Curl.js 1.2 allows you to add individual curls (inc. backside mask) to images on your webpages. It uses unobtrusive javascript to keep your code clean. It works in all the major browsers - Mozilla Firefox 1.5+, Opera 9+, Safari and IE6+. On older browsers, it'll degrade and your visitors won't notice a thing. CVI-lab: Get a fast impression of the effects and their illustration qualities.

Setting Up

Download "curl.js" and include it into your webpage.

Using It

To get the page curl effect just add a class="curl" to the image.

Classes

• Initialisation class "curl"
• vary the size of the curl by adding isize followed by the desired size in percent:
  Curl size class "isize" - min=0 max=MinImageDimension default=33
• vary the shadow by adding ishadow followed by the opacity in percent:
  Curl shadow class "ishadow" - min=0 max=100 default=66
• vary the paperback color of the curl by adding icolor followed by the color:
  Curl color class "icolor" - min=000000 max=ffffff default=0
• vary the clipping by adding invert:
  Curl clipping class "invert"

Demonstration

Shows some of the things "curl.js" does.

First Image with class = "curl invert", others with class = "curl isizeN" (different sizes)...

Scripting Curls

If you want flexibility, use "cvi_curl_lib.js" instead of "curl.js". You can make your curls respond to user actions (e.g. changing the curl size when the image is hovered over).

Add image curl using Javascript

cvi_curl.add(image, options);
image should be an image element. options can contain a value for size, shadow, color or invert. The value for size and shadow should be between 0 and 100. The value for color should be between 0 and "#ffffff". The value for invert is boolean.

Examples:

cvi_curl.add(document.getElementById("myimg"), { shadow: 75, color: 0 }); cvi_curl.modify(document.getElementById("myimg"), { size: 50 });

Click to add or remove curl

Move over to in/decrease curl

Move over to change curl

Mouse up/down to change curl

Modify image curl using Javascript

cvi_curl.modify(image, options);
If the image has already a curl but the specified size or shadow or color or invert has changed, the curl will be changed accordingly.

Remove curl from an image using Javascript

cvi_curl.remove(image);

Set defaults using Javascript

cvi_curl.defaultSize = size;
cvi_curl.defaultShadow = shadow;
cvi_curl.defaultColor = color;
cvi_curl.defaultInvert = boolean;
Changes the default size and shadow and color. The default value for size is 33 and for shadow 66. The default value for color is 0. The default value for invert is false.

Why use Javascript Image Curls?

• Fast and easy to implement. Just add class="curl" to the image and your good to go.
• Don't need to spend time in an image editor creating an image effect.
• Works really well with forum avatars. Doesn't require additional server work.
• It's dead easy to change the attributes of the images.
• Free of charge use on non-commercial and private web sites.

In older browsers, the script degrades and your visitors won't notice a thing.

History

• Added invert clipping

• Initial Release
  IE is unable to show a proper backside if the image is scaled.

License

Curl.js is distributed under this LICENSE. License permits free of charge use on non-commercial and private web sites only. There are also Commercial Software Licenses available.

Images used are copyrighted and are used for demonstration only.

cvi.netzgesta.de  also visit  CVI-lab, S5 Reloaded and AJAX-FilmDB