function PhysikCalc(){
var Result;
kb = 1.3806504 * Math.pow(10,-23);
c = 299792458;
h = (6.62606896 * Math.pow(10,-34)) / 2 * Math.PI;
G = 6.67428 * Math.pow(10,-11);
M = eval(document.bhtemp.vala.value);

if(M > 0){

	Result = FormatNumber((h * Math.pow(c,3)) / (8 * Math.PI * kb * G * M));
	
	document.getElementById("result").innerHTML = "Formule : h.c<sup>3</sup> / 8.&#928;.k.G.M<br />Résultat<br>T=" + Result + " °K";
}

}