JavaScript - How Do I Swap An Image On A Page Using Multiple Variables?

Hey guys,

Im a little stuck with a JQ script im trying to create.

First the html:
Code:

            <div id="image_holder">
                <img src="images/default.jpg" id="image_swap" />
            </div>
            
            <ul id="links" class="test">
                <li><a href="#" name="images/01.jpg">Wall-E 2</a></li>
                <li><a href="#" name="images/02.jpg">Joker 1</a></li>
                <li><a href="#" name="images/03.jpg">Joker 2</a></li>
            </ul>

What im trying to accomplish is:

1.) When the mouse enters #links I want it to create a bool staying true if it's in there false if it has left.
2.) if the mouse is:
2a) swap the current image loaded out with the new image to be loaded
else:
2b.)swap the current image loaded out with the default image.

I have several different attempts at this, this script below is a working attempt. But because im referencing the actual "a" attribute, whenever I goto hover on a new link, it will quickly show the default image...

Code:

jQ('#links li a').hover(
	function() {
   		var img = jQ(this).attr("name");
		var parent = jQ(this).parent().parent().attr("id");

		jQ("#image_swap").fadeOut("medium", function() {
			// if mouse is within the #link id dont show default image
			if(parent === "links") {
				jQ(this).attr("src", img);
				jQ(this).fadeIn("medium");
			}
			// if the mouse is outside the #link id show the default image
		})
			
	},
	function() {
		jQ("#image_swap").attr("src", "images/default.jpg");
	}
);

Also as a side note, before asking why im using the "name" attribute to store the URL of the image, it's because the href will be pointed to an actual page.

Below is the routine I am using that when invoked swaps images for other images:

Code:

<script>
function swapImage(swapContName) {
      if (swapContName == 'mainImage1') {
      document.getElementById('mainImage1').src = 'L1Bswap.gif';
      document.getElementById('hand1').src = 'handr.gif';
      document.getElementById('help1_pic').src = 'answers2.gif';
      document.getElementById('homework').src = 'spacer.gif';
      document.getElementById('instruct').src = 'spacer.gif';
      document.getElementById('instructflag').src = 'spacer.gif';
      }
}
</script>

Fairly simple and works well.

But one of the images I would like to vanish (using the empty spacer.gif) has a border:

Code:

<img id="instructflag" border="1" src="FLAG.gif" width="23" height="15" align="left">

It must have this black border, but when it gets swapped for a blank, I am left with the black square.

Anyone have any idea how to vanish the border along with the graphic?

(I have some vague idea that "border" is not used any more, but anyway...).

I'm a designer and HTML/CSS coder only. I'd like to ask the community for the simplest solution on making an image swap to different image when the user clicks one of the many thumbnails. It's pretty standard gallery functionality, "click the thumbnail to see the big version".

I'm hoping to get some JavaScript that is easy to configure even though I don't know how to write JavaScript.

Here's a link to the page:
http://clientzone.thermostudios.com/.../bouquets.html
The thumbnails are on the left and the replicable image on the right.

Thanks in advance.

I am working on a demo for a movie site, and 90% of everything seems cool.
Here

I am doing php.flushes, .htaccess caching and using PNGs to help with performance. I might start using another sub site to grab all the scripting from to increase performance, but it seems a tad bit slow at the moment.

- There are a few issues one being when you click on X-Men and look at the gallery the images seem to flicker sometimes going from image to image.

I am using a fade script I found and then using setTimeout() to give the fade script time to do its thing then call for a new image.
Code:

		FadeOpacity(main_img_id, 100, 0, 600, 12);
		setTimeout("updateGallery('"+target_arr+"','"+main_img_id+"')", 600);

- Also in the same area I am checking clientHeight after each image modifying the marginTop. The thing with that is the clientHeight only seems to update after the second function call. I tried using a setTimeout() but that didn't nothing.
Code:

		document.getElementById(main_img_id).src = "assets/movie_images/"+arr[i];
		img_height = document.getElementById(main_img_id).clientHeight;

Any suggestions with improving image load performance, the clientHeight issue or the image flickering issue would be appreciated.

I have one image on a page and I am trying to mix 2 javascripts actions on that image:
- the first one is an automatic daily change of images (3 different images in this example)
- the second one is the display of the same image in bigger when the mouse is over it.
The total of images are 6 (2 different sizes for 3 images).

I have made a search but I didn't find the solution. Here is the code (the daily change works but not the rollover.
Thank you to correct it or giving an other solution. (My level in Javascript: low)

[CODE]<SCRIPT LANGUAGE="JavaScript">
function todaysPhoto(){
var i= 3 ;
var todaysFoto=new Array();
todaysFoto[1]="img1_small.jpg";
todaysFoto[2]="img2_small.jpg";
todaysFoto[3]="img3_small.jpg";
var todaysPic=new Array();
todaysPic[1]="img1_big.jpg";
todaysPic[2]="img2_big.jpg";
todaysPic[3]="img3_big.jpg";

t=new Date().getTime();
var days=Math.floor(t / 86400000) % i+1;
document.getElementById("todaysfoto").src="images/photos/"+todaysFoto[days];

function SwapImg(){
document.todaysfoto.src ="images/photos/"+todaysPic[days];
return true;}

function SwapBack(){
document.todaysfoto.src ="images/photos/"+todaysFoto[days];
return true;}
</SCRIPT>

<body onload="todaysPhoto()">
<a href="" onmouseover="SwapImg()" onmouseout="SwapBack()">
<img name="todaysfoto" width="150px" height="100px" id ="todaysfoto" /></a>[CODE]

I need a script and HTML code for an image effect like this: http://www.saksfifthavenue.com/main/...11947&ev19=1:2 Something very easy, if possible. Thanks.

I have an on/off image piece of code: (probably out of date!)

Code:

<!--
var NN3 = false;
image1= new Image();
image1.src = "photo1.gif";
image1on = new Image();
image1on.src = "photo2.gif";
function on3(name)   {
        document[name].src = eval(name + "on.src");
}
function off3(name)  {
        document[name].src = eval(name + ".src");
}
NN3 = true;

function on(name)  {
        if (NN3) on3(name);
}
function off(name)  {
        if (NN3) off3(name);
}
// -->

My problem is that I am trying to add sound to the clicking and mousing out of the image. Without sound, it works (and works exactly the way I want it to) like this;

Code:

<a href="javascript:myVoid()" onmousedown="on('image1');" onmouseover="off('image1')">
<img src="photo1.gif" name="image1"></a>

Adding (flash)sound I can do this and it works OK too:

Code:

<a href="javascript:myVoid()" onmousedown="on('image1');mySoundObj1.TGotoAndPlay('/go','start'); return true;" onmouseout="off('image1');">
<img src="photo1.gif" name="image1"></a>

But what I want to occur is that a second "swish" sound happens onmouseout (in the red place below) but ONLY if the mousedown has already occurred:

Code:

<!--
...

function on(name)  {
        if (NN3) on3(name);
}
function off(name)  {

 [SWISH SOUND HERE] 

        if (NN3) off3(name);
}
// -->

I hope this doesn't read complicated. I know it's really a simple toggle with an if, but I've tried dozens of things to no avail.

I have to replicate this many hundreds of times in a website...and I have to stick with flashsound (which I like anyway).

Any help would be appreciated.

Hey everyone,

I'm just trying to figure out if it is possible to swap the pages background image when a button is clicked without refreshing the page? I've looked around and can't really find anything helpful.

Any tips or pointers in the right direction would be much appreciated

Thanks

YD

Hi guys,

I have this little snippet of code that swaps a toggle image for news for a plus or minus sign showing if the div is open or closed. This code has worked before but i made a couple modifications today and it stopped working unexpectedly and i'm not sure why its failing.

I am presetting the div tag with a plus sign with css and then modifying it with javascript. The problem i am having is that when the div tag has been opened it does not swap the image to min.gif anylonger. It remains max.gif.


Here's the javascript code
Code:

	var News_Images = new Array();
	News_Images[0]="images/max.gif"
	News_Images[1]="images/min.gif"

function DisplayNews(body,box,link,id){
		
		$(body + " > div > .news_box").each(function(){
	        if($(this).css("display")=="block"){
	        	$(this).slideToggle("slow");
	        }
	     });

	     $(body + " > div > a[class='open_button_closed']").each(function(){ // search and change the + / - images
	     	  $(this).css("background-image",'url('+script_path+News_Images[0]+')');//
	     });

	     $(body + " > div > a[class='open_button']").each(function(){
	     	  $(this).css("background-image",'url('+script_path+News_Images[0]+')');//
	     });

	     if($(body + " > div > #"+box+id).css("display")=="none"){
	     	$(body + " > div > #"+box+id).slideDown("slow");
			
	     	$(body + " > div > #"+link+id).css("background-image",'url('+script_path+News_Images[1]+')');//
			alert("box =" + box + " id = " + id + " link =" + link);
	     }
	}

And here is the html sample
Code:

    <div class="recent_news_box">
    <a onclick="DisplayNews('#display_recent','news_link','open_button',3); return false;" id="open_button3" class="open_button"></a>
    <a class="link_block" href="">Some Title Text</a>
        <div style="display: none;" class="news_box" id="news_link3">
        <img class="front_image" alt="" src="" align="right">
        <span class="date">Jul 21, 2009</span>
        <div>Some Stuff to display here will be short text</div>											
        </div>
    </div>

Thanks in advance.

Ok so I have a problem which I previously thought I had solved.

I am creating a JavaScript Toggle off and on panel and although I have the code sussed for the toggling function there is something off on the image swap function

I currently have it set up on two panels, so the code is used multiple times, the problem is it changes both buttons each time rather that just the one that was clicked.

Anyway let's see what you think

Javascript:
Code:

<script type="text/javascript">
var imageURL = "../images/portfolio/open.png";

function changeImage() {

     if (document.images) {
              if (imageURL == "../images/portfolio/open.png") imageURL = "../images/portfolio/close.png";
         else if (imageURL == "../images/portfolio/close.png") imageURL = "../images/portfolio/open.png";
         
         document.images["img1"].src = imageURL;
		 document.images["img2"].src = imageURL;
     }
} 
</script>

HTML:
Code:

<a href="#" onclick="toggle_visibility('job1');"><img name="img1" src="../images/portfolio/open.png" onClick="changeImage();"></a>
<a href="#" onclick="toggle_visibility('job2');"><img name="img2" src="../images/portfolio/open.png" onClick="changeImage();"></a>

Any idea what I have done wrong and why it is changing both of the images ('img1' and 'img2') instead of changing them seperately as they are clicked ??

Can someone tell me how to veiw this eval's out put?

PHP Code:
function doButtons(picimage) {
eval("document['picture'].src = " + picimage + ".src");
} 




PHP Code:
<?php 

// to change the image size within the web page
    function imageResize($width, $height, $target) {
        //takes the larger size of the width and height and applies the formula accordingly...
        //this is so this script will work dynamically with any size image 
        
        if ($width > $height) {
            $percentage = ($target / $width); 
        } 
        else { 
            $percentage = ($target / $height); 
        } 
        
        //gets the new value and applies the percentage, then rounds the value 
        
        $width = round($width * $percentage); 
        $height = round($height * $percentage); 
        
        //returns the new sizes in html image tag format...
        //this is so you can plug this function inside an image tag and just get the 
        
        return "width='$width' height='$height'"; 
    } 
?>

<HEAD>
<SCRIPT LANGUAGE="JavaScript">
<!-- Original:  Ronnie T. Moore, Editor -->
<!-- Web Site:  The JavaScript Source -->

        <!-- Begin
        var photo_1 = new Image();
        var photo_2 = new Image();
        var photo_3 = new Image();

        photo_1.src = "uploads/harkly_1.jpg";
        photo_2.src = "uploads/harkly_2.jpg";
        photo_3.src = "uploads/harkly_3.jpg";

        function doButtons(picimage) {
        eval("document['picture'].src = " + picimage + ".src");
        }

        //  End -->
</script>
</HEAD>

<?php //get the image size of the picture and load it into an array 

$photo_1="uploads/harkly_1.jpg";
$photo_2="uploads/harkly_2.jpg";
$photo_3="uploads/harkly_3.jpg";

$myImg1 = getimagesize($photo_1);
$myImg2 = getimagesize($photo_2);
$myImg3 = getimagesize($photo_3);


echo "

<BODY>
    <center>
        <table border=1>
        <tr><td>

        <p>
        <li><a href = '' onmouseover = \"doButtons('photo_1')\"><img name='photo_1' src='$photo_1' ";echo imageResize($myImg1[0], $myImg1[1], 55); echo " border=0><p>

        <li><a href = '' onmouseover = \"doButtons('photo_2')\"><img name='photo_2' src='$photo_2' ";echo imageResize($myImg2[0], $myImg1[1], 55); echo " border=0><p>

        <li><a href = '' onmouseover = \"doButtons('photo_3')\"><img name='photo_3' src='$photo_3' ";echo imageResize($myImg3[0], $myImg1[1], 55); echo " border=0><p>

        <td width=440 height=300> 
        <img name='picture' src=uploads/harkly_1.jpg ";echo imageResize($myImg1[0], $myImg1[1], 300); echo " border=0></td> 

    </tr>
    </table>
</center>
    ";
?>

New to JavaScript so PLEASE bear with me. Trying hard to learn. My client specifically asked for a type of menu (scroll over a thumbnail and you see a large photo in the column next to it. And of course the thumbnail is clickable to new page. I am using this Jeremy Keith script:


PHP Code:
/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: Jeremy Keith / Anonymous | http://www.alistapart.com/articles/imagegallery/ */
function showPic(whichpic) {
  if (document.getElementById) {
    document.getElementById('placeholder').src = whichpic.href;
    if (whichpic.title) {
      document.getElementById('desc').childNodes[0].nodeValue = whichpic.title;
    } else {
      document.getElementById('desc').childNodes[0].nodeValue = whichpic.childNodes[0].nodeValue;
    }
    return false;
  } else {
  return true;
  }
}

var previousToggle=null;
function toggleMe(a){
  var e=document.getElementById(a);
  if(!e)return true;
  if(e.style.display=="none"){
    e.style.display="block";
    if(previousToggle)previousToggle.style.display="none";
    previousToggle=e;
  }
  return true;
} 


and it works fine, except that I can't figure out how to make it showpic on mouseover and still go to new URL (basic link to a page) onclick.

Here's a link (one of 8)in the body:

PHP Code:
<a onmouseover="toggleMe('para1'); showPic(this); return false;"  href="design.html" title="blah blah blah">
<img src="images/pix_smaller3.jpg"  width="70" height="70"></a> 


It either links to new page with the href="design.html", or swaps in larger pic if I href to the img file, but I can't seem to get BOTH to work. I obviously want the <a> to be to a new page, not the larger img. Shouldn't showPic take care of this? Where is showPic getting its imgs from?

I know that this can't be that complicated, but I have been up for 2 nights trying to figure this out. Any help appreciated...

I would like to add a submenu that pops up when the mouse moves over the first-level menu option.
I succesfully added the submenu. However, now the image-swap script (the script that makes that the image that you see change as you move your mouse on the image) doesn't work anymore.
Does anyone have any idea what I'm doing wrong?


The relevant part of the header:
Code:

<script type="text/JavaScript">
<!--
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
//-->
</script>

	#nav, #nav ul { /* all lists */
		padding: 0;
		margin: 0;
		list-style: none;
		float : left;
		width : 20.35em;
	}
	
	#nav li { /* all list items */
		position : relative;
		float : left;
		line-height : 0em;
		margin-bottom : -1px;
		width: 11em;
	}
	
	#nav li ul { /* second-level lists */
		position : absolute;
		left: -999em;
		margin-left : 18.35em;
		margin-top : -1.35em;
	}
	
	#nav li a {
		width : 10em;
		display : block;
		color : none;
		font-weight : bold;
		text-decoration : none;
		background-color : none;
		padding : 0 0.5em;
	}
	
	#nav li a:hover {
		color : none;
		background-color : none;
	}
	
	#nav li:hover ul ul, #nav li:hover ul ul ul, #nav li.sfhover ul ul, #nav li.sfhover ul ul ul {
		left: -999em;
	}
	
	#nav li:hover ul, #nav li li:hover ul, #nav li li li:hover ul, #nav li.sfhover ul, #nav li li.sfhover ul, #nav li li li.sfhover ul { /* lists nested under hovered list items */
		left: auto;
	}
	
	#content {
		margin-left : 12em;
	}
-->
</style>

<script type="text/javascript"><!--//--><![CDATA[//><!--

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);
//--><!]]></script>

The relevant part of the body code:

Code:

<table width="314" border="0" cellspacing="0" cellpadding="0">
      <tr>
        <td width="315"><div align="center"><a href="ob.php" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image10','','afbeeldingen/menuob2.gif',1)"><img src="afbeeldingen/spacer.gif" alt="spacer" width="5" height="10" hspace="0" vspace="0" border="0" /><br />
                  <img src="afbeeldingen/menuob1.gif" alt="OB" name="Image10" width="309" height="27" border="0" id="Image10" /></a><br />

<a href="MS.php" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image11','','afbeeldingen/menums2.gif',1)"><img src="afbeeldingen/menums1.gif" alt="MS" name="Image11" width="309" height="27" vspace="3" border="0" id="Image11" /></a><br />

<a href="kt.php" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image12','','afbeeldingen/menukt2.gif',1)"><img src="afbeeldingen/menukt1.gif" alt="KT" name="Image12" width="309" height="27" border="0" id="Image12" /></a>

<a href="contact.php" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image15','','afbeeldingen/menucontact2.gif',1)"><img src="afbeeldingen/menucontact1.gif" alt="Contact" name="Image15" width="309" height="27" vspace="3" border="0" id="Image15" /><br /></a>

</div></td>
      </tr>
    </table>

<ul id="nav">
<li>
<a href="MS.php" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image11','','afbeeldingen/menums2.gif',1)"><img src="afbeeldingen/menums1.gif" alt="MS" name="Image11" width="309" height="27" vspace="3" border="0" id="Image11" /></a><br />
<ul>
<li>
<a href="aa.php" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image11','','afbeeldingen/menuaa2.gif',1)"><img src="afbeeldingen/menuaa1.gif" alt="AA" name="Image11" width="309" height="27" vspace="3" border="0" id="Image11" /></a><br />
</li>
<li>
<a href="bb.php" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image11','','afbeeldingen/menubb2.gif',1)"><img src="afbeeldingen/menubb1.gif" alt="BB" name="Image11" width="309" height="27" vspace="3" border="0" id="Image11" /></a><br />
</li>
<li>
<a href="cc.php" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image11','','afbeeldingen/menucc2.gif',1)"><img src="afbeeldingen/menucc1.gif" alt="CC" name="Image11" width="309" height="27" vspace="3" border="0" id="Image11" /></a><br />
</li>
</ul></li></ul>

Hard To Explain What I need. Looking for javascript, to do what i've hap-hazardly slapped together he
I'd like to do this without having to reload a page or create a new page for each image.

http://www.samivesphotography.com/redes/portraits.html

Specifically the switching of the main image by the thumbnails. The difference in what i've seen online, is that i'm actually using them as a cell background.

-Sam

When performing an Ajax request I want to change the submit button into a loading image and then swop it back again when the Ajax request is complete.

I don't want a loading image anywhere else as on mobile phones it can't always be seen due to small screen size.

I have grabbed the event (which references the form, is that right?) and I have something like this:

Code:

<button type="submit" name="name_can_vary">Search</button>
event.name_can_vary.style.visibility = 'hidden';
//(obviously this isn't complete code but no doubt explains what I am talking about)

..which would hide the button and works exactly as I want to this point, but of course it does;t return when Ajax has completed or show the loading image.

Ideally, instead of just hiding the button I want JavaScript to swop the button for the loading image. I suppose I could have extra HTML on every page that is made visible with the loading image but I would rather have JS do everything from here (saves editing all pages with submit buttons on).

Thanks for any help.