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JavaScript - Onclick Help With Changing A Variable
I'm doing a school project and I am using JPlayer as a media player. The site is essentially a music jukebox with a search. I have the playlist set up in the jukebox with 5 songs from the start, but I need to make it so that when you do a search and click the plus sign button next to a song, it will change one of the songs in the playlist to that song.
I have the search and everything working but when I click the button it does not actually change the variable in the javascript. Any help or insight to this would be much appreciated. Below is the javascript (with some PHP, but that shouldn't effect what I need). Thanks in advance!! Code: <link rel="stylesheet" href="stylesheets/style.css" type="text/css" />
<!-- CSS files required for JPlayer -->
<link type="text/css" href="skin/jplayer.blue.monday.css" rel="stylesheet" />
<link rel="stylesheet" href="skin/jplayeraudio.css" type="text/css" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script type="text/javascript" src="js/jquery.jplayer.min.js"></script>
<script type="text/javascript">
<!--
var nextSet = 1;
<?php
$songsInDB = 70;
$rand1 = rand(1, $songsInDB);
$rand2 = rand(1, $songsInDB);
while($rand2 == $rand1) {
$rand2 = rand(1, $songsInDB);
}
$rand3 = rand(1, $songsInDB);
while($rand3 == $rand2 || $rand3 == $rand1) {
$rand3 = rand(1, $songsInDB);
}
$rand4 = rand(1, $songsInDB);
while($rand4 == $rand3 || $rand4 == $rand2 || $rand4 == $rand1) {
$rand4 = rand(1, $songsInDB);
}
$rand5 = rand(1, $songsInDB);
while($rand5 == $rand4 || $rand5 == $rand3 || $rand5 == $rand2 || $rand5 == $rand1) {
$rand5 = rand(1, $songsInDB);
}
?>
var var1 = <?php echo $rand1; ?>;
var var1artist = '<?php echo $database->getSongArtist($rand1); ?>';
var var1title = '<?php echo $database->getSongTitle($rand1); ?>';
var var2 = <?php echo $rand2; ?>;
var var2artist = '<?php echo $database->getSongArtist($rand2); ?>';
var var2title = '<?php echo $database->getSongTitle($rand2); ?>';
var var3 = <?php echo $rand3; ?>;
var var3artist = '<?php echo $database->getSongArtist($rand3); ?>';
var var3title = '<?php echo $database->getSongTitle($rand3); ?>';
var var4 = <?php echo $rand4; ?>;
var var4artist = '<?php echo $database->getSongArtist($rand4); ?>';
var var4title = '<?php echo $database->getSongTitle($rand4); ?>';
var var5 = <?php echo $rand5; ?>;
var var5artist = '<?php echo $database->getSongArtist($rand5); ?>';
var var5title = '<?php echo $database->getSongTitle($rand5); ?>';
var playItem = 0;
$(document).ready(function(){
var myPlayList = [
{name:var1artist+" - "+var1title, mp3:"music/"+var1+".mp3"},
{name:var2artist+" - "+var2title, mp3:"music/"+var2+".mp3"},
{name:var3artist+" - "+var3title, mp3:"music/"+var3+".mp3"},
{name:var4artist+" - "+var4title, mp3:"music/"+var4+".mp3"},
{name:var5artist+" - "+var5title, mp3:"music/"+var5+".mp3"},
];
// Local copy of jQuery selectors, for performance.
var jpPlayTime = $("#jplayer_play_time");
var jpTotalTime = $("#jplayer_total_time");
$("#jquery_jplayer").jPlayer({
ready: function() {
displayPlayList();
playListInit(false); // Parameter is a boolean for autoplay.
},
ended: function() {
playListNext();
},
swfPath:"/js",
nativeSupport: true,
supplied: "mp3"
});
$("#jplayer_previous").click( function() {
playListPrev();
$(this).blur();
return false;
});
$("#jplayer_next").click( function() {
playListNext();
$(this).blur();
return false;
});
function displayPlayList() {
$("#jplayer_playlist ul").empty();
for (i=0; i < myPlayList.length; i++) {
var listItem = (i == myPlayList.length-1) ? "<li class='jplayer_playlist_item_last'>" : "<li>";
listItem += "<a href='#' id='jplayer_playlist_item_"+i+"' tabindex='1'>"+ myPlayList[i].name +"</a></li>";
$("#jplayer_playlist ul").append(listItem);
$("#jplayer_playlist_item_"+i).data( "index", i ).click( function() {
var index = $(this).data("index");
if (playItem != index) {
playListChange( index );
} else {
$("#jquery_jplayer").jPlayer("play");
}
$(this).blur();
return false;
});
}
}
function playListInit(autoplay) {
if(autoplay) {
playListChange( playItem );
} else {
playListConfig( playItem );
}
}
function playListConfig( index ) {
$("#jplayer_playlist_item_"+playItem).removeClass("jplayer_playlist_current").parent().removeClass("jplayer_playlist_current");
$("#jplayer_playlist_item_"+index).addClass("jplayer_playlist_current").parent().addClass("jplayer_playlist_current");
playItem = index;
$("#jquery_jplayer").jPlayer("setMedia", myPlayList[playItem]);
}
function playListChange( index ) {
playListConfig( index );
$("#jquery_jplayer").jPlayer("play");
}
function playListNext() {
var index = (playItem+1 < myPlayList.length) ? playItem+1 : 0;
playListChange( index );
}
function playListPrev() {
var index = (playItem-1 >= 0) ? playItem-1 : myPlayList.length-1;
playListChange( index );
}
});
function loadSong(songID, artist, title) {
if(nextSet == 1){
var1 = songID;
var1artist = artist;
var1title = title;
nextSet++;
}
else if(nextSet == 2){
var2 = songID;
var2artist = artist;
var2title = title;
nextSet++;
}
else if(nextSet == 3){
var3 = songID;
var3artist = artist;
var3title = title;
nextSet++;
}
else if(nextSet == 4){
var4 = songID;
var4artist = artist;
var4title = title;
nextSet++;
}
else if(nextSet == 5){
var5 = songID;
var5artist = artist;
var5title = title;
nextSet++;
}
if(nextSet > 5){
nextSet = 1;
}
alert("Song has been queued! "+nextSet)
}
var i = 1;
$(document).ready(function(){
$(".search").click(function(){
$.post("livequery.php", { keywords: $(".keywords").val(), mode: $(".mode").val() }, function(data){
$("table#content").empty()
$.each(data, function(){
var _class = "search_content1";
if(i % 2 == 0) {
_class = "search_content2";
}
$("table#content").append("<tr class='"+_class+"'><td class='trunc_table' width='4%'><input type='button' value='+' onClick=\"loadSong('"+this.id+"', '"+this.artist+"', '"+this.title+"')\" /></td><td class='trunc_table' width='27%'>" + this.title + "</td><td class='trunc_table' width='1%'> </td><td class='trunc_table' width='22%'>" + this.artist + "</td><td class='trunc_table' width='1%'> </td><td class='trunc_table' width='16%'>" + this.album + "</td><td class='trunc_table' width='1%'> </td><td class='trunc_table' width='14%'>" + this.genre + "</td><td class='trunc_table' width='1%'> </td><td class='trunc_table' width='13%'>" + this.mood + "</td></tr>");
i++;
});
}, "json");
});
});
-->
</script>
Also, the code for the playlist is in the myPlayList array, which I'm referencing the title, artist, and filename with the javascript values. I'm trying to change them in the function loadSong(songID, artist, title). I get the alert popup that I have in there, but no values change as far as the songs. Similar TutorialsI've got this script that spins an image for me but it dont stop spinning, in other words when i press startspinning with onclick it dont change it to stopspinning function it just keeps spinning, it works fine with href but not onclick. Code: function StartSpinning() {
int = setInterval( 'SpinChange()', 100 );
$( 'SpinButton' ).innerHTML = "Spinning (Click to Stop)";
$( 'SpinButton' ).onclick = "StopSpinning();";
Effect.Fade( 'turns', {duration: 0.3} );
}
function StopSpinning() {
clearInterval( int );
$( 'SpinButton' ).innerHTML = "Spin it";
$( 'SpinButton' ).onclick = "StartSpinning();";
UpdateFigure();
Effect.Appear( 'turns', {duration: 0.3} );
}
Can anyone help thanks. If you wanted to change an ids onclick would int you just do this document.getElementById("").onclick = ""; Is there a way to do it? Hey everyone - got a Q... I'm having a tabbed panel where the 1st div is originally shown with display: block and the other 3 are display:none to hide, obviously. I want each div to have their own link where if you click the link for div 2 it hides the previous and shows that one etc. Here's what I originally have: Code: <script type="text/javascript">
function tab2() {
document.getElementById('tab-content-2').style.display="block";
document.getElementById('tab-content-1').style.display="none";
}
</script>
<div id="tab-top">
<div class="tab-top-l">
</div>
<div class="tab-top-main">
<ul>
<a href="#" title="Lorem et"><li>Lorem et</li></a>
<a href="#" title="Lorem et" onclick="tab2()"><li class="not-first">Lorem et</li></a>
<a href="#" title="Lorem et"><li class="not-first">Lorem et</li></a>
<a href="#" title="Lorem et"><li class="not-first">Lorem et</li></a>
</ul>
</div>
<div class="tab-top-r">
</div>
</div>
<div id="tab-content-1" style="display: block;">
Content 1
</div>
<div id="tab-content-2" style="display: none;">
Content 2
</div>
<div id="tab-content-3" style="display: none;">
Content 3
</div>
<div id="tab-content-4" style="display: none;">
Content 4
</div>
That successfully hides tab 1 and shows tab 2 but I don't know how to do it properly so it hides the previously shown one. One tab should always be shown. Image attached to show what I mean. Hello, I have a div called pageWrap to wrap my page with the css as Code: margin-top:-46px; I would like to use Javascript onClick on another div. This Div is called loginButton, the onclick should change the the css of pageWrap to 0px and onclick again should change it back. If someone could help me with this code, it would be greatly appreciated Thanks in advance! Hi all, I hope that someone can help me with this strange problem I have here. I have some script which changes a button and changes the onclick event. The strange thing is that although it is changing it. All the events have the same parameter even though my code is giving each button's onclick event it's own unique parameter. Here's my Code. Code: var AllocPeople = window.opener.document.getElementById('AllocPeople');
if(AllocPeople.value.length > 0)
{
var people = AllocPeople.value.split(",");
var Controls = new Array();
for(var P in people)
{
var id = people[P];
Controls[P] = document.getElementById('bt_AP_'+id);
Controls[P].innerHTML = "Deallocate";
Controls[P].onclick = function() {Remove_Player(id)};
}
}
Thanking you all in advance. Hi! I'm no JavaScript expert so wonder if you could help? I have a page with four divs, and would like to change the content in each div by clicking on a link under each div. Can this be done with JavaScript? I've searched everywhere for the last three hours and cannot find any 'readymade' code. Can anyone help me or point me in the right direction? Any help will be really welcome! Thank you! Hi I am trying to stop a preloaded images used in a rollover. The images are linked to a tab navigation system, that open on the same page. if(document.images){ var image_array = new Array(); // path to the directory with images var path = './images/food-drink/food/'; // enumeration of the "active" images image_array[0] = path + "starters_r.png"; image_array[1] = path + "mains_r.png"; image_array[2] = path + "desserts_r.png"; image_array[3] = path + "childrens_r.png"; image_array[4] = path + "sandwiches_r.png"; image_array[5] = path + "meal_r.png"; var preload_image = new Array (); for(var i=0; i<image_array.length; i++){ preload_image[i]= new Image(); preload_image[i].src = image_array[i]; } } function rollover(name, filename){ var fullpath = './images/food-drink/food/' + filename; document.images[name].src = fullpath; } I am trying to change the image with another one, which will change back when a different image is clicked. The problem seems to be that the tab navigation code is disagreeing with other code I have tried. The tab code looks like this and works fine until I add another code with document.getElementById() to the onClick event. function swichtabs(wert) { if (wert=='1'){ /*menu starters tab*/ document.getElementById('tabStarters').className='tab1 tabactive'; document.getElementById('tabMains').className='tab2'; document.getElementById('tabDesserts').className='tab3'; document.getElementById('tabChildrens').className='tab4'; document.getElementById('tabSandwiches').className='tab5'; document.getElementById('tabMeals').className='tab6'; }else if (wert=='2'){ etc... The html code for the image is: <a href="#starters" onmouseout="rollover('btnStarters','starters.png')" onmouseover="rollover('btnStarters','starters_r.png')" onClick="this.onMouseOver=null;this.onMouseOut=null; blendon('starters'); blendoff('mains');etc...; swichtabs('1');" onclick="return false;" title="Starters" id="tabStarters"> <img src="./images/food-drink/food/starters.png" name="btnStarters" width="129" height="30" border="0" /> </a> I would be grateful if you could point me in the right direction. Here is my script -- Applied in <head> Code: <script language="JavaScript">
var bgImage = new Array(); // don't change this
bgImage[0] = "images/aboutus_1.jpg";
bgImage[1] = "images/1.jpg";
bgImage[2] = "images/2.jpg";
bgImage[3] = "";
function changeBG(bgImage)
{
document.body.background = backImage[bgImage];
}
</script>
And here is the code im using that is not working within <body> Code: <body>
<div id="map"></div>
<div id="bf_container" class="bf_container">
<div id="bf_background" class="bf_background">
<img id="bf_background" src="images/background/default.jpg" alt="image1" style=" display:none;"/>
<div class="bf_overlay"></div>
<div id="bf_page_menu" class="bf_menu" >
<h1 class="title">Fujiyama<span>Japanese</span></h1>
<ul>
<li><a href="#" onClick="javascript:changeBG(1)" data-content="home"><span class="bf_background"></span><span>Welcome</span></a></li>
<li><a href="#" onClick="javascript:changeBG(0)" data-content="about"> <span class="bf_hover"></span><span>About us</span></a></li>
this goes on, however, it does not change the background when clicking on "Welcome" or "About us" Links. Where I want "About us" to load image#0 in the index and "Welcome" to load image #1. Any help would be greatly appreciated. Thanks, Cross Ok, 'nother head-banger for the hardcore! I have a "contact us" <a> with the id 'contact' on the main page, which is supposed to change the source file of an iframe to the contact page. Except when I click on "contact us" nothing happens. I've tried to get this to work several different ways, and suspect that the problem is purely syntax, but I just haven't been able to figure it out. Here's the code: The snippet on the main page (index.html): Code:
<div id="linkListContact" class="LinkList">
<img id="linkListContactBg" class="SideBarBgImg" src="Assets/Backgrounds/SideBar/ContactBg.png"></img>
<span>
<ul>
<li>
<div><a id="contact">Contact Us</a>
</div>
</li>
</ul>
</span>
</div>
... and the relevant Javascript: Code:
function setIFrame(frameSource)
{
document.getElementById('mainWindow').src = frameSource;
}
function setContactLink()
{
var contactURL = "http://katabasis.spreadshirt.com/shop/imprint"
document.getElementById('contact').onclick = new Function ( "setIFrame( 'contactURL' )" );
}
The setIFrame function is used to call the content initially when the page loads, and is working beautifully in that context. You can see the problem in action at the actual site: www.katabasis-apparel.com. Thanks. I am trying to use an onclick statement to go to an alternate web page displaying a different version of tha file being displayed in the current page. In the HEAD section of the current page I have a global variable named currentfile that contains a file name. This function is also in the HEAD section immediately below the variable's declaration Code: function altlink()
{
gotolink = "http://www.mydomain.com/testpage.htm?alt=" + currentfile;
return gotolink
}
I have tried every combination I can think of in the onclick code to get it to work but, no joy. here is an example: Code: <a href="#" onClick=altlink(); return false; <img src="change.png" width="47" height="30"></a> If anyone here can sort me out I'd really appreciate it. I just can't get the next page to load. So ill try best to describe what im doing, I grab information from a database and it displays with its model number and a value. I use that value to put into a URL so it will go to the database and delete that values entry. It works excpet it ALWAYS grabs the last value(aka the last entry). So i need it to grab what ive selected rather than the last value. Any help will be great! Code: <form name="addswitchtype" id="addswitchtype" action="<?php echo $this->url('system/switch_management/newtype'); ?>" method="POST">
<h4>Update Switch Model Information</h4>
<table>
<select name"switchtypeid" id="switchtypeid">
<option value="">New</option>
<?php foreach($this->switchtype as $switch_type): ?>
<option value"<?php echo $switch_type->switchtypeid; ?>"><?php echo $switch_type->switchmodel; ?></option>
<?php endforeach; ?>
</select>
</table>
<div id="switchtype-data" style="padding-top: 10px;"></div>
<input type="submit" name="submit" value="Add Switch Type" />
<input type="button" value="Delete Switch"
onclick="javascrip:document.location.href='<?php echo $this->url('system/switch_management/building/switch/' .
$switch_type->switchtypeid . '/deletetype'); ?>'" />
<tr>
</form>
Hello, I am trying to access a dynamic asp variable with onclick either in a javascript function where I can use it globally or set another div id with this dynamic variable. Any help is very much appreciated. Thank you! <script> function doSomething(article_id) } return article_id; } </script> <a href="#test" onClick="doSomething("<%=rsHeadline("article_id")%>")">try here...</a> <div id="test"> <%articleid = request.querystring("article_id") %> <% Response.Write articleid %> The article id is articleid</div> I'm trying to make a basic rss reader with a google reader-esque functionality of clicking on article names and being able to expand/collapse that article. I'm working on the expand part and am going crazy. I am having no trouble getting content and displaying it without the onclick function but when I try to integrate onclick I can just get the titles. here's the snippet. any help? Code: <!-- HTML -->
<body>
<div id="feeddiv"></div>
<script type="text/javascript">
// feed stuff using Google Feed API
function feedLoaded(result)
{
if (!result.error)
{
// Grab the container we will put the results into
var container = document.getElementById('feeddiv');
container.innerHTML = '';
// Loop through the feeds, putting the titles onto the page.
for (var i = 0; i < result.feed.entries.length; i++)
{
var entry = result.feed.entries[i];
var content = entry.content;
var title = entry.title;
var url = entry.link;
var div = document.createElement('div'); //parentDiv for articles
var articleTitle = document.createElement('div');
articleTitle.setAttribute('name', i); //set articleTitle name to article's place in array
articleTitle.setAttribute('style', 'font-weight:bold;font-size:15px;');
articleTitle.innerText = title;
articleTitle.onclick = function() {populate(content, title, url, i);};
div.appendChild(articleTitle); //adds title to div
container.appendChild(div); //adds div to the container
}
}
}
function populate(content,title, url, i)
{
var article = document.getElementByName(i); //gets articleTitle
//clickable title
var a = document.createElement('a'); //creating title link
var href = document.createElement('href');
a.setAttribute('href', url); //putting actual url into html
a.setAttribute('style', 'font-size:25px;');
a.innerText = title;//still puts into html
//Text
var snippet = document.createElement('p'); //creates <p> to throw articles in
snippet.innerHTML = content; //renders the article
article.appendChild(a);
article.appendChild(snippet);
}
</script>
</body>
I have a form, that when the user click Submit, I need a php variable to be echoed to the page. This is for an upload page. So when they are waiting for the file to upload, it will say "Uploading..." until the upload is complete. All I know so far is I need to create a javascript function and include it in the submit button. This is all I have so far in the submit button tag: onClick="Transferring();" Now I need to figure out the code to include in this function. Any ideas? Below is the code that is using the name FFF in various places. The effect of all this is that the onclick function is not executed. I would expect a pop up alert when clicking the submit button. This only happens if I rename either the form id or the js variable. Can anyone explain what is going on here ? Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Title</title>
</head>
<script type="text/javascript">
function newobject(){
this.exec=exec;
function exec(){
alert("exec");
}
}
FFF = new newobject();
</script>
<body>
<form id=" FFF " name="somename" action="" method="GET">
<input type="text" id="someid" name="somename" value="value">
<input onclick=" FFF .exec()" type="submit" id="submitid" name="somesubmit" value="xxx">
</form>
</body>
</html>
Regards Heinz Simply put, I need to take a variable (The number '20' in this case) that is displayed by an input box on my web page and plug it into a function so that whenever I click on a button, the number in the input box will decrease by 1. Seems simple enough, though for hours I've been going at it with no luck. Skipping the rest of my code - I currently have: Code: <head>
<title> Online Slots </title>
<script type="text/javascript"
src="http://dave-reed.com/book/random.js">
</script>
<script type="text/javascript">
function DoSpin()
{
var count;
count = 20
document.getElementById("countBox") = count - 1;
}
</script>
</head>
<body>
<div style="text-align:center">
<input type="button" value="Click to Spin" onclick="DoSpin()" />
<br /><br />
Current Funds:
<input type="text" id="countBox" size="4" value="20" onfocus="blur();" />
</div>
</body>
The entire code is a slot machine project that's supposed to be extremely simple where you hit the button and it spins 3 wheels, 3 of the same image and you win. Every spin takes $1, every win gives $13. The majority of the code is already working, however for some reason I appear to be failing badly at getting the read out to show a decrement of $1 every time you push the button. I know this is a bit newbie of a question to be asking; but I've tried so many different ideas that I've found across w3schools, webdevelopersnotes, dave-reed, ect - and so far I haven't been able to get any of them to work correctly. Any help would be great! Well, I'm a beginner to coding, so I need some help. I'm trying to create a short, html/javascript mario text game. Now, in the beginning, he fights a goomba. He has a health and energy number as variables: Code: <p><img src="http://img253.imageshack.us/img253/9202/mariodisplayidlefront.png" align="middle" hspace=20> <font size=3 color="red"> Health: <script language= "javascript"> var mariohealth = '20'; document.write(mariohealth); </script> </font> <br><font size=3 color="green"> Energy: <script language= "javascript"> var marioenergy = '20'; document.write(marioenergy); </script> </align> </font> And the goomba has health: Code: <p><br><img src="http://img23.imageshack.us/img23/9438/goombafrontdisplay.png" align="middle" hspace=20> <font size=3 color="red"> Health: <script language= "javascript"> var goombahealth = '10'; document.write(goombahealth); </script> </font> And then, there will be different buttons for different attacks. However, the only one created is "Punch", with this code: <FORM> <INPUT type="button" value="Punch" name="Mario Punch" onClick="?"> </FORM> What would I put in the onClick function to make it subtract 4 health from the goomba and 2 health from Mario I have a html page with a lot of thumbnails. The idea is that when the user clicks on an image the onClick event is to display another detailed form and deliver to that form the name of the image in a variable. In the detailed php-form there is a query to MySQL to retrieve a record. The record will be retrieved by a Query based on the name of the picture. Apparently the PHP cannot do the job. I had an idea to make the thumbnail page as a form and to use use a hidden field with the thummnail name which should be carried on with the $_POST array through the submit button but i do not want to have a submit button. The more elegant way is just by clicking the picture the detailed page is opened and the variable is transferred where my php code can make use of the variable for the query. I have never used java before so you have to excuse for the lack of knowledge. Can anyone gie me an idea how i should implemnt this Best regards MSP I have a html page with a lot of thumbnails. The idea is that when the user clicks on an image the onClick event is to display another detailed form and deliver to that form the name of the image in a variable. In the detailed php-form there is a query to MySQL to retrieve a record. The record will be retrieved by a Query based on the name of the picture. Apparently the PHP cannot do the job. I had an idea to make the thumbnail page as a form and to use use a hidden field with the thummnail name which should be carried on with the $_POST array through the submit button but i do not want to have a submit button. The more elegant way is just by clicking the picture the detailed page is opened and the variable is transferred where my php code can make use of the variable for the query. I have never used java before so you have to excuse for the lack of knowledge. Can anyone gie me an idea how i should implemnt this Best regards MSP Hey all, I'm using a fairly simple accordion script. When I went to take a gander at the page in IE I found that the onclick function of the script doesn't respond. It works in FF, Safari, Chrome and Compatibility Mode in IE 8 the error message IE gives me is Quote: Message: 'h' is null or not an object Line: 13 Char: 77 Code: 0 URI: http://proposalfor.us/js/script.js The problem line (as far as I can tell) is: Code: this.a[s]={}; this.a[s].h=h=T$$(e,v)[0]; this.a[s].c=c=T$$('div',v)[0]; h.onclick=new Function(this.n+'.pr(0,'+s+')');
Any help would be greatly appreciated! Thanks friends! |
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