function bereken() {
		var A=parseFloat(document.formulier.A.value.replace(/\,/,"."));
		var B=parseFloat(document.formulier.B.value.replace(/\,/,"."));
		var L=parseFloat(document.formulier.L.value.replace(/\,/,"."));
  		gewicht=24.6615*(A-B)*B*L*document.formulier.N.value/1000;
  		afgerondgewicht=(Math.round(gewicht))/1000+"";
  		document.formulier.gewicht.value=(afgerondgewicht);
		var D=Math.PI*(Math.pow(A,4)-Math.pow(A-2*B,4))/640000;
  		document.formulier.D.value=(Math.round(D)+"");
		var E=D*20/A;
  		document.formulier.E.value=(Math.round(E)+"");
  		
  		var sel = document.formulier.nuance.selectedIndex;
  		var nuance=document.formulier.nuance.options[sel].text;
   		var R;
  		switch(nuance) {
  			case "S 235":  R=235;  	break;
  			case "S 275":  R=275;  	break;
  			case "S 355":  R=355;  	break;
  			case "S 420":  R=420;  	break;
  			case "S 460":  R=460;  	break;
  			case "Gr. B":  R=241;  	break;
  			case "X 42":  	R=290;  	break;
  			case "X 46":  	R=317;  	break;
  			case "X 52":  	R=359;  	break;
  			case "X 56":  	R=386;  	break;
  			case "X 60":  	R=414;  	break;
  			case "X 65":  	R=448;  	break;
  			case "X 70":  	R=483;  	break;
  		}
  		moment=E*R/1000;
  		document.formulier.moment.value=(Math.round(moment)+"");

  		return false;
	}
	
	
	
	
	function bereken2() {
		var A=parseFloat(document.formulier2.A.value.replace(/\,/,"."));
		var B=parseFloat(document.formulier2.B.value.replace(/\,/,"."));
		var LB=parseFloat(document.formulier2.LB.value.replace(/\,/,"."));
		var LP=parseFloat(document.formulier2.LP.value.replace(/\,/,"."));	
		var C=24.6615*(A-B)*B/1000;
		var D=Math.PI*(Math.pow(A,4)-Math.pow(A-2*B,4))/640000;
		var E=D*20/A;
  		var sel = document.formulier2.profiel.selectedIndex;
  		var profiel=document.formulier2.profiel.options[sel].text;
   		var F,G,J;
  		switch(profiel) {
  			case "2x AZ 12":  	F=670;  G=132.2;  	J=24320;  	break;
  			case "2x AZ 12-770": F=770;  G=145.2;  	J=33000;  	break;  			
  			case "2x AZ 13":  	F=670;  G=144.0;  	J=26400;  	break;
  			case "2x AZ 13-770": F=770;  G=152.1;  	J=34440;  	break;
  			case "2x AZ 13-10":  F=670;  G=150.4;  	J=27440;  	break;
  			case "2x AZ 14-770": F=770;  G=159.0;  	J=35890;  	break;
  			case "2x AZ 14":  	F=670;  G=156.6;  	J=28540;  	break;
  			case "2x AZ 14-770-10":  	F=770;  G=165.8;  	J=37330;  	break;
  			case "2x AZ 17":  	F=630;  G=136.8;  	J=39800;  	break;
  			case "2x AZ 17-700": F=700;  G=146.2;  	J=50720;  	break;
			case "2x AZ 18":  	F=630;  G=148.8;  	J=43080;  	break;
			case "2x AZ 18-700": F=700;  G=153.0;  	J=52920;  	break;
			case "2x AZ 18-10":  F=630;  G=155.5;  	J=44790;  	break;
			case "2x AZ 19":  	F=630;  G=162.0;  	J=46600;  	break;
			case "2x AZ 19-700": F=700;  G=160.0;  	J=55130;  	break;
			case "2x AZ 20-700": F=700;  G=167.0;  	J=57340;  	break;
			case "2x AZ 24-700": F=700;  G=191.4;  	J=78150;  	break;
   		case "2x AZ 25":  	F=630;  G=183.0;  	J=65820;  	break;
			case "2x AZ 26":  	F=630;  G=195.6;  	J=69940;  	break;
			case "2x AZ 26-700": F=700;  G=205.7;  	J=83610;  	break;
			case "2x AZ 28":  	F=630;  G=208.8;  	J=74260;  	break;
			case "2x AZ 28-700": F=700;  G=220.1;  	J=89070;  	break;
			case "2x AZ 37-700": F=700;  G=248.4;  	J=129350;  	break;		
			case "2x AZ 39-700": F=700;  G=263.7;  	J=136500;  	break;
			case "2x AZ 41-700": F=700;  G=279.1;  	J=143650;  	break;
			case "2x AZ 46":  	F=580;  G=265.2;  	J=128120;  	break;
			case "2x AZ 48":  	F=580;  G=279.2;  	J=134180;  	break;
			case "2x AZ 50":  	F=580;  G=293.4;  	J=140430;  	break;
			
			case "2x PU 6R":  	F=600;  G=84.3;  		J=10730;  	break;			
			case "2x PU 7R":  	F=600;  G=88.7;	  	J=11500;  	break;
			case "2x PU 8R":  	F=600;  G=97.3;	  	J=13000;  	break;
			case "2x PU 9R":  	F=600;  G=98.9;	  	J=20320;  	break;
			case "2x PU 10R":  	F=600;  G=107.6;  	J=22750;  	break;
			case "2x PU 11R":  	F=600;  G=116.3;  	J=25150;  	break;
			case "2x PU 13R":  	F=675;  G=131.2;  	J=34680;  	break;
			case "2x PU 14R":  	F=675;  G=141.0;  	J=37800;  	break;
			case "2x PU 15R":  	F=675;  G=150.8;  	J=40890;  	break;
			
			case "2x AU 14":  	F=750;  G=155.8;  	J=43060;  	break;
			case "2x AU 16":  	F=750;  G=172.5;  	J=49280;  	break;
			case "2x AU 17":  	F=750;  G=178.1;  	J=51400;  	break;
			case "2x AU 18":  	F=750;  G=177.0;  	J=58950;  	break;
			case "2x AU 20":  	F=750;  G=193.8;  	J=66660;  	break;
			case "2x AU 21":  	F=750;  G=199.3;  	J=69270;  	break;
			case "2x AU 23":  	F=750;  G=204.2;  	J=76050;  	break;
			case "2x AU 25":  	F=750;  G=220.8;  	J=84370;  	break;
			case "2x AU 26":  	F=750;  G=226.4;  	J=87220;  	break;
			case "2x PU 12":  	F=600;  G=132.2;  	J=25920;  	break;
			case "2x PU 12-10":  F=600;  G=139.2;  	J=27100;  	break;
			case "2x PU 18":  	F=600;  G=153.8;  	J=46380;  	break;
			case "2x PU 22":  	F=600;  G=172.3;  	J=59360;  	break;
			case "2x PU 28":  	F=600;  G=203.6;  	J=77350;  	break;
			case "2x PU 32":  	F=600;  G=228.3;  	J=86790;  	break;
			case "2x GU 6N":     F=600;  G=83.8;  	   J=11610;  	break;
			case "2x GU 7N":     F=600;  G=88.2;  	   J=12540;  	break;
			case "2x GU 7S":     F=600;  G=92.5;  	   J=13850;  	break;
			case "2x GU 8N":     F=600;  G=97.1;  	   J=14420;  	break;
			case "2x GU 12-500": F=500;  G=113.2;  	J=19640;  	break;
			case "2x GU 13-500": F=500;  G=121.7;  	J=21390;  	break;
			case "2x GU 15-500": F=500;  G=138.6;  	J=24810;  	break;
			case "2x GU 16-400": F=400;  G=123.9;  	J=18060;  	break;
			case "2x GU 18-400": F=400;  G=138.7;  	J=20870;  	break;

			case "3x PU 6R":  	F=600;  G=126.5;  	J=14940;  	break;			
			case "3x PU 7R":  	F=600;  G=133.0;	  	J=15980;  	break;
			case "3x PU 8R":  	F=600;  G=146.0;	  	J=18030;  	break;
			case "3x PU 9R":  	F=600;  G=148.4;	  	J=28260;  	break;
			case "3x PU 10R":  	F=600;  G=161.4;  	J=31570;  	break;
			case "3x PU 11R":  	F=600;  G=174.4;  	J=34830;  	break;
			case "3x PU 13R":  	F=675;  G=196.9;  	J=48040;  	break;
			case "3x PU 14R":  	F=675;  G=211.5;  	J=52280;  	break;
			case "3x PU 15R":  	F=675;  G=226.2;  	J=56470;  	break;
						
			case "3x PU 12":  	F=600;  G=198.3;  	J=36060;  	break;
			case "3x PU 12-10":  F=600;  G=208.8;  	J=37670;  	break;
			case "3x PU 18":  	F=600;  G=230.7;  	J=64240;  	break;
			case "3x PU 22":  	F=600;  G=258.4;  	J=82060;  	break;
			case "3x PU 28":  	F=600;  G=305.4;  	J=106490;  	break;
			case "3x PU 32":  	F=600;  G=342.4;  	J=119370;  	break;
			case "3x GU 6N":     F=600;  G=125.7;  	J=16200;  	break;
			case "3x GU 7N":     F=600;  G=132.4;  	J=17470;  	break;
			case "3x GU 7S":     F=600;  G=138.8;  	J=19260;  	break;
			case "3x GU 8N":     F=600;  G=145.6;  	J=20030;  	break;
			case "3x GU 12-500": F=500;  G=169.9;  	J=27390;  	break;
			case "3x GU 13-500": F=500;  G=182.5;  	J=29810;  	break;
			case "3x GU 15-500": F=500;  G=207.9;  	J=34550;  	break;
			case "3x GU 16-400": F=400;  G=185.9;  	J=25060;  	break;
			case "3x GU 18-400": F=400;  G=208.0;  	J=28920;  	break;
   		}  		
   		var I = profiel.charAt(0);
   		
   		var selB = document.formulier2.nuance.selectedIndex;
  		var nuance=document.formulier2.nuance.options[selB].text;
   		var R;
  		switch(nuance) {
  			case "S 235":  R=235;  	break;
  			case "S 275":  R=275;  	break;
  			case "S 355":  R=355;  	break;
  			case "S 420":  R=420;  	break;
  			case "S 460":  R=460;  	break;
  			case "Gr. B":  R=241;  	break;
  			case "X 42":  	R=290;  	break;
  			case "X 46":  	R=317;  	break;
  			case "X 52":  	R=359;  	break;
  			case "X 56":  	R=386;  	break;
  			case "X 60":  	R=414;  	break;
  			case "X 65":  	R=448;  	break;
  			case "X 70":  	R=483;  	break;
  		}

   		
  		var K=A+F*I+50;
  		document.formulier2.K.value=(Math.round(K)+"");
  		var S=(D+J)/K*1000;
  		document.formulier2.S.value=(Math.round(S)+"");
 		var N=E*(1+J/D)/K*1000;
  		document.formulier2.N.value=(Math.round(N)+"");
  		var L=(C+(G*LP/LB))/K*1000;
  		document.formulier2.L.value=(Math.round(L)+"");
  		moment=N*R/1000;
  		document.formulier2.moment.value=(Math.round(moment)+"");
  		var Q=(J+D)/K*1000*2.1;
  		document.formulier2.Q.value=(Math.round(Q)+"");
  		return false;
	}