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JavaScript - Need Help With Onclick Fading (old Thread Revisited)
ok ive been searching for a way to make it so when i click on a link it brings up an image or text box...and then when you click on another link on the same page that text box fades out and the new one fades in...
i know how to make images fade in and out and i can make them overlap each other and everything...but making it so i can click either as many times as i want and they keep overlapping is a bit outside my scope sorry...but through my scowering of this forum i found an old post on this thread he http://codingforums.com/showthread.php?t=171655 where a user "spudhead" posted what i think im looking for...but it didnt work for me when i tried it... again, sorry if this isnt how you post idk im new here =/ i was going to post on the old thread but i wasnt sure if it would be answered... thanks for the responses... Similar TutorialsI need to make a table fadeout with JavaScript when I click a button. The table is simple. Code: <table id="users_table" style="border:1px solid #000;border-collapse: collapse;" border='1'> <tr class="dataRow"> <td>11</td> <td>12</td> <td>13</td> </tr> <tr class="dataRow"> <td>21</td> <td>22</td> <td>23</td> </tr> <tr id="row3" class="dataRow"> <td>31</td> <td>32</td> <td>33</td> </tr> <tr class="dataRow"> <td>41</td> <td>42</td> <td>43</td> </tr> </table> There is a button that calls a function called fadeout(). I cannot find a way to make the table fade out with just that one function. Is that even possible? If not, what other functions are necessary to make this happen? Hey guys, I have read the past posts and I see that there have been some other people who have had issues with resetting a form. Right now - on this mess in progress - I have a function that runs on body load: Code: function load ()
{
document.forms[0].reset();
}
I know it is running because originally it was an alert, but this is not clearing the form. I need to get all checkboxes and fields to clear. I have also tried: Code: function load ()
{
document.getElementById("regForm").reset();
}
No dice. Any idea what I am missing? The temp page is he http://www.temp1.hangnailproductions...ISTRATION2.php My script is he http://www.temp1.hangnailproductions...egistration.js Thanks guys, sorry if things are clunky and sloppy, I'm doing my best but still pretty bad. -AJ Is their anyway to have a tight loop of code long for a long period of time without freezing the page? I want to be able to do: Code: for (i=0;i<9999999999;i++){
//some code
if (i%100==0){
yield();
}
}
Delete this post. Thank you
I made a new thread for a problem that I solved a little after posting so I have removed the question in order to not waste anyone's time
hi, deleted old thread, since that didn't answer problem. posting code because of all the dynamic variables would be confusing. so, if anyone can help, here's some link instructions: 1) go to http://www.vehicle411.com 2) in the "vehicle classifieds" panel just click "search" which will bring up 68 vehicles. 3) click on link for any vehicle, which will display vehicle information in a popup window. up to this point everything is fine. BUT when you click the popup's "connect" button to link to a dealership the new window is undersized (actually, if it replaced the original vehicle411 window that would be fine). have tried a lot of different combinations, including the <a href="javascript:photowindow('dealerurl')"> suggested in the other post gives weird result showing javascript:photowindow('dealerurl') in the address window instead of the actual url--meaning it doesn't call the photowindow function. P.S. if you look at the source--all the server values are passed correctly and don't interfere with the code. right now, I've got a simple <a href="dealerurl"> instead of the JS method. Also, have hard coded values to make sure dynamic stuff was working-- and they work. what's really annoying is that I've used just about the same JS code to create that vehicle popups. P.P.S. went back and changed code to using <a href="#" etc. which doesn't work either. but have a direct url for anyone reading this (when clicking on "connect" button it's just creating a copy of itself!!! http://www.vehicle411.com/_system/di...9765108&cid=1# Not done any coding for a LONG time. I want to get the value of the opacity for a element. I'm using Nightly 9.0a1. Also, from what I have read Firefox should us this to SET the opacity style: Code: obj.style.opacity = opacity/100; But this does not see to work in the CSS. In the CSS the value ranges from 0 to 1. So 50% would be 0.5 My current function stops working before executing the alert command. I'm guessing i'm trying to get the style value wrong? Code: function fadeByid(objId) {
if (document.getElementById) {
obj = document.getElementById(objId);
opacity = obj.style.opacity;
alert(opacity);
if (opacity >= 100) {
setOpacity(obj, opacity);
opacity -= 10;
window.setTimeout("fadeByid('"+objID+"','"+opacity+")", 100);
}
}
}
Hey everyone, What I need to do is have my website so when it loads on the homepage for the first time its starts of with a blank (specified color) background, then the logo fades in the middle, then a few seconds later that all fades away to reveal the website. Is this possible without forwarding to separate pages and without flash? Thanks all. Hi guys! I'm trying to make a div layer (id "tehz") fade in using Java. Problem is, it doesn't go through the animation, it just skips to the last stage. If I put an alert to show me the value of "cat" at every step it works just fine. Can anyone please tell me what's the matter? Code: function vis(cat) {
if(cat<=90) {
// alert(cat)
document.getElementById("tehz").style.opacity=cat/100;
document.getElementById("tehz").style.filter="alpha(opacity="+cat+")"
cat=cat*1+1
setTimeout(vis(cat),1000);
}
}
Hey Guys, I'm pretty new to Javascript, maybe you can help me with a small piece. I have 4 images, they are displayed 2x2. Initially they rest at 0.3 opacity.When you hover over one, it goes to 1 opacity. When you click an image, it becomes the selected image and stays at 1 opacity. I have this all working fine. My problem is, when you click another image, the "selected" image stays at 1 opacity until you roll over it again. I want it to automatically fade back to 0.3 opacity when another image is selected. I will attach my code: Code: <style type="text/css">
.MouseOver
{
opacity:0.3;
filter:alpha(opacity=30);
}
</style>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js">
</script>
<script type="text/javascript">
currentImage=null;
$(function() {
$('.MouseOver').each(function() {
$(this).hover(
function() {
$(this).stop().animate({ opacity: 1.0 }, 300);
},
function() {
if(currentImage != this) {
$(this).stop().animate({ opacity: 0.3 }, 300);
}
})
});
});
function doSomething(pic) {
currentImage=pic;
}
</script>
The images then have .MouseOver class and the onClick calls the doSomething function. I'd appreciate any help you can give me. Thanks so much. Hey everyone, For a site I'm currently working on I needed the index page to start out blacked out, have an animated logo fade in, then fade out again before the main page contents fading up all without redirecting etc. I used the following to do this and it works except for one thing. Once the overlay div has faded, it seems to take around 20-30 seconds before the main contents becomes usable. Any ideas for a fix? Code: <body style="overflow:hidden;" onload="MM_preloadImages('images/enter_o.png')">
<div id="overlay" ><img border="0" src="images/animatelogo.gif" alt="img" /></div>
<script type="text/javascript">
/*<![CDATA[*/
function fade(o){
var oop=this,obj=document.getElementById(o.ID),img=obj.getElementsByTagName('IMG')[0];
this.obj=obj;
var img=document.getElementById(o.ID).getElementsByTagName('IMG')[0];
img.style.top=this.wwhs()[1]/2-img.height/2+'px';
this.mS=o.Duration||1000;
this.animate(img,new Date(),0,100,true);
img.style.visibility='visible';
}
fade.prototype={
animate:function(obj,srt,f,t,sc){
var oop=this,ms=new Date().getTime()-srt,now=Math.floor(sc=='s'?(t-f)*Math.sin(this.inc*ms)+f:sc=='c'?t-(t-f)*Math.cos(this.inc*ms):(t-f)/this.mS*ms+f);
this.now=Math.max(now,f<0||t<0?now:0);
obj.style.filter='alpha(opacity='+now+')';
obj.style.opacity=obj.style.MozOpacity=obj.style.WebkitOpacity=obj.style.KhtmlOpacity=now/100-.001;
if (ms<this.mS){
this.dly=setTimeout(function(){ oop.animate(obj,srt,f,t,sc); },10);
}
else if (sc){
this.animate(this.obj,new Date(),100,0,false);
}
else {
document.body.removeChild(obj);
}
},
wwhs:function(){
if (window.innerHeight) return [window.innerWidth-10,window.innerHeight-10,window.pageXOffset,window.pageYOffset];
else if (document.documentElement.clientHeight) return [document.documentElement.clientWidth-10,document.documentElement.clientHeight-10,document.documentElement.scrollLeft,document.documentElement.scrollTop];
return [document.body.clientWidth,document.body.clientHeight,document.body.scrollLeft,document.body.scrollTop];
}
}
setTimeout(function(){
new fade({
ID:'overlay',
Duration:11500
});
},10);
/*]]>*/
</script>
<table class="mainbody" width="900" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td align="center">
<div style="position:absolute; left: 50%; top: 50%; margin: -197px 0 0 -300px; height: 394px; width: 600px; text-align:center;" />
<iframe src="http://player.vimeo.com/video/******44?title=0&byline=0&portrait=0&color=000000" width="600" height="328" frameborder="0"></iframe>
<br /><br /><a href="films.php" class="entrytext"><img src="images/enter.png" id="Image1" onmouseover="MM_swapImage('Image1','','images/enter_o.png',1)" onmouseout="MM_swapImgRestore()"></a></div>
</td>
</tr>
</table>
</body>
So as a breakdown, the page should load black, remain black as a logo fades into it, plays through and fades out, followed by the main content fading up and becoming usable. All this happens as desired except after the main content is visible it takes ages to become active as if the overlay is still there :-\ Thanks Hi all, working on building a website at the moment. and i need to create a script that will increment a number by 0.01, then stop and decrease by 0.03, then increase again by one. I wrote code to increment by 0.01 continuouly but now i can't stop it. and change to decreasing <script type = "text/javascript"> num = 0.87; var tim = 0; function makeNum() { num = ((num*1) + .01).toFixed(2); document.getElementById('count').innerHTML = num-.01; tim = window.setTimeout("makeNum()", 2000); } makeNum(); </script> And now I'm Completly stuck. Help would be grately appreciated Thanks So far I have this written up which does work well. However, the problem is if one toggles the fadeOut function while the fadeIn function is still in action. That causes the functions to collide and have to element being faded start flashing or freezing. Is there a simple way to prevent this? Thank you. Code: function fadeIn(elementId) {
var element = document.getElementById(elementId);
if(element.style.display === 'none') {
element.style.display = 'block';
element.style.opacity = '0';
}
if(element.style.opacity < 1) {
var opacityFloat = parseFloat(element.style.opacity);
element.style.opacity = opacityFloat + 0.1;
setTimeout("fadeIn('" + elementId + "')", 50);
}
}
function fadeOut(elementId) {
var element = document.getElementById(elementId);
if(element.style.opacity > 0) {
var opacityFloat = parseFloat(element.style.opacity);
element.style.opacity = opacityFloat - 0.1;
setTimeout("fadeOut('" + elementId + "')", 50);
}
if(element.style.opacity == 0) {
element.style.display = 'none';
}
}
I've prepared the following page: http://www.ko-go.gr/restaurant/index1a.html but I would prefer the background images to fade in and out rather than change abruptly. I've spent hours searching for appropriate code, but have met a dead end so far. Incidentally, I presume that the delay before the first background image appears is because of all the images pre-loading. Can anyone suggest a way to immediately display the first image? Thanks for taking the time to read this... Hi, I am having difficulty (tearing my hair out) with this problem. I have written a page as a learning experince for JavaScript. The page is here. The fade in works perfectly for ONLOAD and for ONMOUSEOVER but not for ONMOUSEOUT. The JavaScript code is as follows: Code: var d_opacity ;
var e_element ;
var t_timeout ;
function fadeInElement(s_element_to_fade_in)
{
d_opacity = 0.25 ;
e_element = document.getElementById(s_element_to_fade_in) ;
(e_element.style).display = "" ;
(e_element.style).opacity = d_opacity ;
t_timeout = setTimeout("fadeIn()", 125) ;
}
function fadeIn()
{
if (d_opacity == 1.0)
{
clearTimeout(t_timeout) ;
}
else
{
d_opacity += 0.075 ;
(e_element.style).opacity = d_opacity ;
t_timeout = setTimeout("fadeIn()", 125) ;
}
}
function fadeOutElement(s_element_to_fade_out)
{
e_element = document.getElementById(s_element_to_fade_out) ;
d_opacity = (e_element.style).opacity ;
t_timeout = setTimeout("fadeOut()", 125) ;
// (e_element.style).display = "none" ;
}
function fadeOut()
{
if (d_opacity == 0.25)
{
clearTimeout(t_timeout) ;
(e_element.style).display = "none" ;
}
else
{
d_opacity -= 0.075 ;
(e_element.style).opacity = d_opacity ;
t_timeout = setTimeout("fadeOutn()", 125) ;
}
}
When I use the commented out line in fadeOutElement(), the menu disappears which says to me ONMOUSEOUT is being triggered correctly, but if I do the fading out code, it does nothing. Any help greatly appreciated. How am I able to have a gallery of images fading in and out as the background of a DIV? It's currently just a static background using CSS. You can view the HTML page in question he http://aksdesigns.co.uk/temp/template.html The DIV container is the one with the ID of #MainContent Code: #MainContent {
width: 980px;
height: 550px;
margin: 0 auto;
padding: 0px;
background-image: url(images/Content-bg-1.jpg);
background-repeat: no-repeat;
background-position: top center;
border-left: 2px solid #153365;
border-right: 1px solid #FFF;
}
It probably couldn't be done using CSS be how could I achieve this with Javascript? Hi guys, I'm looking for a way i can set some of the mailto form data - mainly the full name and holiday start date into the subject line of the email. this is the code for my form: Code: <html> <head> <body bgcolor="#DCDCDC"> <font size="3" face="tahoma" color="#000000"> <form action="MAILTO:email@email.co.uk?subject=Holiday Request" method="post" enctype="text/plain" font-weight: bold; size="10" maxlength="30"> <u><b>Holiday Request Form</b></u> <br /><br /> First Name: <input type="text" name="first-name" /> <br /><br /> Last Name: <input type="text" name="last-name" /> <br /><br /> Holiday Type: <select name = "Holiday Type"> <option value="new holiday">New Holiday</option> <option value="amend holiday">Amend Holiday</option> <option value="delete holiday">Delete Holiday</option> </select> <br /><br /> Start Holiday: <select name = "Start Day"> <option value="01">01</option> <option value="02">02</option> <option value="03">03</option> <option value="04">04</option> <option value="05">05</option> <option value="06">06</option> <option value="07">07</option> <option value="08">08</option> <option value="09">09</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> <option value="22">22</option> <option value="23">23</option> <option value="24">24</option> <option value="25">25</option> <option value="26">26</option> <option value="27">27</option> <option value="28">28</option> <option value="29">29</option> <option value="30">30</option> <option value="31">31</option> </select> / <select name = "Start Month"> <option value="january">Jan</option> <option value="febuary">Feb</option> <option value="march">Mar</option> <option value="april">Apr</option> <option value="may">May</option> <option value="june">Jun</option> <option value="july">Jul</option> <option value="august">Aug</option> <option value="september">Sep</option> <option value="october">Oct</option> <option value="november">Nov</option> <option value="december">Dec</option> </select> / <select name = "Start Year"> <option value="2011">2011</option> <option value="2012">2012</option> <option value="2013">2013</option> </select> <br /><br /> End Holiday: <select name "End Day"> <option value="01">01</option> <option value="02">02</option> <option value="03">03</option> <option value="04">04</option> <option value="05">05</option> <option value="06">06</option> <option value="07">07</option> <option value="08">08</option> <option value="09">09</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> <option value="22">22</option> <option value="23">23</option> <option value="24">24</option> <option value="25">25</option> <option value="26">26</option> <option value="27">27</option> <option value="28">28</option> <option value="29">29</option> <option value="30">30</option> <option value="31">31</option> </select> / <select name = "End Month"> <option value="january">Jan</option> <option value="febuary">Feb</option> <option value="march">Mar</option> <option value="april">Apr</option> <option value="may">May</option> <option value="june">Jun</option> <option value="july">Jul</option> <option value="august">Aug</option> <option value="september">Sep</option> <option value="october">Oct</option> <option value="november">Nov</option> <option value="december">Dec</option> </select> / <select name = "End Year"> <option value="2011">2011</option> <option value="2012">2012</option> <option value="2013">2013</option> </select> <br /><br /> Total Hours Required: <input type="text" name="total-hours" size="6"/> <br /><br /> Notes Box: <br /> <textarea name="Additional Info" rows="5" cols="40"> Enter here any additional information that may be required. </textarea> <br /><br /> Half Day Tickbox: <input type="checkbox" name="half-day" value="half-day"/> <br /><br /> Start Shift: <select name = "Start Shift Hours"> <option value="08">08</option> <option value="09">09</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> </select> : <select name = "Start Shift Minutes"> <option value="00">00</option> <option value="15">15</option> <option value="30">30</option> <option value="45">45</option> </select> <br /><br /> End Shift: <select name = "End Shift Hours"> <option value="08">08</option> <option value="09">09</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> </select> : <select name = "End Shift Minutes"> <option value="00">00</option> <option value="15">15</option> <option value="30">30</option> <option value="45">45</option> </select> <br /><br /> Lunch Start: <select name = "Lunch Start Hours"> <option value="08">08</option> <option value="09">09</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> </select> : <select name = "Lunch Start Minutes"> <option value="00">00</option> <option value="15">15</option> <option value="30">30</option> <option value="45">45</option> </select> <br /><br /> Lunch End: <select name = "Lunch End Hours"> <option value="08">08</option> <option value="09">09</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> </select> : <select name = "Lunch End Minutes"> <option value="00">00</option> <option value="15">15</option> <option value="30">30</option> <option value="45">45</option> </select> <br /><br /> Holiday Start Time: <select name = "Holiday Start Hours"> <option value="08">08</option> <option value="09">09</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> </select> : <select name = "Holiday Start Minutes"> <option value="00">00</option> <option value="15">15</option> <option value="30">30</option> <option value="45">45</option> </select> <br /><br /> Holiday End Time: <select name = "Holiday End Hours"> <option value="08">08</option> <option value="09">09</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> </select> : <select name = "Holiday End Minutes"> <option value="00">00</option> <option value="15">15</option> <option value="30">30</option> <option value="45">45</option> </select> <br /><br /> <input type="submit" value="Send"> </form> </font> </body> </head> </html> Any help will be appreciated. Thanks, Craig Alrighty so here's what I have. Live example: http://www.thestrikeforum.com/ex/ It's a image slideshow that dynamically gets all the images (via php) in the current directory and puts them into the slideshow array. The array then randomly displays the images in the slideshow (via javascript). There are 5 images in the folder rotateimage which also has the php script getimages.php in it. Currently only the first image fades in however I want all the images to fade in as the first one does. Codes: Php script that gets all the images for the array: PHP Code: <? //PHP SCRIPT: getimages.php Header("content-type: application/x-javascript"); //This function gets the file names of all images in the current directory //and ouputs them as a JavaScript array function returnimages($dirname=".") { $pattern="(\.jpg$)|(\.png$)|(\.jpeg$)|(\.gif$)"; //valid image extensions $files = array(); $curimage=0; if($handle = opendir($dirname)) { while(false !== ($file = readdir($handle))){ if(eregi($pattern, $file)){ //if this file is a valid image //Output it as a JavaScript array element echo 'galleryarray['.$curimage.']="'.$file .'";'; $curimage++; } } closedir($handle); } return($files); } echo 'var galleryarray=new Array();'; //Define array in JavaScript returnimages() //Output the array elements containing the image file names ?> Main html page with the javascript: Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script src="rotateimage/getimages.php"></script>
<script type="text/javascript">
var curimg=0
var max=galleryarray.length
var random=Math.floor(Math.random()*max)
function rotateimages(){
document.getElementById("slideshow").setAttribute("src", "rotateimage/"+galleryarray[random])
//curimg=(curimg<galleryarray.length-1)? curimg+1 : 0
random=Math.floor(Math.random()*max)
}
function initImage() {
imageId = 'slideshow';
image = document.getElementById(imageId);
setOpacity(image, 0);
image.style.visibility = 'visible';
fadeIn(imageId,0);
}
function setOpacity(obj, opacity) {
opacity = (opacity == 100)?99.999:opacity;
// IE/Win
obj.style.filter = "alpha(opacity:"+opacity+")";
// Safari<1.2, Konqueror
obj.style.KHTMLOpacity = opacity/100;
// Older Mozilla and Firefox
obj.style.MozOpacity = opacity/100;
// Safari 1.2, newer Firefox and Mozilla, CSS3
obj.style.opacity = opacity/100;
}
function fadeIn(objId,opacity) {
if (document.getElementById) {
obj = document.getElementById(objId);
if (opacity <= 100) {
setOpacity(obj, opacity);
opacity += 10;
window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
}
}
}
window.onload=function(){
setInterval("rotateimages()", 2500)
initImage()
}
</script>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Test</title>
</head>
<body>
<img src="rotateimage/pic1.jpg" name="slideshow" width="350" height="350" id="slideshow"/>
</body>
</html>
If anyone could assist me in doing so or can help me find a better way to do the fading images for the slideshow feel free to share.. here's the main page code WITHOUT the fading code: Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script src="rotateimage/getimages.php"></script>
<script type="text/javascript">
var curimg=0
var max=galleryarray.length
var random=Math.floor(Math.random()*max)
function rotateimages(){
document.getElementById("slideshow").setAttribute("src", "rotateimage/"+galleryarray[random])
//curimg=(curimg<galleryarray.length-1)? curimg+1 : 0
random=Math.floor(Math.random()*max)
}
window.onload=function(){
setInterval("rotateimages()", 2500)
initImage()
}
</script>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Test</title>
</head>
<body>
<img src="rotateimage/pic1.jpg" name="slideshow" width="350" height="350" id="slideshow"/>
</body>
</html>
I'm designing a page to fade multiple images (three) in and out over a set period of time (one minute, say). The code I have works as follows: I define an array and fill it with the div objects I want to fade in and out. I have some simple tags (2 for opaque, 1 for fading in, -1 for fading out, etc.) that I set to show the state of the object. First I check if the object is opaque, and if so set it to fade along with a time; Or if it's transparent I give it a 1 in 10 chance of fading in during this iteration. If it's currently fading in or out I check to make sure it's on track and change the opacity of the div accordingly. Originally, I had the function call back to itself using setTimeout after the loop had gone through all the divs and changed their opacities appropriately. This caused an out of memory error (though, strangely, if I had any alerts in the function it didn't give me the error). So the version below has the code in a while loop to let it run for 20 seconds - this gives me the "a script...run slowly, do you want to continue the script?" message. So I have several questions: 1) First and foremost, why is my function causing out of memory/run slowly errors and what is the best way to fix that? 2) Is there a better way to code this effect (final result will be six lights fading in and out for a minute or so). 3)I'm not an experienced programmer, so any bad practices, ways to streamline, no no's, etc. that you see, please point out. I've only posted the script here - the page simple consists of three divs (id's grad0, grad1, grad2) and a call to the function copied here. Thanks in advance. Code:
function commencez(){ //parent function to store var's
var TimeToFade = 10000;
theArray = new Array(2);
var wrench = new Date().getTime();
for (var a=0; a<3; a++){ //fill the array with objects
theArray[a] = document.getElementById("grad" + a);
theArray[a].FadeState = -2; //start them transparent
}
function fader() {
var check = new Date().getTime(); //stops the function after 30 seconds
if( check <= wrench + 30000 )
{
return;
}
for(var i=0; i<3; i++){
if (theArray[i].FadeState !=1 && theArray[i].FadeState != -1)
{
if( theArray[i].FadeState == 2)
{
theArray[i].FadeState = -1;
theArray[i].FadeTimeLeft = TimeToFade;
theArray[i].FadeBegan = new Date().getTime();
}
if( theArray[i].FadeState == -2)
{
var rndm=Math.floor(Math.random()*11);
if( rndm == 1)
{
theArray[i].FadeState = 1;
theArray[i].FadeTimeLeft = TimeToFade;
theArray[i].FadeBegan = new Date().getTime();
}
}
}
if( theArray[i].FadeState == 1 || theArray[i].FadeState == -1)
{
var now = new Date().getTime();
since = now - theArray[i].FadeBegan;
if( theArray[i].FadeTimeLeft <= since )
{
theArray[i].style.opacity = theArray[i].FadeState == 1 ? '1' : '0.2';
theArray[i].style.filter = 'alpha(opacity = ' +
(theArray[i].FadeState == 1 ? '100' : '20') + ')';
theArray[i].FadeState = theArray[i].FadeState == 1 ? 2 : 2;
}
theArray[i].FadeTimeLeft -= since;
var howMuch = theArray[i].FadeTimeLeft / TimeToFade;
if( theArray[i].FadeState == 1)
{
howMuch = 1-howMuch;
theArray[i].style.opacity = howMuch;
theArray[i].style.filter = 'alpha(opacity = ' + (howMuch*100) + ')';
}
if( theArray[i].FadeState == -1)
{
theArray[i].style.opacity = howMuch;
theArray[i].style.filter = 'alpha(opacity = ' + (howMuch*100) + ')';
}
}
} //close the for loop
setTimeout( fader() , 500); //last thing fader does is recall itself after half a second
} //close the fader function
fader();
} //close parent function
</script>
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