Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations Mike Lewis on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Gallery with image swapping / div swapping

Status
Not open for further replies.

HughbertD

Technical User
Apr 30, 2007
42
GB
Hi all,

A little while ago someone created a gallery for me, with thumbnails, it would swap the main image for the thumbnail, so no picture was displayed twice (both as thumb and main image) at the same time.

I now need to add some captions to the main image but can't figure out how to do it, I want it to swap over a div containing both picture and caption. I don't want the small thumbnails beneath to show their captions though, only the main image is to do that.

The original code I have is below, any help would be really appreciated



Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "[URL unfurl="true"]http://www.w3.org/TR/html4/strict.dtd">[/URL]
<html>
<head>
<title>None</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript">

	var thumbProportion = .2 // thumbnails are 20% of their full size;
	var swapImgClass = "";
	var fullSizeImg = "";
	var IE = false; 
	if (navigator.appName == "Microsoft Internet Explorer"){IE = true;}

	function swapImg(nImg){
		
		var thumbImg = nImg.getElementsByTagName('img')[0];	
		var thumbImgAlt = thumbImg.alt;
		var origFullWidth = fullSizeImg.width; 		
		var origFullHeight = fullSizeImg.height;
		var tempImgHolder = fullSizeImg.src;
		var origFullAlt = fullSizeImg.alt;
		fullSizeImg.src = thumbImg.src;
		thumbImg.src = tempImgHolder;
		swapImgClass.style.width = fullSizeImg.width + "px";
		thumbImg.style.width =  Math.round(origFullWidth * thumbProportion) + "px";	
		thumbImg.style.height =  Math.round(origFullHeight * thumbProportion) + "px";	
		thumbImg.alt = origFullAlt;
		thumbImg.title = origFullAlt;
		fullSizeImg.alt = thumbImgAlt;
		fullSizeImg.title = thumbImgAlt;
	}

	function init(){

		fullSizeImg = document.getElementById('fullSizeImg').getElementsByTagName('img')[0];
		var nGallery = document.getElementById("photoGallery").getElementsByTagName("a");
		for (i=0; i<nGallery.length; i++)
			{
			 nGallery[i].onclick = function()
				{
			 	 swapImg(this);
			 	 return false;
				}			
		 	nGallery[i].href = "#";			
			}
		IE ? nRule = document.styleSheets[0].rules : nRule = document.styleSheets[0].cssRules;
		for (i=0; i<nRule.length; i++)
			{
		 	 if (nRule[i].selectorText == ".swapImg")
				{	
				 swapImgClass = nRule[i];
				 nRule[i].style.width = fullSizeImg.width + "px";				 
				}		
			}		
	}

	IE ? attachEvent('onload', init, false) : addEventListener('load', init, false);	
	
</script>
<style type="text/css">

	 body {height: 1200px; background-color: #f0fff0;} 
	.swapImg {margin-left: auto; margin-right: auto; margin-top: 15px; border: 1px solid black;}
	.galleryContainer {position: fixed; bottom: 5px; left: 3%; height: auto; width: 95%;	
		           background-color: #f6eabc; border: 1px solid black; text-align: center;}
	.galleryContainer img {border: 2px solid blue; margin-left: 15px; margin-top: 5px; margin-bottom: 0px;}	

</style>
<!--[if gte IE 5.5]>
<![if lt IE 7]>
<style type="text/css">

	.galleryContainer {position: absolute; 		
		           top: expression(document.documentElement.scrollTop + 
			   document.documentElement.clientHeight - this.clientHeight - 5 + "px");}			

</style>
<![endif] 
<![endif]--> 
</head>
	<body>		
		<div id="fullSizeImg" class="swapImg">
			<img src="./images/CB1.jpg" alt="First Image Description" title="First Image Description">
		</div>
		<div id="photoGallery" class="galleryContainer">
			<a href="./images/CB2.jpg"><img src="images/CB2.jpg" width="64" height="96" alt="Second Image Description" title="Second Image Description"></a>
			<a href="./images/CB3.jpg"><img src="images/CB3.jpg" width="128" height="85" alt="Third Image Description" title="Third Image Description"></a>
			<a href="./images/CB4.jpg"><img src="images/CB4.jpg" width="64" height="96" alt="Fourth Image Description" title="Fourth Image Description"></a>
			<a href="./images/CB5.jpg"><img src="images/CB5.jpg" width="128" height="77" alt="Fifth Image Description" title="Fifth Image Description"></a>
		</div>
	</body>
</html>
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top