function calc_total()
		{
			document.Kalkulator.zakat.value =
			parseFloat(document.Kalkulator.z1.value) +
			parseFloat(document.Kalkulator.z2.value) +
			parseFloat(document.Kalkulator.z3.value);
			document.Kalkulator.disp_zakat.value = document.Kalkulator.zakat.value;
		}
	
	function calc_nisab()
		{
			var emas = parseInt(document.Kalkulator.fz.value);
			var nisab = emas * 85;
			document.Kalkulator.nisab.value = nisab;
		}
	
	function calc_simpanan()
		{
			document.Kalkulator.ff.value = 
			parseInt(document.Kalkulator.fa.value) +
			parseInt(document.Kalkulator.fb.value) +
			parseInt(document.Kalkulator.fc.value) +
			parseInt(document.Kalkulator.fd.value) +
			parseInt(document.Kalkulator.fe.value);
	
			var zakatable =
							parseInt(document.Kalkulator.ff.value) -
							parseInt(document.Kalkulator.fg.value);
					
			calc_nisab();
			var nisab = document.Kalkulator.nisab.value;
		
			if (zakatable < nisab){
									zakatable = 0;
								  }
						document.Kalkulator.fh.value = zakatable;
						var zakat = 0.025 * zakatable;
						document.Kalkulator.z1.value = zakat;
						calc_total();
								  }
						
	function calc_profesi()
		{
			var pendapatan =
							(12 * parseInt(document.Kalkulator.fj.value)) +
							parseInt(document.Kalkulator.fk.value);
			var pengeluaran =
							(12 * parseInt(document.Kalkulator.fm.value)) +
							parseInt(document.Kalkulator.fn.value);
			var zakatable = pendapatan - pengeluaran;
							document.Kalkulator.fl.value = pendapatan;
							document.Kalkulator.fo.value = pengeluaran;
					
			calc_nisab();
			var nisab = document.Kalkulator.nisab.value;
			
			if (zakatable < nisab){
									zakatable = 0;
								  }
						document.Kalkulator.fp.value = zakatable;
						var zakat = 0.025 * zakatable;
						document.Kalkulator.z2.value = zakat;
			calc_total();
						}
					
	function calc_usaha()
						{
							var zakatable =
											0.01 * parseFloat(document.Kalkulator.ft.value) *
											(parseInt(document.Kalkulator.fr.value) -
											parseInt(document.Kalkulator.fs.value));
											document.Kalkulator.fu.value = zakatable;
			calc_nisab();
			var nisab = document.Kalkulator.nisab.value;

			if (zakatable < nisab){
									zakatable = 0;
								  }
						document.Kalkulator.fv.value = zakatable;
						var zakat = 0.025 * zakatable;
						document.Kalkulator.z3.value = zakat;
			calc_total();
						}