//generate a random number from 0-300
var random_number = Math.floor(Math.random()*301);
//checks output of Math.random() against winners array to see if number has been used already
for (i = 0; i < winners.length; i++ ) {
if ( winners[i] == random_number )
alert("I am so sorry... we have accidently drawn a duplicate number! Please pick again.");
}
//add the number to the array
winners[count] = random_number;
//increment the counter
count++;
//display the stored random number
document.theform.winnersCircle.value = winners.join("\n");
}
This much works...somewhat! It generates the random number and checks the winners array to see if it is already used. If it wasn't used it adds the number to the array, increments the counter, and then displays the number in the textarea of the form, as it should. If the number was used it alerts the user, once the user clicks the button to accept the alert it carries on with the script and adds it to the array again and also displays it. This is not what I want it to do. If the number was used I do not want it added to the array or displayed. I would also like it to regenerate another number without the alert. The alert was wrote in to assist me in checking to see if it was finding a duplicate number, thats all. As an extra, is there a way to also add a numbered list to the results. To show the sequence of the ticket draw. I have messed with this for days and rewrote it over and over. I have used different loops and conditional operators to try and solve this problem. But to no avail. Here I am, asking not for the answer but a push in the right direction. Any help would be great, this is becoming an obsession trying to make it work. The code above is the last attempt at this point. Everything else has returned no values or just errors. Thanks in advance! Hi, I'm new to JS and I am trying to build my first script. My problem, is I'm trying to build a multi hide/show script, displaying paragraphs of information. If I want multiple variables for the script do I have to use an array? and if so, how can I construct this array? Here is my script as of now, <!-- // this tells jquery to run the function below once the DOM is read $(document).ready(function() { // choose text for the show/hide link var showText="Resume"; var hideText="Hide"; var profile_showText="Profile"; var profile_hideText="Hide"; // append show/hide links to the element directly preceding the element with a class of "toggle" $(".toggle").prev().append(' (<a href="#" class="toggleLink">'+showText+'</a>)'); $(".profile_toggle").prev().append(' (<a href="#" class="profile_toggleLink">'+profile_showText+'</a>)'); // hide all of the elements with a class of 'toggle' $('.toggle').hide(); $('.profile_toggle').hide(); // capture clicks on the toggle links $('a.toggleLink').click(function() { $('a.profile_toggleLink').click(function() { // change the link depending on whether the element is shown or hidden if ($(this).html()==showText) { $(this).html(hideText); } else { $(this).html(showText); } // profile_toggle if ($(this).html()==profile_showText) { $(this).html(profile_hideText); } else { $(this).html(profile_showText); } // toggle the display $(this).parent().next('.toggle').toggle('fast'); // profile_toggle $(this).parent().next('.profile_toggle').profile_toggle('fast'); // return false so any link destination is not followed return false; }); }); }); //--> Right now the script doesn't work with the bottom two variables profile_"ect." Please help, been working on this for sometime and its probably an easy fix for someone experienced. Thanks! Hi forum, I am trying to attach an event to a dynamically produced button, and then use stopPropagation and preventDefault. Code: function chapter12_nodeOne() {
//create an element
var element = document.createElement('input');
//set some attributes
element.setAttribute('type', 'button');
element.setAttribute('value', 'submit');
element.setAttribute('id', 'myBtn');
//appendd the element into a DIV
document.getElementById('myDiv').appendChild(element);
//uses EventUtil to attach an event listener
EventUtil.addHandler(element, 'click', function() {
alert('event attached');
});
var flag = confirm('prevent default behavior of button?');
if (flag) {
var el = document.getElementById('myBtn');/////////////////////////(1)
var ev = el.onclick;
}
}
var EventUtil = {
addHandler: function(element, type, handler) {
//check if the element and the browser support DOM Level 2 event attachment
//if the user is not browsing with IE
if (element.addEventListener) {
element.addEventListener(type, handler, false);
}
//if user is browsing with IE
else if (element.attachEvent) {
element.attachEvent("on" + type, handler);
}
//if user is using a browser that only supports DOM Level 0 event attachment
else {
element["on" + type] = handler;
}
},
removeHandler: function(element, type, handler) {
//check if the element and the browser support DOM Level 2 event attachment
//if the user is not browsing with IE
if (element.removeEventListener) {
element.removeEventListener(type, handler, false);
}
//if user is browsing with IE
else if (element.detachEvent) {
element.detachEvent("on" + type, handler);
}
//if user is using a browser that only supports DOM Level 0 event attachment
else {
element["on" + type] = null;
}
}
};
But when debugging I see under el on the line marked with (1) that the onclick event is null. What am I doing wrong?! PS:the event is attached, when I click on the button I get an alert message I need to loop the alphabet and numbers 0-9 to initialize a few thousand arrays. This is for my site and is truly needed. http://www.thefreemenu.com I currently have every array written out and it takes up to much space in my .js file. The majority of my variables are empty but necessary and need to be there (including empty) for my site to work properly. Question is the last part Here's where I'm at. Code: var NewVarLetterOrNum = "a";
eval("_oneofseveralnames_" + NewVarLetterOrNum + "='this part works';");
alert(_oneofseveralnames_a);
This creates the variable _oneofseveralnames_a='this part works' Code: var newArrayLetterOrNum = "a";
eval("_oneofseveralnames_" + newArrayLetterOrNum + "= new Array();");
alert(_oneofseveralnames_a)
This creates the Array _oneofseveralnames_a=new Array(); and all the values in the array are null, but, now a variable like _nl_a[1]='something' can be used elsewhere because the array exists. This is all that is necessary for now because I can probably set all the variables to be blank with something like Code: i=1
while(i<=20){
_oneofseveralnames_a[i]="1-20";
i++
}
alert(_oneofseveralnames_[20]);
So now you have what I came to understand in the first few hours. Now to the hard part : ( I can't make multiple array's dynamically. I dont' know if its because I don't understand loops or arrays or what and its very fustrating. As for any answer you might be so kind as to provide, if you could dumb it down that would be greatly appreciated. Code: var newArray =new Array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z')
i=1
while(i<=26){
eval("_nl_" + newArray[i] + "= new Array();");
i++
}
alert(newArray[1]) // Is b, but
alert(_nl_b) //I can't get _nl_b to exist, I tried everything including taking away the quotes around the letters in every test
*/
var _nl_a =new Array()
var _img_a =new Array()
var _h_a =new Array()
var _r_a =new Array()
var _m_a =new Array()
var _yt_a =new Array()
var _i_a =new Array()
The above arrays are all the array _name_ parts I need but for example, a has 10 parts, a,p2_a,p3_a,.. p10_a. I need 10 pages for each letter of the alphabet and numbers 0-9 and a special all1, p2_all1 ... p10_all1. Overall 2200 arrays that need to be declared. Currently they are all written out.
/*
is it possible to capture the control.event or element.event that was fired to invoke the onbeforeunload event. for example, if a button is clicked and it causes the onbeforeunload event to fire can i determine which button was clicked. thanks I have a ondrag event handler and in that I am trying to retrieve e.ClientX but it always return 0 in Mozilla. Works fine in IE though. How can retrieve the clientX and clientY in ondrag event? Hi all I'm well aware that I can't post assignments here and expect an answer, however, I have been staring at this code for so long. I feel I am close to the solution (to get the correct output to the browser) but I just cannot get it to count how many moves it takes. I don't want an answer, but a nudge in the right direction would be very grateful. As you can see from the code and the output, it will attempt to write to the browser how many moves, but only '0'. Code: function rollDie()
{
return Math.floor(Math.random() * 6) + 1;
}
/*
*searches for a number in a number array.
*
*function takes two arguments
* the number to search for
* the number array to search
*function returns the array index at which the number was found, or -1 if not found.
*/
function findIndexOf(number, numberArray)
{
var indexWhereFound = -1;
for (var position = 0; position < numberArray.length; position = position + 1)
{
if (numberArray[position] == number)
{
indexWhereFound = position;
}
}
return indexWhereFound;
}
//ARRAYS that represent the board -- you do not need to change these
//array of special squares
var specialSquaresArray = [1,7,25,32,39,46,65,68,71,77];
//array of corresponding squares the player ascends or descends to
var connectedSquaresArray = [20,9,29,13,51,41,79,73,35,58];
//VARIABLES used -- you do not need to change these
//the square the player is currently on
var playersPosition;
//play is initially at START
playersPosition = 0;
//what they score when they roll the die
var playersScore;
//the index of the player's position in the special squares array or -1
var indexOfNumber;
//MAIN PROGRAM
//TODO add code here for parts (iii), (iv)(b), (v), and (vi)
// start of question(iii)
playersScore = rollDie();
document.write(' Sco ' + playersScore);
playersPosition = playersScore + playersPosition;
document.write(', Squa ' + playersPosition);
indexOfNumber = findIndexOf(playersPosition, specialSquaresArray);
if (indexOfNumber != -1)
{
document.write(', Ladder to Squa ' + connectedSquaresArray[indexOfNumber]);
playersPosition = connectedSquaresArray[indexOfNumber];
indexOfNumber = -1;
}
document.write('<BR>')
// end of question(iii)
// start of question(iv)(b)
while(playersPosition<=80)
{
playersScore = rollDie()
document.write(' Sco ' + playersScore)
playersPosition = playersPosition + playersScore
document.write(', Squa ' + playersPosition)
indexOfNumber = findIndexOf(playersPosition, specialSquaresArray)
if(indexOfNumber != -1)
{
document.write(', Ladder to Squa ' + connectedSquaresArray[indexOfNumber]);
playersPosition = connectedSquaresArray[indexOfNumber];
}
document.write('<BR>');
}
var countMoves = 0;
while(countMoves <= 0)
{
document.write('You took ' + countMoves + ' moves to get out');
countMoves = countMoves + 1
}
/*for (var countMoves = 0; countMoves < playersPosition; countMoves = countMoves + 1)
{
countMoves = countMoves + playersPosition;
document.write('You took ' + countMoves + ' moves to get out');
}*/
// end of question(iv)(b)
// start of question (v)
/*if (playersPosition >=80)
{
document.write('The player is out');
}*/
// end of question (v)
</SCRIPT>
</HEAD>
<BODY>
</BODY>
</HTML>
Many thanks. I set up an image mouseover for the next button but its not working. I have two images set up but the second one wont appear when mousing over image. You can see it at www.college-ebook.com I have created a page using the code below and it works fine. Is there any way that I can replicate the gallery further down the page using different images? When I try, the mouseover on the top gallery opens the images in the bottom gallery. Code: <script>
function changeimage(towhat,url){
if (document.images){
document.images.targetimage.src=towhat.src
gotolink=url
}
}
function sshow(){
window.location=gotolink
}
</script>
<script language="JavaScript1.1">
var myimages=new Array()
var gotolink="#"
function preloadimages(){
for (i=0;i<preloadimages.arguments.length;i++){
myimages[i]=new Image()
myimages[i].src=preloadimages.arguments[i]
}
}
preloadimages("i/1-big.jpg","i/2-big.jpg","i/3-big.jpg","i/4-big.jpg")
</script>
<script>
function changeimage(towhat,url){
if (document.images){
document.images.targetimage.src=towhat.src
gotolink=url
}
}
function sshow(){
window.location=gotolink
}
</script>
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