function showTip(id)
	{
		tips = new Array();
					tips[0] = 'Robotics simulation refers to a method for creating embedded applications for a "real" robot to perform.  Robot simulation is very useful in the conceptual, design, and manufacturing phases of robotics applications.  A key aspect of simulation is that it can be used while the robot is running, as a predictive tool or supervised learning module.';
						tips[1] = 'Robots that are not fixed to one location and have the ability to move around in their environment are called mobile robots.';
						tips[2] = 'The process of developing a mathematical wireframe representation of a 3D object is known as 3D modeling.';
						tips[3] = '3D rendering is a process similar to cinematography or photography, where scenes are lit and staged, and images or animations are produced.  Rendering is, essentially, the final stage in the creation of a 3D animation or image from a previously prepared scene.';
						tips[4] = 'A robot’s environment represents the work envelope for fixed-base robots, and the "world at large" where mobile robots are used.';
						tips[5] = 'A physics engine is a computer software program that uses variables such as velocity, friction, mass and wind resistance to simulate Newtonian physics models.  Physics engines are generally classified as either real-time or high-precision.';
						tips[6] = 'The property that determines the acceleration the body will have when acted upon by a given force is known as Mass.';
						tips[7] = 'Velocity is a vector quantity and is defined as the rate of change of position.';
						tips[8] = 'Friction is the force which resists the tangential, or lateral, motion of solid surfaces, layers of fluid, etc.  Friction is derived from the electromagnetic force between two charged particles.';
						tips[9] = 'A method of detecting, locating, and removing mistakes from a routine is called debugging.  In order to debug, or reduce defects, it is necessary to find and reduce the number of bugs.  When bugs are tightly coupled, the process becomes more complex since any change in one bug will adversely affect other bugs.';
						tips[10] = 'Trial and error is a method of problem solving to obtain both propositional knowledge and "know how".  Trial and error is also referred to as generate and test, or guess and check knowledge acquisition.';
						tips[11] = 'Offline describes a programming technique where any changes made to the program have no effect of the actual operation of hardwired components.';
						tips[12] = 'A control algorithm is a mathematical procedure for solving control system problems.';
						tips[13] = 'The reach-ability of a robot represents the maximum point in space that can be achieved by the robot end-effector.';
						tips[14] = 'The procedure of pre-startup inspection is commonly referred to as field checkout, or commissioning.';
						tips[15] = 'A video camera is a vision system that is a combination of hardware and software that allows a robot to record a visual image and to perform various manipulations of the video data provided by the camera and to extract specific information for related applications.';
					Tip(tips[id]);
	}