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Scientific calculator for chemists with notebook is a fully functioning JavaScript calculator. This calculator code can be used as common scientific calculator code (sin, cos, log, power, root, memory), but it also includes a molecular weight calculator and the tables with various physical and chemical constants. The calculator contains a list with task history, storing all the recent inputs and results. Scientific calculator displays the numbers rounded to a user-specified number of decimal places.

Label: Scientific calculator for chemists with notebook

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<script language="javascript">
<!--
// Scientific Calculator written by Eni Generalic
var broj = "0"
var tocka = 0
var eksp = 0
var eksponent = 3
var rjesenje = 0
var zastavica = 0
var decimala = 0
var enter = ""
var ConstOpen = 0
var ConstWin = ""
var MenuOpen = 0
var MenuWin = ""
var CalcOpen = 0
var CalcWin = ""
var MainWin = ""
var element = ""
var abc = "";


function start(){
	enter = document.racunalo.notes.value;
	if (enter.length > 2) {enter = enter.charAt(enter.length-1)};
	document.racunalo.notes.value = "";
	document.racunalo.zadatak.focus()
}


function remote(stranica){
	ConstOpen = 1;
	if (ConstWin.open) {
		ConstWin.document.konstante.naslov.focus()
	}
	else {
		ConstWin=window.open(stranica, "", "width=300,height=500,scrollbars=yes");
		ConstWin.creator=self
	}
}


function Zatvoreno() {
	if (ConstOpen == 1) {ConstWin.ConstOpen = 1; ConstWin.close()}
	if (CalcOpen == 1) {CalcWin.close()}
	if (MenuOpen == 1) {MenuWin.close()}
}


function memory(operator) {

	document.racunalo.zadatak.focus();

	if (operator == 1) {		// MS 
		document.racunalo.memorija.value = document.racunalo.rezultat.value
	}
	else if (operator == 2)	{	// MR
		var memorija = document.racunalo.memorija.value;
		if (memorija==0 || slovo(memorija.charAt(0))) {memorija = ""};
		document.racunalo.zadatak.value += memorija
	}
	else if (operator == 3) {	// CLS
		if (document.racunalo.zadatak.value == "") {
			document.racunalo.rezultat.value = ""
		}
		else {
			document.racunalo.zadatak.value = ""
		}
	}
	else if (operator == 4) {	// Reset
		document.racunalo.notes.value = "";
		document.racunalo.zadatak.focus()
	}
}


function display(noviznak) {
	if (noviznak=="")
		{document.racunalo.zadatak.focus()}
	else
		{document.racunalo.rezultat.select()}
}


function dodajBroj(noviznak) {
	document.racunalo.zadatak.focus();
	document.racunalo.zadatak.value += noviznak
}


function izracunaj(zarez) {
	var pitanje = "";
	var mem = 0;

	if (zarez >= 1) {
		if (document.racunalo.zadatak.value == "") {
			broj = document.racunalo.rezultat.value
		}
		else {
	    	broj = document.racunalo.zadatak.value;
			if (ubacirezultat(broj.charAt(0))) {
				broj = document.racunalo.rezultat.value + broj
			}
		}
	}

	for (var i=0; i<broj.length; i++) {
		if (slovo(broj.charAt(i))) {var kem = 1};
		if (broj.charAt(i) == ",") {pitanje += "."}
		else if (broj.charAt(i) == " ") {}
		else {pitanje += broj.charAt(i)}
	}

	if (operator(broj.charAt(broj.length-1))) {return false};

	if (zarez == 1) {
		document.racunalo.notes.value += pitanje + enter;
		if (kem == 1) {
			var atom = "+" + pitanje;
			pitanje = masa(atom)
		}
		else {
			pitanje = eval("1*" + pitanje)
		}
	}
	else if (zarez > 1) {
		pitanje = eval("1*" + pitanje);
		pitanje = matematika(zarez, pitanje)
	}

	document.racunalo.oldrezultat.value = pitanje;

	zaokruzi(pitanje);

	document.racunalo.zadatak.value = "";
 	document.racunalo.zadatak.focus()
}


function matematika(zarez, rjesenje) {
 with (Math)
  {
	if (zarez == 2) {
		document.racunalo.notes.value += rjesenje + "^2" + enter;
		rjesenje = pow(rjesenje, 2)
	}
	else if (zarez == 3) {
		document.racunalo.notes.value += rjesenje + "^(1/2)" + enter;
		rjesenje = sqrt(rjesenje)
	}
	else if (zarez == 4) {
		document.racunalo.notes.value += rjesenje + "*(-1)" + enter;
		rjesenje = -rjesenje
	}
	else if (zarez == 5) {
		document.racunalo.notes.value += "ln(" + rjesenje + ")" + enter;
		rjesenje = log(rjesenje)
	}
	else if (zarez == 6) {
		document.racunalo.notes.value += "e^" + rjesenje + enter;
		rjesenje = pow(E, rjesenje)
	}
	else if (zarez == 7) {
		document.racunalo.notes.value += "1/" + rjesenje + enter;
		rjesenje = 1/rjesenje
	}
	else if (zarez == 8) {
		document.racunalo.notes.value += "log(" + rjesenje + ")" + enter;
		rjesenje = log(rjesenje)/LN10
	}
	else if (zarez == 9) {
		document.racunalo.notes.value += "10^" + rjesenje + enter;
		rjesenje = pow(10, rjesenje)
	}
	else if (zarez >= 10 && zarez <= 12) {
		if (zarez == 10) {
			document.racunalo.notes.value += "atan(" + rjesenje + ")" + enter;
			rjesenje = atan(rjesenje)
		}
		else if (zarez == 11) {
			document.racunalo.notes.value += "acos(" + rjesenje + ")" + enter;
			rjesenje = acos(rjesenje)
		}
		else if (zarez == 12) {
			document.racunalo.notes.value += "asin(" + rjesenje + ")" + enter;
			rjesenje = asin(rjesenje)
		}

		if (document.racunalo.stupnjevi[1].checked) {rjesenje = (rjesenje * 180) / PI}
	}
	else if (zarez >= 14 && zarez <= 16) {
		if (document.racunalo.stupnjevi[1].checked)
			{radijani = (rjesenje / 180) * PI}
		else
			{radijani = rjesenje};

		if (zarez == 14) {
			document.racunalo.notes.value += "tan(" + rjesenje + ")" + enter;
			rjesenje = tan(radijani)
		}
		else if (zarez == 15) {
			document.racunalo.notes.value += "cos(" + rjesenje + ")" + enter;
			rjesenje = cos(radijani)
		}
		else if (zarez == 16) {
			document.racunalo.notes.value += "sin(" + rjesenje + ")" + enter;
			rjesenje = sin(radijani)
		}
	}
	else if (zarez == 17) {
		document.racunalo.notes.value += rjesenje + "%" + enter;
		rjesenje = rjesenje/100
	}
	else if (zarez == 18) {
		document.racunalo.notes.value += rjesenje + "ppm" + enter;
		rjesenje = rjesenje/1000000
	}
	else if (zarez == 20) {
		document.racunalo.notes.value += rjesenje + "!" + enter;
		rjesenje = factorial(rjesenje)
	}
	else if (zarez == 21) {
		eksponent = prompt("Unesite eksponent / Please enter exponent", 3);
		document.racunalo.notes.value += rjesenje + "^" + eksponent + enter;
		rjesenje = pow(rjesenje, eksponent)
	}
	else if (zarez == 22) {
		eksponent = prompt("Unesite korijen / Please enter root", 3);
		document.racunalo.notes.value += rjesenje + "^(1/" + eksponent + ")" + enter;
		rjesenje = pow(rjesenje, (1/eksponent))
	}
	return rjesenje
 }
}


function zaokruzi(ebroj) {

decimala=parseFloat(document.racunalo.izaZareza.options[document.racunalo.izaZareza.selectedIndex].value);
	var strbroj = ebroj + " ";
	if (strbroj.charAt(0) == ".") {strbroj = "0" + strbroj};
	var intbroj = strbroj.length - 1;
	deczarez(strbroj);

	if (intbroj > 16 && eksp == -1) {
		if (decimala == -1) {decimala = 14};
		strbroj = izazareza(strbroj.substring(0,intbroj)) + " ";
		intbroj = strbroj.length - 1;
		deczarez(strbroj)
	}

	if (decimala >= 0 && decimala != 14) {
		if (tocka > 0) {
			var odgovor = izazareza(strbroj.substring(0,intbroj))
		}
		else {
			ebroj = strbroj.substring(0,intbroj);
			if (decimala > 0) {
				ebroj += ".";
				for (var n = 0; n < decimala; n++) {
					ebroj += "0"
				}
			}
			var odgovor = ebroj
		}
	}
	else {
		decimala = 14;
		var odgovor = izazareza(strbroj)
	}

	if (odgovor.charAt(0) == ".") {odgovor = "0" + odgovor};

	document.racunalo.rezultat.value = odgovor;
	document.racunalo.notes.value += " = " + odgovor + enter;
}


function deczarez(novibroj) {
	tocka = 0;
	eksp = 0;

	tocka = novibroj.indexOf(".");
	eksp = novibroj.indexOf("e")
}


function izazareza(novibroj) {
 with (Math) {

	if (eksp == -1) {
		var duzina = tocka;
		if (duzina == -1) {duzina = novibroj.length};
		var desni = "";

		if (duzina > 16) {
			var privremeni = round(novibroj*pow(10, 18)) + " ";
			var novie = privremeni.indexOf("e");
			var lijevi = (privremeni.substring(0,novie));

			lijevi = round(lijevi*pow(10, 15))/pow(10, 15) + " ";
			desni = (privremeni.substring(novie+2,privremeni.length-1));
			desni = "e+" + (desni-18)
		}
		else {
			var lijevi = round(novibroj*pow(10, decimala))/pow(10, decimala) + " "
		}
	}
	else {
		var lijevi = novibroj.substring(0,eksp);
		var desni = novibroj.substring(eksp,novibroj.length);

		lijevi = round(lijevi*pow(10, decimala))/pow(10, decimala) + " "
	}

	lijevi = lijevi.substring(0,lijevi.length - 1);

	if (lijevi.charAt(0) == ".") {lijevi = "0" + lijevi};

	if (decimala < 14) {
		if (lijevi.indexOf(".") == -1 && decimala != 0) {lijevi += "."};
		var nula = (tocka + decimala) - (lijevi.length - 1);
		if (nula > 0 && decimala > 0) {
			for (var n = 0; n < nula; n++) {
				lijevi += "0"
			}
		}
	}

	return (lijevi + " " + desni)
 }
}


function factorial(n) {
	if ((n == 0) || (n == 1)) {
		return 1
	}
	else {
		var odgovor = (n * factorial(n-1));
		return odgovor
	}
}


function masa(atom) {
 with (Math) {
 	var atominfo = false
	var mm=""
	var mmdn=""
	var mmup=""
	var znak=""
	var izraz=""
	var H=1.00794
	var He=4.002602
	var Li=6.941
	var Be=9.012182
	var B=10.811
	var C=12.0107
	var N=14.0067
	var O=15.9994
	var F=18.9984032
	var Ne=20.1797
	var Na=22.98977
	var Mg=24.305
	var Al=26.981538
	var Si=28.0855
	var P=30.973761
	var S=32.065
	var Cl=35.453
	var Ar=39.948
	var K=39.0983
	var Ca=40.078
	var Sc=44.95591
	var Ti=47.867
	var V=50.9415
	var Cr=51.9961
	var Mn=54.938049
	var Fe=55.845
	var Co=58.9332
	var Ni=58.6934
	var Cu=63.546
	var Zn=65.39
	var Ga=69.723
	var Ge=72.64
	var As=74.9216
	var Se=78.96
	var Br=79.904
	var Kr=83.8
	var Rb=85.4678
	var Sr=87.62
	var Y=88.90585
	var Zr=91.224
	var Nb=92.90638
	var Mo=95.94
	var Tc=98
	var Ru=101.07
	var Rh=102.9055
	var Pd=106.42
	var Ag=107.8682
	var Cd=112.411
	var In=114.818
	var Sn=118.71
	var Sb=121.76
	var Te=127.6
	var I=126.90447
	var Xe=131.293
	var Cs=132.90545
	var Ba=137.327
	var La=138.9055
	var Ce=140.116
	var Pr=140.90765
	var Nd=144.24
	var Pm=145
	var Sm=150.36
	var Eu=151.964
	var Gd=157.25
	var Tb=158.92534
	var Dy=162.5
	var Ho=164.93032
	var Er=167.259
	var Tm=168.93421
	var Yb=173.04
	var Lu=174.967
	var Hf=178.49
	var Ta=180.9479
	var W=183.84
	var Re=186.207
	var Os=190.23
	var Ir=192.217
	var Pt=195.078
	var Au=196.96655
	var Hg=200.59
	var Tl=204.3833
	var Pb=207.2
	var Bi=208.98038
	var Po=209
	var At=210
	var Rn=222
	var Fr=223
	var Ra=226
	var Ac=227
	var Th=232.0381
	var Pa=231.03588
	var U=238.02891
	var Np=237
	var Pu=244
	var Am=243
	var Cm=247
	var Bk=247
	var Cf=251
	var Es=252
	var Fm=257
	var Md=258
	var No=259
	var Lr=262
	var Pi=3.141592653589793;
	
	for (var i=0; i<atom.length; i++) {
		mm = atom.charAt(i)
		mmup = atom.charAt(i+1)
		bigup=mm.toUpperCase()
		mmdn = atom.charAt(i-1);

		if (mm == "[") {mm = "("}
		else if (mm == "]") {mm = ")"}
		else if (mm == ",") {mm = "."}

		if (slovo(mm)) {atominfo = true};
		if (matoperator(mm)) {atominfo = false; znak=""};
		if (atominfo) {
			if (matoperator(mmup)) {znak=")"}
			if (matoperator(mmdn)) {izraz += "(" + mm + znak}
			else if (mmdn=="(") {izraz += mm + znak}
			else if (mmdn=="[") {izraz += mm + znak}
			else if (slovo(mm)) {izraz += "+" + mm + znak}
			else if (BrojAtoma(mmdn)) {izraz += mm + znak}
			else if (BrojAtoma(mm)) {izraz += "*" + mm + znak}
			else {izraz += mm + znak}
		}
		else {izraz += mm}
	}
	odgovor = eval(izraz);
	return odgovor
 }
}


function slovo(znak) {
	var slovo="(ABCDEFGHIKLMNOPRSTUVWXYZ";
	for (var i=0; i<slovo.length; i++)
		if (znak == slovo.charAt(i)) {return true} {return false}
}


function matoperator(znak) {
	var matoperator="*/+-";
	for (var i=0; i<matoperator.length; i++)
		if (znak == matoperator.charAt(i)) {return true}
		if (znak == "") {return true}
		if (znak == null) {return true}
	return false
}

function operator(znak) {
	var matoperator="*/+-";
	for (var i=0; i<matoperator.length; i++)
		if (znak == matoperator.charAt(i)) {return true}
	return false
}

function ubacirezultat(znak) {
	var ubacirezultat="*/+";
	for (var i=0; i<ubacirezultat.length; i++)
		if (znak == ubacirezultat.charAt(i)) {return true}
	return false
}

function BrojAtoma(znak)
{	var atom = "1234567890";
	for (var i=0; i<atom.length; i++)
		if (znak == atom.charAt(i)) {return true} {return false}
}


function Slika(adresa) {
	window.opener.location=adresa
}


function MenuBotun(adresa) {
	if (MenuWin.open) {
		MenuWin.document.daljinski.elementi.focus()
	}
	else {
		MenuWin = window.open(abc + adresa, "_blank", "width=110,height=270,toolbar=0,directories=0,resizable=1,scrollbars=0"); 
		MenuWin.creator = self;
		MenuOpen = 1
	}
}


function CalcBotun(adresa) {
	if (CalcWin.open) {
		CalcWin.document.racunalo.zadatak.focus()
	}
	else {
		CalcWin = window.open(abc + adresa, "_blank", "width=308,height=425,toolbar=0,directories=0,resizable=1,scrollbars=0");
		CalcWin.creator = self;
		CalcOpen = 1
	}
}


function NoviElement(noviznak) {
	var greska = 0;
	noviznak = noviznak.toLowerCase()

if (noviznak == "h" || noviznak == "hydrogen" || noviznak == "1") {element="h"}
else if (noviznak == "he" || noviznak == "helium" || noviznak == "2") {element="he"}
else if (noviznak == "li" || noviznak == "lithium" || noviznak == "3") {element="li"}
else if (noviznak == "be" || noviznak == "beryllium" || noviznak == "4") {element="be"}
else if (noviznak == "b" || noviznak == "boron" || noviznak == "5") {element="b"}
else if (noviznak == "c" || noviznak == "carbon" || noviznak == "6") {element="c"}
else if (noviznak == "n" || noviznak == "nitrogen" || noviznak == "7") {element="n"}
else if (noviznak == "o" || noviznak == "oxygen" || noviznak == "8") {element="o"}
else if (noviznak == "f" || noviznak == "fluorine" || noviznak == "9") {element="f"}
else if (noviznak == "ne" || noviznak == "neon" || noviznak == "10") {element="ne"}
else if (noviznak == "na" || noviznak == "sodium" || noviznak == "11") {element="na"}
else if (noviznak == "mg" || noviznak == "magnesium" || noviznak == "12") {element="mg"}
else if (noviznak == "al" || noviznak == "aluminium" || noviznak == "13") {element="al"}
else if (noviznak == "si" || noviznak == "silicon" || noviznak == "14") {element="si"}
else if (noviznak == "p" || noviznak == "phosphorus" || noviznak == "15") {element="p"}
else if (noviznak == "s" || noviznak == "sulfur" || noviznak == "16") {element="s"}
else if (noviznak == "cl" || noviznak == "chlorine" || noviznak == "17") {element="cl"}
else if (noviznak == "ar" || noviznak == "argon" || noviznak == "18") {element="ar"}
else if (noviznak == "k" || noviznak == "potassium" || noviznak == "19") {element="k"}
else if (noviznak == "ca" || noviznak == "calcium" || noviznak == "20") {element="ca"}
else if (noviznak == "sc" || noviznak == "scandium" || noviznak == "21") {element="sc"}
else if (noviznak == "ti" || noviznak == "titanium" || noviznak == "22") {element="ti"}
else if (noviznak == "v" || noviznak == "vanadium" || noviznak == "23") {element="v"}
else if (noviznak == "cr" || noviznak == "chromium" || noviznak == "24") {element="cr"}
else if (noviznak == "mn" || noviznak == "manganese" || noviznak == "25") {element="mn"}
else if (noviznak == "fe" || noviznak == "iron" || noviznak == "26") {element="fe"}
else if (noviznak == "co" || noviznak == "cobalt" || noviznak == "27") {element="co"}
else if (noviznak == "ni" || noviznak == "nickel" || noviznak == "28") {element="ni"}
else if (noviznak == "cu" || noviznak == "copper" || noviznak == "29") {element="cu"}
else if (noviznak == "zn" || noviznak == "zinc" || noviznak == "30") {element="zn"}
else if (noviznak == "ga" || noviznak == "gallium" || noviznak == "31") {element="ga"}
else if (noviznak == "ge" || noviznak == "germanium" || noviznak == "32") {element="ge"}
else if (noviznak == "as" || noviznak == "arsenic" || noviznak == "33") {element="as"}
else if (noviznak == "se" || noviznak == "selenium" || noviznak == "34") {element="se"}
else if (noviznak == "br" || noviznak == "bromine" || noviznak == "35") {element="br"}
else if (noviznak == "kr" || noviznak == "krypton" || noviznak == "36") {element="kr"}
else if (noviznak == "rb" || noviznak == "rubidium" || noviznak == "37") {element="rb"}
else if (noviznak == "sr" || noviznak == "strontium" || noviznak == "38") {element="sr"}
else if (noviznak == "y" || noviznak == "yttrium" || noviznak == "39") {element="y"}
else if (noviznak == "zr" || noviznak == "zirconium" || noviznak == "40") {element="zr"}
else if (noviznak == "nb" || noviznak == "niobium" || noviznak == "41") {element="nb"}
else if (noviznak == "mo" || noviznak == "molybdenum" || noviznak == "42") {element="mo"}
else if (noviznak == "tc" || noviznak == "technetium" || noviznak == "43") {element="tc"}
else if (noviznak == "ru" || noviznak == "ruthenium" || noviznak == "44") {element="ru"}
else if (noviznak == "rh" || noviznak == "rhodium" || noviznak == "45") {element="rh"}
else if (noviznak == "pd" || noviznak == "palladium" || noviznak == "46") {element="pd"}
else if (noviznak == "ag" || noviznak == "silver" || noviznak == "47") {element="ag"}
else if (noviznak == "cd" || noviznak == "cadmium" || noviznak == "48") {element="cd"}
else if (noviznak == "in" || noviznak == "indium" || noviznak == "49") {element="in"}
else if (noviznak == "sn" || noviznak == "tin" || noviznak == "50") {element="sn"}
else if (noviznak == "sb" || noviznak == "antimony" || noviznak == "51") {element="sb"}
else if (noviznak == "te" || noviznak == "tellurium" || noviznak == "52") {element="te"}
else if (noviznak == "i" || noviznak == "iodine" || noviznak == "53") {element="i"}
else if (noviznak == "xe" || noviznak == "xenon" || noviznak == "54") {element="xe"}
else if (noviznak == "cs" || noviznak == "cesium" || noviznak == "55") {element="cs"}
else if (noviznak == "ba" || noviznak == "barium" || noviznak == "56") {element="ba"}
else if (noviznak == "la" || noviznak == "lanthanum" || noviznak == "57") {element="la"}
else if (noviznak == "ce" || noviznak == "cerium" || noviznak == "58") {element="ce"}
else if (noviznak == "pr" || noviznak == "praseodymium" || noviznak == "59") {element="pr"}
else if (noviznak == "nd" || noviznak == "neodymium" || noviznak == "60") {element="nd"}
else if (noviznak == "pm" || noviznak == "promethium" || noviznak == "61") {element="pm"}
else if (noviznak == "sm" || noviznak == "samarium" || noviznak == "62") {element="sm"}
else if (noviznak == "eu" || noviznak == "europium" || noviznak == "63") {element="eu"}
else if (noviznak == "gd" || noviznak == "gadolinium" || noviznak == "64") {element="gd"}
else if (noviznak == "tb" || noviznak == "terbium" || noviznak == "65") {element="tb"}
else if (noviznak == "dy" || noviznak == "dysprosium" || noviznak == "66") {element="dy"}
else if (noviznak == "ho" || noviznak == "holmium" || noviznak == "67") {element="ho"}
else if (noviznak == "er" || noviznak == "erbium" || noviznak == "68") {element="er"}
else if (noviznak == "tm" || noviznak == "thulium" || noviznak == "69") {element="tm"}
else if (noviznak == "yb" || noviznak == "ytterbium" || noviznak == "70") {element="yb"}
else if (noviznak == "lu" || noviznak == "lutetium" || noviznak == "71") {element="lu"}
else if (noviznak == "hf" || noviznak == "hafnium" || noviznak == "72") {element="hf"}
else if (noviznak == "ta" || noviznak == "tantalum" || noviznak == "73") {element="ta"}
else if (noviznak == "w" || noviznak == "tungsten" || noviznak == "74") {element="w"}
else if (noviznak == "re" || noviznak == "rhenium" || noviznak == "75") {element="re"}
else if (noviznak == "os" || noviznak == "osmium" || noviznak == "76") {element="os"}
else if (noviznak == "ir" || noviznak == "iridium" || noviznak == "77") {element="ir"}
else if (noviznak == "pt" || noviznak == "platinum" || noviznak == "78") {element="pt"}
else if (noviznak == "au" || noviznak == "gold" || noviznak == "79") {element="au"}
else if (noviznak == "hg" || noviznak == "mercury" || noviznak == "80") {element="hg"}
else if (noviznak == "tl" || noviznak == "thallium" || noviznak == "81") {element="tl"}
else if (noviznak == "pb" || noviznak == "lead" || noviznak == "82") {element="pb"}
else if (noviznak == "bi" || noviznak == "bismuth" || noviznak == "83") {element="bi"}
else if (noviznak == "po" || noviznak == "polonium" || noviznak == "84") {element="po"}
else if (noviznak == "at" || noviznak == "astatine" || noviznak == "85") {element="at"}
else if (noviznak == "rn" || noviznak == "radon" || noviznak == "86") {element="rn"}
else if (noviznak == "fr" || noviznak == "francium" || noviznak == "87") {element="fr"}
else if (noviznak == "ra" || noviznak == "radium" || noviznak == "88") {element="ra"}
else if (noviznak == "ac" || noviznak == "actinium" || noviznak == "89") {element="ac"}
else if (noviznak == "th" || noviznak == "thorium" || noviznak == "90") {element="th"}
else if (noviznak == "pa" || noviznak == "protactinium" || noviznak == "91") {element="pa"}
else if (noviznak == "u" || noviznak == "uranium" || noviznak == "92") {element="u"}
else if (noviznak == "np" || noviznak == "neptunium" || noviznak == "93") {element="np"}
else if (noviznak == "pu" || noviznak == "plutonium" || noviznak == "94") {element="pu"}
else if (noviznak == "am" || noviznak == "americium" || noviznak == "95") {element="am"}
else if (noviznak == "cm" || noviznak == "curium" || noviznak == "96") {element="cm"}
else if (noviznak == "bk" || noviznak == "berkelium" || noviznak == "97") {element="bk"}
else if (noviznak == "cf" || noviznak == "californium" || noviznak == "98") {element="cf"}
else if (noviznak == "es" || noviznak == "einsteinium" || noviznak == "99") {element="es"}
else if (noviznak == "fm" || noviznak == "fermium" || noviznak == "100") {element="fm"}
else if (noviznak == "md" || noviznak == "mendelevium" || noviznak == "101") {element="md"}
else if (noviznak == "no" || noviznak == "nobelium" || noviznak == "102") {element="no"}
else if (noviznak == "lr" || noviznak == "lawrencium" || noviznak == "103") {element="lr"}
else if (noviznak == "rf" || noviznak == "rutherfordium" || noviznak == "104") {element="rf"}
else if (noviznak == "db" || noviznak == "dubnium" || noviznak == "105") {element="db"}
else if (noviznak == "sg" || noviznak == "seaborgium" || noviznak == "106") {element="sg"}
else if (noviznak == "bh" || noviznak == "bohrium" || noviznak == "107") {element="bh"}
else if (noviznak == "hs" || noviznak == "hassium" || noviznak == "108") {element="hs"}
else if (noviznak == "mt" || noviznak == "meitnerium" || noviznak == "109") {element="mt"}
else if (noviznak == "uun" || noviznak == "ununnilium" || noviznak == "110") {element="uun"}
else if (noviznak == "uuu" || noviznak == "unununium" || noviznak == "111") {element="uuu"}
else if (noviznak == "uub" || noviznak == "ununbium" || noviznak == "112") {element="uub"}
else if (noviznak == "uuq" || noviznak == "ununquadium" || noviznak == "114") {element="uuq"}
else if (noviznak == "") {greska=1}
else {
	window.alert("Input ELEMENT SYMBOL, ATOMIC NUMBER or NAMES OF ELEMENTS!");
	greska = 1
}

	if (greska == 0) {MainWin = window.open(abc + element + ".html", "_self")}
}


//Eni Generalic, Split, Create: 1999/10/14; Update: 2001/12/11
//Atomic Weights of the Elements 1999, Pure & Appl. Chem., Vol. 73, No. 4, 667-683 (2001)

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<td align="center">
<input height="24" width="72" type="button" name="select" value="Select All" title="Select All" onclick="document.racunalo.notes.focus(); document.racunalo.notes.select()" style="background: rgb(238, 238, 238) none repeat scroll 0%; -moz-background-clip: initial; -moz-background-inline-policy: initial; -moz-background-origin: initial; font-size: 10pt; height: 24px; width: 75px;">
</td>
<td align="center">
<input height="24" width="72" type="reset" name="reset" value="Reset" title="Reset Form" onclick="document.racunalo.zadatak.focus()" style="background: rgb(238, 238, 238) none repeat scroll 0%; -moz-background-clip: initial; -moz-background-inline-policy: initial; -moz-background-origin: initial; font-size: 10pt; height: 24px; width: 75px;">
</td>
</tr>

</tbody></table>
</td>
</tr>

</tbody></table>
</center>

</form>
</body>
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