var no = 5; 
var speed = 2;
var bubble = new Array();
bubble[0] = "images/bubble_small.gif"
bubble[1] = "images/bubble_small.gif"
bubble[2] = "images/bubble_small.gif"

var ns4up = (document.layers) ? 1 : 0;
var ie4up = (document.all) ? 1 : 0;
var ns6up = (document.getElementById&&!document.all) ? 1 : 0;
var dx, xp, yp;
var am, stx, sty;
var i, doc_width = 800, doc_height = 1800;

if (ns4up||ns6up) 
{
	doc_width = self.innerWidth;
	doc_height = self.innerHeight;
} 
else if (ie4up) 
{
	doc_width = document.body.clientWidth;
	doc_height = document.body.clientHeight;
}

dx = new Array();
xp = new Array();
yp = new Array();
am = new Array();
stx = new Array();
sty = new Array();
j = 0;

for (i = 0; i < no; ++ i) 
{
	dx[i] = 0;                       
	xp[i] = Math.random()*(doc_width-50);
	yp[i] = Math.random()*doc_height;
	am[i] = Math.random()*20;        
	stx[i] = 0.02 + Math.random()/10;
	sty[i] = 0.7 + Math.random();
  if (ns4up) 
  {                 
		if (i == 0) 
		{
			document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src=\""+ bubble[j] + "\" border=\"0\"></layer>");
    } 
    else 
    {
			document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src=\""+ bubble[j] + "\" border=\"0\"></layer>");
		}        
	} 
	else if (ie4up||ns6up) 
	{                
		if (i == 0) 
		{
			document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: 999999;VISIBILITY: visible; TOP: 15px; LEFT: 15px; width:1;\"><img src=\"" + bubble[j] + "\" border=\"0\"></div>");
		} 
		else 
		{
			document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: 999999;VISIBILITY: visible; TOP: 15px; LEFT: 15px; width:1;\"><img src=\"" + bubble[j] + "\" border=\"0\"></div>");
		}
	}
	if (j == (bubble.length-1)) 
	{ 
		j = 0; 
	} 
	else 
	{ 
		j++; 
	}
}

function bubbleNS() 
{
	for (i = 0; i < no; ++ i) 
	{
		yp[i] -= sty[i];                
		if (yp[i] < -50) 
		{
			xp[i] = Math.random()*(doc_width-am[i]-30);
			yp[i] = doc_height;
			stx[i] = 0.02 + Math.random()/10;
			sty[i] = 0.7 + Math.random();
			doc_width = self.innerWidth;
			doc_height = self.innerHeight;                
		}
		dx[i] += stx[i];
		document.layers["dot"+i].top = yp[i]+pageYOffset;
		document.layers["dot"+i].left = xp[i] + am[i]*Math.sin(dx[i]);
  }
	setTimeout("bubbleNS()", speed);
}

function bubbleIE_NS6() 
{
	for (i = 0; i < no; ++ i) 
	{ 
		yp[i] -= sty[i];
		if (yp[i] < -50) 
		{
			xp[i] = Math.random()*(doc_width-am[i]-30);
			yp[i] = doc_height - 100;
			stx[i] = 0.02 + Math.random()/10;
			sty[i] = 0.7 + Math.random();
			doc_width = ns6up?window.innerWidth-5:document.body.clientWidth;
			doc_height = ns6up?window.innerHeight-5:document.body.clientHeight;
		}
		dx[i] += stx[i];
		if (ie4up)
		{
			document.all["dot"+i].style.pixelTop = yp[i]+document.body.scrollTop;
			document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i]);
		}
		else if (ns6up)
		{
			document.getElementById("dot"+i).style.top=yp[i]+pageYOffset;
			document.getElementById("dot"+i).style.left=xp[i] + am[i]*Math.sin(dx[i]);
		}
	}
	setTimeout("bubbleIE_NS6()", speed);
}

if (ie4up)
{
	bubbleIE_NS6();
}