var nDots = 7;

if (document.all&&window.print)

document.body.style.cssText="overflow-x:hidden;overflow-y:scroll"
var Xpos = 0;
var Ypos = 0;


var DELTAT = .01;

var SEGLEN = 10;


var SPRINGK = 10;

var MASS = 1;

var GRAVITY = 50;

var RESISTANCE = 10;

var STOPVEL = 0.1;

var STOPACC = 0.1;

var DOTSIZE = 11;


var BOUNCE = 0.75;


var isNetscape = navigator.appName=="Netscape";


var followmouse = true;

var dots = new Array();

init();


function init()
{

    var i = 0;

	for (i = 0; i < nDots; i++) {
	dots[i] = new dot(i);
    
	}
    
    
	if (!isNetscape) {

     
   }
    

    
	for (i = 0; i < nDots; i++) {
 
		dots[i].obj.left = dots[i].X;

        	dots[i].obj.top = dots[i].Y;
    
	}
    
    
    
	if (isNetscape) {

	startanimate();

    	} 
	else {

	setTimeout("startanimate()", 2000);
    
	}

}




function dot(i) 
{
    
	this.X = Xpos;
    
	this.Y = Ypos;
    
	this.dx = 0;
    
	this.dy = 0;
    
	if (isNetscape) {	
        
		this.obj = eval("document.dot" + i);
    
	} 
	else {
        
	this.obj = eval("dot" + i + ".style");
    }

}	



function startanimate() {
	setInterval("animate()", 20);

}


function setInitPositions(dots)
{

    
var startloc = document.all.tags("LI");
    
var i = 0;
    
for (i = 0; i < startloc.length && i < (nDots - 1); i++) {
        
	dots[i+1].X = startloc[i].offsetLeft
startloc[i].offsetParent.offsetLeft - DOTSIZE;
        
	dots[i+1].Y = startloc[i].offsetTop +
 startloc[i].offsetParent.offsetTop + 2*DOTSIZE;
    
}
    
dots[0].X = dots[1].X;

dots[0].Y = dots[1].Y - SEGLEN;

}


function MoveHandler(e)
{
    
Xpos = e.pageX;
    
Ypos = e.pageY;	  
    
return true;

}

function MoveHandlerIE() {
    
	Xpos = window.event.x + document.body.scrollLeft;
    
	Ypos = window.event.y + document.body.scrollTop;	  

}


if (isNetscape) {
    
	document.captureEvents(Event.MOUSEMOVE);
    
	document.onMouseMove = MoveHandler;

} 
else {
    
	document.onmousemove = MoveHandlerIE;

}



function vec(X, Y)
{
    
	this.X = X;
    
	this.Y = Y;

}

function springForce(i, j, spring)
{
    
	var dx = (dots[i].X - dots[j].X);
	var dy = (dots[i].Y - dots[j].Y);
    
	var len = Math.sqrt(dx*dx + dy*dy);
    
	if (len > SEGLEN) {
        
		var springF = SPRINGK * (len - SEGLEN);
        
		spring.X += (dx / len) * springF;
        
		spring.Y += (dy / len) * springF;
    
	}

}



function animate() {	
   
    
	var start = 0;
    
	if (followmouse) {
        
		dots[0].X = Xpos;
        
		dots[0].Y = Ypos;	
        
		start = 1;
    
	}
    
   
 	for (i = start ; i < nDots; i++ ) {
        
        
	var spring = new vec(0, 0);
        
	if (i > 0) {
            
		springForce(i-1, i, spring);
        
	}
        
	if (i < (nDots - 1)) {
            
	springForce(i+1, i, spring);
        
	}
        
      
        
	var resist = new vec(-dots[i].dx * RESISTANCE,
-dots[i].dy * RESISTANCE);
        
       
        
	var accel = new vec((spring.X + resist.X)/ MASS,
(spring.Y + resist.Y)/ MASS + GRAVITY);


        dots[i].dx += (DELTAT * accel.X);
        
	dots[i].dy += (DELTAT * accel.Y);
        
       
        
	if (Math.abs(dots[i].dx) < STOPVEL &&
 Math.abs(dots[i].dy) < STOPVEL &&
 Math.abs(accel.X) < STOPACC &&
 Math.abs(accel.Y) < STOPACC) {
 
	dots[i].dx = 0;

        dots[i].dy = 0;
        
	}
        
    
        
	dots[i].X += dots[i].dx;
        
	dots[i].Y += dots[i].dy;
        
       
        
	var height, width;
        
	if (isNetscape) {
            
		height = window.innerHeight + document.scrollTop;
            
		width = window.innerWidth + document.scrollLeft;
        
	} 
	else {	
            
		height = document.body.clientHeight + document.body.scrollTop;
            
		width = document.body.clientWidth + document.body.scrollLeft;
        
	}
        
     
        
	if (dots[i].Y >=  height - DOTSIZE - 1) {
            
		if (dots[i].dy > 0) {
                
			dots[i].dy = BOUNCE * -dots[i].dy;
            
		}
            
		dots[i].Y = height - DOTSIZE - 1;
        
	}
        
	if (dots[i].X >= width - DOTSIZE) {
            
		if (dots[i].dx > 0) {
                
			dots[i].dx = BOUNCE * -dots[i].dx;
            
		}
            
		dots[i].X = width - DOTSIZE - 1;
        
	}
        
	if (dots[i].X < 0) {
            
		if (dots[i].dx < 0) {
                
		dots[i].dx = BOUNCE * -dots[i].dx;
            
		}
            
		dots[i].X = 0;
        
	}
        
     
        
	dots[i].obj.left = dots[i].X;			
        
	dots[i].obj.top =  dots[i].Y;		
    
	}

}