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.bhtime.vala.value);

if(M > 0){

	Result = FormatMeter((15360 * Math.PI * Math.pow(G,2) * Math.pow(M,3)) / (h * Math.pow(c,4)));
	
	document.getElementById("result").innerHTML = "Formule : 15360.&#928;.G<sup>2</sup>.M<sup>3</sup> / h.c<sup>4</sup><br />Résultat<br>Tv=" + Result;
}

}