ahcurrier

/*	
	Find the intersection(s) (x,y,z) and (x_,y_,z_) of three spheres centered
	at (x1,y1,z1), (x2,y2,z2) and (x3,y3,z3) with corresponding radii of r1, r2, and r3
	
	Adapted from http://mathforum.org/library/drmath/view/64311.html
*/

function intersect3spheres(x1, x2, x3, y1, y2, y3, z1, z2, z3, r1, r2, r3) {

	var a1, b1, c1, k1, a3, b3, c3, k3, a31, b31,