function GeoCalc(){
var Volum;
side = eval(document.ballvol.side.value);

if(side > 0){

	Volum = FormatNumber(Math.PI * (Math.pow(side,3) / 6));
	
	if(Volum >= 10000)
		resultVolum = "&#928; = 3.141592653589793<br />Surface<br />" + Volum + "  cm<sup>2</sup><br />" + FormatNumber(Volum/1000000) + "  m<sup>2</sup><br />";
	else
		resultVolum = "&#928; = 3.141592653589793<br />Surface<br />" + Volum + "  cm<sup>2</sup><br />";
	
	document.getElementById("volume").innerHTML = resultVolum;
}

}