JS digital amount converted amount in words

/ ** digital conversion the amount of capital (can handle integer, decimal, negative) * /
function smalltoBIG (n-)
{
var fraction = [ 'angles',' partial '];
var = digit for [' zero ',' One ',' II ',' three ',' store ',' Wu ',' LU ',' qi ',' split ',' ND '];
var Unit = [[' element, 'the' ',' one hundred million '], [ ',' pick up ',' Bai ',' thousand ']];
var = n-head <0?' under ':' ';
n-the Math.abs = (n-);

    var s = '';    
  
    for (var i = 0; i < fraction.length; i++) { s += (digit[Math.floor(n * 10 * Math.pow(10, i)) % 10] + fraction[i]).replace(/零./, ''); } s = s || '整'; n = Math.floor(n); for (var i = 0; i < unit[0].length && n > 0; i++) { var p = ''; for (var j = 0; j < unit[1].length && n > 0; j++) { p = digit[n % 10] + unit[1][j] + p; n = Math.floor(n / 10); } s = p.replace(/(零.)*零$/, '').replace(/^$/, '零') + unit[0][i] + s; } return head + s.replace(/(零.)*零元/, '元').replace(/(零.)+/g, '零').replace(/^整$/, '零元整'); }