$(selector).realshadow(); // options are optional
$(selector).realshadow({
followMouse: false, // true by default
pageX: x, // x coordinate of the light source
pageY: y // y coordinate of the light source
c: { // shadow color
r: 1, // red channel for shadow
g: 1, // green channel for shadow
b: 1, // blue channel for shadow
}
});