function headRow(){
var hr=[];
hr.push('');
hr.push('| Tax Bracket | ');
hr.push('Tax Rate | ');
hr.push('Tax | ');
hr.push('
');
return hr.join('');
}
function totalRows(tIncome,tTax){
tNet = tIncome-tTax;
hr=[];
hr.push('');
hr.push(' | Total Tax | ');
hr.push(' $');
hr.push(currency(tTax));
hr.push(' | ');
hr.push('
');
hr.push('');
hr.push(' | | ');
hr.push('
');
hr.push('');
hr.push(' | Net Income | ');
hr.push(' | ');
hr.push('
');
hr.push('');
hr.push(' | Per Annum : | ');
hr.push(' $');
hr.push(currency(tNet));
hr.push(' | ');
hr.push('
');
hr.push('');
hr.push(' | Per Week : | ');
hr.push(' $');
hr.push(currency(tNet/52));
hr.push(' | ');
hr.push('
');
hr.push('');
hr.push(' | Per Fortnight : | ');
hr.push(' $');
hr.push(currency(tNet/26));
hr.push(' | ');
hr.push('
');
hr.push('');
hr.push(' | Per Month : | ');
hr.push(' $');
hr.push(currency(tNet/12));
hr.push(' | ');
hr.push('
');
return hr.join('');
}
function detailRow(tFrom,tTo,tRate,tTax){
var hr=[];
hr.push('');
hr.push('| ');
hr.push(currency(tFrom));
hr.push(' | ');
hr.push(' - | ');
hr.push('');
hr.push(currency(tTo));
hr.push(' | ');
hr.push('');
hr.push(tRate);
hr.push('% | ');
hr.push('');
hr.push(currency(tTax));
hr.push(' | ');
hr.push('
');
return hr.join('');
}
function currency(tAmt){
var ret = tAmt.toFixed(0).toString();
var retlen = ret.length-3;
for (var i = 0; i < Math.floor((ret.length-(1+i))/3); i++)
ret = ret.substring(0,ret.length-(4*i+3))+','+ret.substring(ret.length-(4*i+3));
return ret;
}
function CalcInc(fm) {
var income = /^[1-9]+[0-9]+$/;
var rates=[];
rates.push({"From":1,"To":6000,"Rate":0});
rates.push({"From":6001,"To":34000,"Rate":15});
rates.push({"From":34001,"To":80000,"Rate":30});
rates.push({"From":80001,"To":180000,"Rate":40});
rates.push({"From":180001,"To":10000000,"Rate":45});
var gS; //gross salary variable
var mgnAmount=0, taxSubTotal = 0, taxTotal = 0;
if ( !income.test(fm.gs.value) || fm.gs.value <= 0 ) {
alert("Please enter a valid value for your income. Please note :\n\n1. Only enter whole dollar values.\n2. Do not use commas or fullstops.");
fm.gs.select();
return false;
} else {
gS = eval(fm.gs.value); // assign gross income
}
var out=[''];
out.push(headRow());
var remainder = gS;
for(var i=0;i 0){
if (gS <=rates[i].To){
bracket =remainder;
}
else{
bracket = Math.min(remainder,rates[i].To-(rates[i].From-1));
}
bracketTax = bracket*rates[i].Rate/100;
out.push(detailRow(rates[i].From,Math.min(gS,rates[i].To),rates[i].Rate,bracketTax));
remainder -= bracket;
taxTotal+=bracketTax;
}
}
out.push(totalRows(gS,taxTotal));
out.push('
');
document.getElementById('results').innerHTML=out.join('');
}