var NS4DOM = (document.layers) ? true:false;            // Netscape 4.xx browser
var IEDOM = (document.all) ? true:false;                // Internet Explorer browser
var W3CDOM = (document.getElementById) ? true:false;    // Netscape browser

var license = '<div align="justify"><font face="Arial, Helvetica, sans-serif" size="1">' +
  'This calculator is only to be used as a tool for exploring options concerning financing. Accuracy of the results is not guaranteed. The use of this calculator and the results of this calculator in no way signifies that you will be approved for a loan.' +
  '</font></div>';

js_version = 1.1;

function floor(number)
{
  return Math.floor(number*Math.pow(10,2))/Math.pow(10,2);
}
function dosum()
{
  var MI = document.mortform.IR.value / 1200;
  var base = 1;
  var mbase = 1 + MI;
  for (i=0; i<document.mortform.YR.value * 12; i++)
  {
    base = base * mbase
  }
  document.mortform.PI.value = floor(document.mortform.LA.value * MI / ( 1 - (1/base)))
  document.mortform.MT.value = floor(document.mortform.AT.value / 12)
  document.mortform.MI.value = floor(document.mortform.AI.value / 12)
  var dasum = document.mortform.LA.value * MI / ( 1 - (1/base)) +
  document.mortform.AT.value / 12 +
  document.mortform.AI.value / 12;
  document.mortform.MP.value = floor(dasum);
}