function Calculate(){
	var result = 0;
	var reg = new RegExp("(,)","g");
	var nbSpokes = document.spokesCalc.nbSpokes.value;
	var rimDiam = document.spokesCalc.rimDiam.value.replace(reg,".");
	var centFlange = document.spokesCalc.centFlange.value.replace(reg,".");
	var flangeDiam = document.spokesCalc.flangeDiam.value.replace(reg,".");
	var spokeHoleDiam = document.spokesCalc.spokeHoleDiam.value.replace(reg,".");
	var nbCross = document.spokesCalc.nbCross.value;
	var arg1 = flangeDiam/2*Math.sin(2*Math.PI*nbCross/(nbSpokes/2));
	var arg2 = rimDiam/2-((flangeDiam/2)*Math.cos(2*Math.PI*nbCross/(nbSpokes/2)));
	result = Math.sqrt(Math.pow(arg1,2)+Math.pow(arg2,2)+Math.pow(centFlange,2))-spokeHoleDiam/2;
	
	document.getElementById('spokesSize').value = Math.round(result*10)/10;
}