Creating a spotlight effect on images

Creating a spotlight on a focused item, such as text or any graphic element on a web page, is often required to draw attention to that item. In this recipe, let's see how such an effect can be created on a collection of images. The constructs used in this example are summarized in the following table:

Construct	Type	Description
$("#identifier")	jQuery selector	This selects an element based on its ID
$("html_tag")	jQuery selector	This selects all elements with the specified HTML tag
$(this)	jQuery object	This refers to the current jQuery object
.addClass()	jQuery method	This adds the specified CSS class to each matched element
.css()	jQuery method	This gets the style property for the first matched element or sets the style property for every matched element
.hover()	jQuery event binder	This binds event handlers for mouseover and mouseout events
.removeClass()	jQuery method	This removes the...