// <!-- Hide from older browsers

   // Original JavaScript code by Duncan Crombie: dcrombie@chirp.com.au
   // Please acknowledge use of this code by including this header.

   // CONSTANTS
  var separator = ",";  // use comma as 000's separator
  var decpoint = ".";  // use period as decimal point
  var percent = "%";
  var currency = "$";  // use dollar sign for currency
 
  function num_format(number) {  // use: formatNumber(number, "format")
  	
	 var format = "$,##0.00";

    if (number - 0 != number) return null;  // if number is NaN return null
    var useSeparator = format.indexOf(separator) != -1;  // use separators in number
    var usePercent = format.indexOf(percent) != -1;  // convert output to percentage
    var useCurrency = format.indexOf(currency) != -1;  // use currency format
    var isNegative = (number < 0);
    number = Math.abs (number);
    if (usePercent) number *= 100;
    format = strip(format, separator + percent + currency);  // remove key characters
    number = "" + number;  // convert number input to string

     // split input value into LHS and RHS using decpoint as divider
    var dec = number.indexOf(decpoint) != -1;
    var nleftEnd = (dec) ? number.substring(0, number.indexOf(".")) : number;
    var nrightEnd = (dec) ? number.substring(number.indexOf(".") + 1) : "";

     // split format string into LHS and RHS using decpoint as divider
    dec = format.indexOf(decpoint) != -1;
    var sleftEnd = (dec) ? format.substring(0, format.indexOf(".")) : format;
    var srightEnd = (dec) ? format.substring(format.indexOf(".") + 1) : "";

     // adjust decimal places by cropping or adding zeros to LHS of number
    if (srightEnd.length < nrightEnd.length) {
      var nextChar = nrightEnd.charAt(srightEnd.length) - 0;
      nrightEnd = nrightEnd.substring(0, srightEnd.length);
      if (nextChar >= 5) nrightEnd = "" + ((nrightEnd - 0) + 1);  // round up

 // patch provided by Patti Marcoux 1999/08/06
      while (srightEnd.length > nrightEnd.length) {
        nrightEnd = "0" + nrightEnd;
      }

      if (srightEnd.length < nrightEnd.length) {
        nrightEnd = nrightEnd.substring(1);
        nleftEnd = (nleftEnd - 0) + 1;
      }
    } else {
      for (var i=nrightEnd.length; srightEnd.length > nrightEnd.length; i++) {
        if (srightEnd.charAt(i) == "0") nrightEnd += "0";  // append zero to RHS of number
        else break;
      }
    }

     // adjust leading zeros
    sleftEnd = strip(sleftEnd, "#");  // remove hashes from LHS of format
    while (sleftEnd.length > nleftEnd.length) {
      nleftEnd = "0" + nleftEnd;  // prepend zero to LHS of number
    }

    if (useSeparator) nleftEnd = separate(nleftEnd, separator);  // add separator
    var output = nleftEnd + ((nrightEnd != "") ? "." + nrightEnd : "");  // combine parts
    output = ((useCurrency) ? currency : "") + output + ((usePercent) ? percent : "");
    if (isNegative) {
      // patch suggested by Tom Denn 25/4/2001
      output = (useCurrency) ? "(" + output + ")" : "-" + output;
    }
    return output;
  }

  function strip(input, chars) {  // strip all characters in 'chars' from input
    var output = "";  // initialise output string
    for (var i=0; i < input.length; i++)
      if (chars.indexOf(input.charAt(i)) == -1)
        output += input.charAt(i);
    return output;
  }

  function separate(input, separator) {  // format input using 'separator' to mark 000's
    input = "" + input;
    var output = "";  // initialise output string
    for (var i=0; i < input.length; i++) {
      if (i != 0 && (input.length - i) % 3 == 0) output += separator;
      output += input.charAt(i);
    }
    return output;
  }

   // Stop hiding -->

function calcit()
{
	var CalcTax = document.getElementById("CalcTax");

 if (CalcTax.EquipCost.value.length == 0)
 { alert('You must enter an Equipment Cost');
  window.event.returnValue = false;
  document.CalcTax.EquipCost.focus()
  return;
 }

   //  check for valid numeric strings	z
   var strValidChars = "0123456789.-";
   var strChar;
   var blnResult = true;

   //  test strString consists of valid characters listed above
   for (i = 0; i < CalcTax.EquipCost.value.length && blnResult == true; i++)
      {
      strChar = CalcTax.EquipCost.value.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
	  
   if (blnResult == false) 
      {
      alert("Please enter a numerical value.");
      }
 

	  
 if (CalcTax.EquipCost.value <= 250000)
 {
  Bline = CalcTax.EquipCost.value;

  //Zline179taxsvgs = (Bline)*.35;

  // figure 50% Bonus Depreciation of amount  if exceeding $250,000
  BonDep50Percent = 0

  Dline = (CalcTax.EquipCost.value - Bline) / 5;

  Eline = parseInt(Bline*100)/100 + parseInt(Dline*100)/100;
  Fline = (Eline)*.35;
  
  CalcTax.Bline.value = num_format(Bline);

  CalcTax.Dline.value = num_format(Dline);
  CalcTax.Eline.value = num_format(Eline);
  CalcTax.Fline.value = num_format(Fline);
  //CalcTax.Zline179taxsvgs.value = num_format(Zline179taxsvgs);
  CalcTax.BonDep50Percent.value = num_format(BonDep50Percent);  
 }
	
 if (CalcTax.EquipCost.value >= 250001)
 {
  Bline2 = 250000;
  
  //Zline179taxsvgs = (Bline2)*.35;
  // figure 50% Bonus Depreciation of amount exceeding $250,000 capping at $275,000
  BonDep50Percent = 0;
  

  
  //Dline2 = (CalcTax.EquipCost.value - Bline2) / 5;

  //Eline2 = parseInt(Bline2*100)/100 + parseInt(Dline2*100)/100;
  //Fline2 = (Eline2 + BonDep50Percent)*.35;
  
  CalcTax.Bline.value = num_format(Bline2);

  //CalcTax.Dline.value = num_format(Dline2);
  //CalcTax.Eline.value = num_format(Eline2);
  //CalcTax.Fline.value = num_format(Fline2);
  //CalcTax.Zline179taxsvgs.value = num_format(Zline179taxsvgs);
  CalcTax.BonDep50Percent.value = num_format(BonDep50Percent);
  //CalcTax.Norm1stYrDep.value = num_format(Norm1stYrDep);
 }
 
 if (CalcTax.EquipCost.value >= 275001)
 {
  Bline3 = 250000;
  
  //Zline179taxsvgs = (Bline2)*.35;
  // figure 50% Bonus Depreciation of amount exceeding $250,000 capping at $275,000
  BonDep50Percent = 0;
  Norm1stYrDeprec = ((CalcTax.EquipCost.value - BonDep50Percent)-Bline3)/5;

  
  Dline3 = (Norm1stYrDeprec) ;

  Eline3 = parseInt(Bline3*100)/100 + parseInt(Norm1stYrDeprec*100)/100 + parseInt(BonDep50Percent*100)/100;;
  Fline3 = (Eline3)*.35;
  
  CalcTax.Bline.value = num_format(Bline3);

  CalcTax.Dline.value = num_format(Dline3);
  CalcTax.Eline.value = num_format(Eline3);
  CalcTax.Fline.value = num_format(Fline3);
  //CalcTax.Zline179taxsvgs.value = num_format(Zline179taxsvgs);
  CalcTax.BonDep50Percent.value = num_format(BonDep50Percent);
  //CalcTax.Norm1stYrDep.value = num_format(Norm1stYrDep);
 }
 
 // if (CalcTax.EquipCost.value >= 800000)
// {
//  Bline3 = 105000-(CalcTax.EquipCost.value - 800000);

  
//  Dline3 = (CalcTax.EquipCost.value - Bline3) / 5;
  
//  Eline3 = parseInt(Bline3*100)/100 + parseInt(Dline3*100)/100;
//  Fline3 = (Eline3)*.35;

//  CalcTax.Bline.value = num_format(Bline3);

//  CalcTax.Dline.value = num_format(Dline3);
//  CalcTax.Eline.value = num_format(Eline3);
//  CalcTax.Fline.value = num_format(Fline3);

// }
 
if (CalcTax.EquipCost.value > 800000)
 {
  Bline4 = 0;

  
 Dline4 = (CalcTax.EquipCost.value - Bline4) / 5;
  
 Eline4 = parseInt(Bline4) + parseInt(Dline4);
  Fline4 = (Eline4)*.35;
  
  CalcTax.Bline.value = num_format(Bline4);

 CalcTax.Dline.value = num_format(Dline4);
  CalcTax.Eline.value = num_format(Eline4);
  CalcTax.Fline.value = num_format(Fline4);
 }

}
function changethenumber()
{
 if (CalcTax.EquipCost.value.length == 0)
 {
 CalcTax.EquipCost.value = 0
 }
CalcTax.EquipCost.value = (parseInt(CalcTax.EquipCost.value)) + (2500);
CalcTax.Bline.value = '';

CalcTax.Dline.value = '';
CalcTax.Eline.value = '';
CalcTax.Fline.value = '';

}
function subtractthenumber()
{
 if (CalcTax.EquipCost.value.length == 0)
 {
 CalcTax.EquipCost.value = 0
 }
CalcTax.EquipCost.value = (CalcTax.EquipCost.value) - (2500);
CalcTax.Bline.value = '';

CalcTax.Dline.value = '';
CalcTax.Eline.value = '';
CalcTax.Fline.value = '';
}