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/* Copyright (c) 2010
* @author Laurence Wheway
* Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
* and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
*
* @version 1.2.0
*/
(function($) {
jQuery.extend({
isOnScreen: function(box, container) {
//ensure numbers come in as intgers (not strings) and remove 'px' is it's there
for(var i in box){box[i] = parseFloat(box[i])};
for(var i in container){container[i] = parseFloat(container[i])};
if(!container){
container = {
left: $(window).scrollLeft(),
top: $(window).scrollTop(),
width: $(window).width(),
height: $(window).height()
}
}
if( box.left+box.width-container.left > 0 &&
box.left < container.width+container.left &&
box.top+box.height-container.top > 0 &&
box.top < container.height+container.top
) return true;
return false;
}
})
jQuery.fn.isOnScreen = function (container) {
for(var i in container){container[i] = parseFloat(container[i])};
if(!container){
container = {
left: $(window).scrollLeft(),
top: $(window).scrollTop(),
width: $(window).width(),
height: $(window).height()
}
}
if( $(this).offset().left+$(this).width()-container.left > 0 &&
$(this).offset().left < container.width+container.left &&
$(this).offset().top+$(this).height()-container.top > 0 &&
$(this).offset().top < container.height+container.top
) return true;
return false;
}
})(jQuery);
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