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How can I make a thumbnail <img> show a full size image when clicked?

Answer 1

+4 A:

alt is text that is displayed when the image can't be loaded or the user's browser doesn't support images (e.g. readers for blind people).

Try using something like lightbox:

http://www.lokeshdhakar.com/projects/lightbox2/

update: This library maybe better as its based on jQuery which you have said your using http://leandrovieira.com/projects/jquery/lightbox/

Sam 2009-01-22 03:13:52

Answer 2

A:

I wouldn't do that - the alt tag is there specifically for when your image is not displayed. However, and this applies to a lot of jQuery stuff, the "rel" attribute is very useful.

Mike Robinson 2009-01-22 03:17:17

Answer 3

A:

That sort of functionality is going to require some Javascript, but it is probably possible just to use CSS (in browsers other than IE6&7).

dylanfm 2009-01-22 03:17:25

Answer 4

+1 A:

This won't do what you are expecting:

<img src="image1.gif" alt="image2.gif" />

The ALT attribute is text-only--it won't do anything special if you give it an image URL.

If you want to initially display a low res image, then replace it with a high res image, you could do some javascript coding to swap out the images. Or, perhaps load the image into a div which has a background pattern filled with the low res image. Then, when the high res image loads, it'll load overtop the background.

Unfortunately, there's no direct way to do this.

Your second attempt will create a link to image2, but actually display image1.

<a href="image2.gif" ><img src="image1.gif"/></a>

If you want to popup a higher res version, @Sam's suggestion is a good idea.

This CSS might work for you (it works for me in Firefox 3):

<html>
<head>
    <style>
     .lowres { background-image: url('low-res.png');}
    </style>
</head>
<body>
    <div class="lowres" style="height:500px; width:500px">
        <img src="hi-res.png" />
    </div>
</body>
</html>

In that example, you have to set the div height/width to that of the image. It will actually load both images simultaneously, but presuming the low-res one loads quick, you might see it first while the hi-res image downloads.

Michael Haren 2009-01-22 03:18:17

Answer 5

+2 A:

<img src='thumb.gif' onlick='this.src="full_size.gif"' />

Of course you can change the onclick event to load the image wherever you want.

geowa4 2009-01-22 03:19:54

Answer 6

A:

Thanks for the reply Sam,

I don't like lightbox because I find it too slow and fancy.

but I like geowa4's idea.

but please, keep your answers coming...

thanks

A Hassan 2009-01-22 03:23:55

Answer 7

A:

A scriptless, CSS-only experimental approach with image pre-loading^BONUS! and which only works in Firefox:

<style>
a.zoom .full { display: none; }
a.zoom:active .thumb { display: none; }
a.zoom:active .full { display: inline; }
</style>

<a class="zoom" href="#">
<img class="thumb" src="thumbnail.png"/>
<img class="full" src="fullsize.png"/>
</a>

Shows the thumbnail by default. Shows the full size image while the mouse button is clicked and held down. Goes back to the thumbnail as soon as the button is released. I'm in no way suggesting that this method be used; it's just a demo of a CSS-only approach that [very] partially solves the problem. With some z-index + relative position tweaks, it could work in other browsers too.

Ates Goral 2009-01-22 04:06:15

Answer 8

+2 A:

The

<a href="image2.gif" ><img src="image1.gif"/></a>

technique has always worked for me. I used it to good effect in my Super Bowl diary, but I see that the scripts I used are broken. Once I get them fixed I will edit in the URL.

Norman Ramsey 2009-01-22 04:57:06

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How can I make a thumbnail <img> show a full size image when clicked?

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