function PhysikCalc(){
var Result;
vala = eval(document.sppedcal.vala.value);
valb = eval(document.sppedcal.valb.value);

if((vala > 0) && (valb > 0)){

	Result = FormatNumber(vala / valb);
	
	document.getElementById("result").innerHTML = "Résultat<br>" + Result + " m/s<br />" + FormatNumber((Result / 1000) * 3600) + " Km/h";
}

}