Hey, cool. Move your mouse around and see what happens.
$(document).ready(function(){
$('body').mousemove(function(e){
$('*').each(function(){
offset = $(this).offset()
x = (e.pageX - (offset.left + parseInt($(object).css('width')) /2)) / 100
y = (e.pageY - (offset.top + parseInt($(object).css('height')) /2)) / 100
$(this).css('text-shadow', -(x)+'px '+ -(y)+'px 0 rgba(64, 64, 64, .3)');
})
});
})
See? Easy. @fjhat has even made a plugin!