https://davidarwhite.com/wp-content/plugins/supercarousel/js/jquery.ismouseover.js?ver=7.0.6

1//jQuery ismouseover  method
2(function($){ 
3    $.mlp = {x:0,y:0}; // Mouse Last Position
4    function documentHandler(){
5        var $current = this === document ? $(this) : $(this).contents();
6        $current.mousemove(function(e){jQuery.mlp = {x:e.pageX,y:e.pageY}});
7        $current.find("iframe").load(documentHandler);
8    }
9    $(documentHandler);
10    $.fn.ismouseover = function(overThis) {  
11        var result = false;
12        this.eq(0).each(function() {  
13                var $current = $(this).is("iframe") ? $(this).contents().find("body") : $(this);
14                var offset = $current.offset();             
15                result =    offset.left<=$.mlp.x && offset.left + $current.outerWidth() > $.mlp.x &&
16                            offset.top<=$.mlp.y && offset.top + $current.outerHeight() > $.mlp.y;
17        });  
18        return result;
19    };  
20})(jQuery);