function logo(a){document.write(" " );}
function LargeCrucible(D,h,DD,th){document.write(" ");}
function ArcCrucible(D,h,DD,th,dh){
var R1,R2,tempH,x,xx,y,yy,m,mm,n,nn,r,rr,b;
dh=dh-th;
R1=Math.round((D*D/(8*dh))+dh/2);
R2=R1+th;
r=50;
x=r+DD;
b=h+dh-R1;
y=Math.round(Math.sqrt((R1+DD)*(R1+DD)-2*(R1-D/2)*x-(DD+D/2)*(DD+D/2)));
y=b+y;
m=Math.round(D/2+DD-R1*(DD+D/2-x)/(R1-r));
n=Math.round(b+R1*(y-b)/(R1-r));
tempH=Math.round(h+dh+th-R2+Math.sqrt(R2*R2-(DD+D/2)*(DD+D/2)));
rr=r+th;
xx=rr;
yy=Math.round(Math.sqrt(R2*R2-2*(R2-D/2-DD)*rr-(DD+D/2)*(DD+D/2)));
yy=b+yy;
mm=Math.round(D/2+DD-R2*(DD+D/2-rr)/(R2-rr));
nn=Math.round(b+R2*(yy-b)/(R2-rr));
document.write(" ");}
function iridium(){
document.write(" " );}