function mminch() {

var inches = new Array(.03937,.05906,.06299,.07087,.07874,.08661,.09055,.09843,.10236,.11811,.12402,.13780,.15748,.17717,.19685,.21654,.23622,.24803,.27559,.31496,.35433,.39370,.43307,.47244,.49213,.51181,.55118,.59055,.62992,.66929,.70866,.74803,.78740,.86614,.90551,.94488,.98425,1.02362,1.06299,1.10236,1.18110,1.25984,1.29921,1.33858,1.41732,1.49606,1.53543,1.57480,1.65354,1.72228,1.77165,1.81102,1.88976,1.96850,2.04724);
var tblank = new Array("0","0","0","1","2","2","3","3","3","5","5","6","8","10","10","12","1/4","1/4","5/16","5/16","3/8","3/8","7/16","1/2","1/2","9/16","9/16","5/8","5/8","11/16","11/16","3/4","13/16","7/8","15/16","15/16","1","1-1/16","1-1/16","1-1/8","1-3/16","1-1/4","1-5/16","1-3/8","1-7/16","1-1/2","1-5/8","1-5/8","1-3/4","1-3/4","1-7/8","1-7/8","2","2","2-1/8");
var x = document.form1.mm.value;

var inch = document.getElementById("inch");
inch.firstChild.nodeValue=inches[x];
var blank = document.getElementById("blank");
blank.firstChild.nodeValue=tblank[x];

}

function pitchthread() {

var pinches = new Array(.01378,.01575,.01772,.01969,.02362,.02756,.02953,.03150,.03543,.03937,.04921,.05906,.06890,.07874,.09843,.11811,.13780,.15748,.17717,.19685,.23622);
var threadpi = new Array(72.57,63.50,56.44,50.80,42.33,36.29,33.87,31.75,28.22,25.40,20.32,16.93,14.51,12.70,10.16,8.47,7.26,6.35,5.64,5.08,4.23);
var basicth = new Array(.00895,.01023,.01151,.01279,.01534,.01790,.01918,.02046,.02301,.02557,.03196,.03836,.04475,.05114,.06393,.07671,.08950,.10229,.11507,.12786,.15343);
var x = document.form2.pitchm.value;

var pitchi = document.getElementById("pitchi");
pitchi.firstChild.nodeValue=pinches[x];
var tpi = document.getElementById("tpi");
tpi.firstChild.nodeValue=threadpi[x];
var bth = document.getElementById("bth");
bth.firstChild.nodeValue=basicth[x];

}