function helppop(r)
{
   if (r==1) {window.open("pages/accucast.htm","Help","scrollbars=yes,width=480,height=470,left=30,top=30");return false;}
   if (r==2) {window.open("pages/a_cluster.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==3) {window.open("pages/assembly.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==4) {window.open("pages/fox_saw.htm","Help","scrollbars=yes,width=460,height=380,left=30,top=30");return false;}
   if (r==5) {window.open("pages/grinder.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==6) {window.open("pages/injecting.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==7) {window.open("pages/oven.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==8) {window.open("pages/dies.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==9) {window.open("pages/robot.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==10) {window.open("pages/sand.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==11) {window.open("pages/shell_rack.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==12) {window.open("pages/shells.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==13) {window.open("pages/shells_poured.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;} 
   if (r==14) {window.open("pages/shells_room.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==15) {window.open("pages/slurry_dip.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}
   if (r==16) {window.open("pages/trees.htm","Help","scrollbars=yes,width=470,height=380,left=30,top=30");return false;}   
}