// JavaScript Document var amount, apr, n, payment, npy, tablebuilt=false; function calculate(){ var d = document.f; amount = d.amount.value; apr = d.apr.value; n = d.n.value; npy = d.npy.value; if( (amount!='') && (n!='') && (apr!='') && (npy!='') ){ tmp = Math.pow((1+(apr/100/npy)), (n*npy)); payment = (amount*tmp*(apr/100/npy))/(tmp-1); if((!isNaN(payment))&&(payment!=Number.POSITIVE_INFINITY)&&(payment!=Number.NEGATIVE_INFINITY)){ d.payment.value = round(payment); d.totpaid.value = round(payment*n*npy); d.intpaid.value = round((payment*n*npy)-amount); d.payment.value = formatNumber(d.payment.value, 2); d.payment.value = formatPers(d.payment.value, 2); d.totpaid.value = formatNumber(d.totpaid.value, 2); d.totpaid.value = formatPers(d.totpaid.value, 2); d.intpaid.value = formatNumber(d.intpaid.value, 2); d.intpaid.value = formatPers(d.intpaid.value, 2); }else alert('Attenzione:\nalcuni campi contengono dati\nche non possono essere usati per il\ncalcolo.'); }else alert('Attenzione:\nnon sono stati inseriti tutti i dati richiesti.'); } function round(val){ tmp = Math.round(val*100)/100+''; if (tmp.indexOf('.')==-1) tmp+=',00'; else if (tmp.length-tmp.indexOf(',') == 2) tmp+='0'; return tmp; } function resetall(){ var d = document.f; /*d.amount.value = ''; d.apr.value = ''; d.n.value = ''; d.npy.value = 12; d.payment.value = ''; d.totpaid.value = ''; d.intpaid.value = ''; d.amount.focus(); */ d.amount.value = '200000'; d.apr.value = '3'; d.n.value = '6'; d.npy.value = 6; d.payment.value = ''; d.totpaid.value = ''; d.intpaid.value = ''; d.amount.focus(); } function buildtable(){ tablebuilt = true; /*txt = 'Esploso Pagamenti
'; txt += '

'; txt += ''; txt += ''; */ txt = 'Esploso Pagamenti'+ '
'; txt += '

'; txt += '
Numero
Scadenza		Importo
Rata		InteresseCapitaleResiduo
'; txt += ''+ ''+ ''+ ''+ ''+ ''; amount = eval(amount); for(i = 1; i <= n*npy; i++){ tbldata = '' + tbldata + i + ':' + tbldata + "\u20AC" + formatNumberMio(round(payment), 2) + '' + tbldata + "\u20AC" + formatNumberMio(round(interest), 2) + '' + tbldata + "\u20AC" + formatNumberMio(round(principle), 2) + '' + tbldata + "\u20AC" + formatNumberMio(round(amount), 2) + ''; } txt += '
Numero
Scadenza		Importo
Rata		InteresseCapitaleResiduo
'; interest = amount*apr/npy/100; amount += interest; principle = payment-interest; amount -= payment; txt += '


'; var psch = window.open('', 'viewsch' ,'top=0,left=0,toolbar=no,scrollbars=yes,resizable=yes,width=500,height=450,menubar=no,status=no'); psch.document.write(txt); } if (document.f != undefined) { window.onload = function(){ document.f.amount.focus(); } } function formatNumberMio (obj, decimal) { anynum = obj; divider =10; switch(decimal) { case 0: divider =1; break; case 1: divider =10; break; case 2: divider =100; break; default: //for 3 decimal places divider =1000; } workNum = Math.abs((Math.round(anynum*divider)/divider)); if (isNaN(workNum)) { workStr = "" + anynum; } else { workStr = "" + workNum; } if (workStr.indexOf(".") == -1 && workStr.indexOf(",") == -1) { workStr += "." } //Aggiunto da me per avere la virgola NO coome separatore di migliaia ma come separatore di decimali workStr = workStr.replace(/\./, ","); dStr = workStr.substr(0, workStr.indexOf(",")); dNum = dStr-0 pStr = workStr.substr(workStr.indexOf(",")) while (pStr.length-1 < decimal){ pStr += "0" } if(pStr == '.') pStr = ''; if (dNum >= 1000) { dLen = dStr.length dStr = parseInt("" + (dNum/1000)) + "." + dStr.substring(dLen-3,dLen) } if (dNum >= 1000000) { dLen = dStr.length dStr = parseInt("" + (dNum/1000000)) + "." + dStr.substring(dLen-7,dLen) } retval = dStr + pStr if (anynum<0) {retval="("+retval+")";} return retval; }