/*
Myers
Copyright 2010
8-18-10
tjm
*/

/*
==============================
ROI calc functions
==============================
*/

function chkFld(objFld) {
  if (objFld.value == "") {
    alert('Please enter a value for Average Commissions/Loan');
    objFld.value = "";
    objFld.focus();
    return false;
  }
  var intTempVal = parseFloat(objFld.value) || 0;
  if (intTempVal <= 0) {
    alert('Commissions/Loan should be a number greater than 0');
    objFld.value = "";
    objFld.focus();
    return false;
  }
  objFld.value = intTempVal;
  sumLoansLost(objFld,'Y');
  sumAddnlLoans(objFld);
  return true;
}

function sumLoansLost(objFld, blnGlobal) {
  var objForm = document.frmCalc;
  var blnOverride = blnGlobal || 'N';

  var intTempVal = parseFloat(objFld.value) || 0;
  if (intTempVal < 0 && blnOverride == 'N') {
    alert('Please enter a valid value.');
    objFld.focus();
    return false;
  } else {
    objFld.value = intTempVal;
  }
  var intBaseComm = parseInt(objForm.avg_comm.value) || 0;
  var intVmTag = parseFloat(objForm.vm_tag.value) || 0;
  var intNoApt = parseFloat(objForm.no_apt.value) || 0;
  var intNotOpen = parseFloat(objForm.not_open.value) || 0;
  var intNoTime = parseFloat(objForm.no_time.value) || 0;

  objForm.num_lostloans.value = intVmTag + intNoApt + intNotOpen + intNoTime;

  var intCommLost;
  intCommLost = intBaseComm * objForm.num_lostloans.value;
  objForm.cmsn_lost.value = Math.round(parseFloat(intCommLost));
  var intPerSaved = parseFloat(objForm.per_saved.value) || 0;
  objForm.rev_recap.value = Math.round(intCommLost * (intPerSaved/100));

  sumAllValues();
  return true;
}


function sumAddnlLoans(objFld) {
  var objForm = document.frmCalc;
  var intTempVal = parseFloat(objFld.value) || 0;
  if (intTempVal < 0) {
    alert('Please enter a valid value.');
    objFld.focus();
    return;
  } else {
    objFld.value = intTempVal;
  }
  
  var intAddWebAddr = parseFloat(objForm.add_webaddr.value) || 0;
  var intTrainRefs = parseFloat(objForm.train_refs.value) || 0;
  var intGenReloc = parseFloat(objForm.gen_reloc.value) || 0;
  var intBusState = parseFloat(objForm.bus_state.value) || 0;
  var intBusOtherStates = parseFloat(objForm.bus_other_states.value) || 0;

  var intBaseComm = parseFloat(objForm.avg_comm.value) || 0;
  var intSumAddnlLoans = intAddWebAddr +  intTrainRefs + intGenReloc + intBusState + intBusOtherStates;
  objForm.addnl_loans.value = intSumAddnlLoans;

  var intRevInc = intBaseComm * intSumAddnlLoans;
  objForm.rev_inc.value = Math.round(intRevInc);

  sumAllValues();
}


function sumOverhead(objFld) {
  var objForm = document.frmCalc;
  var intTempVal = parseFloat(objFld.value) || 0;
  if (intTempVal < 0) {
    alert('Please enter a valid value.');
    objFld.focus();
    return;
  } else {
    objFld.value = intTempVal;
  }

  var intRedRent = parseFloat(objForm.reduce_rent.value) || 0;
  var intRedStaff = parseFloat(objForm.reduce_staff.value) || 0;

  var intCostSavings = intRedRent + intRedStaff;
  objForm.cost_savings.value = Math.round(intCostSavings);
  
  sumAllValues();
}

function sumAllValues() {
  var objForm = document.frmCalc;
  var intRevInc = parseFloat(objForm.rev_inc.value) || 0;
  var intCostSavings = parseFloat(objForm.cost_savings.value) || 0;
  var intRevRecap = parseFloat(objForm.rev_recap.value) || 0;
  var intTotalRevInc = intCostSavings + intRevInc + intRevRecap;
  objForm.tot_rev_inc.value = Math.round(intTotalRevInc);
}