diff --git a/site/views/customers/receipt.ctp b/site/views/customers/receipt.ctp
index 6e6f41e..446aa40 100644
--- a/site/views/customers/receipt.ctp
+++ b/site/views/customers/receipt.ctp
@@ -48,24 +48,32 @@ function verifyRequest(formData, jqForm, options) {
     if (formData[i]['name'] == "data[Customer][id]" &&
 	!(formData[i]['value'] > 0)) {
       //$("#debug").append('<P>Missing Customer ID');
-      alert("Must select a customer first");
+      alert("Please select a customer first.");
       return false;
     }
 
     if (formData[i]['name'] == "data[Transaction][stamp]" &&
 	formData[i]['value'] == '') {
       //$("#debug").append('<P>Bad Stamp');
-      alert("Must enter a valid date stamp");
+      if (formData[i]['value'] != '')
+	alert(formData[i]['value'] + " is not valid date stamp.  Please correct it.");
+      else
+	alert("Please enter a valid date stamp first.");
       return false;
     }
 
     // Terrible way to accomplish this...
     for (var j = 0; j < 20; ++j) {
-      if (formData[i]['name'] == "data[Entry]["+j+"][amount]" &&
-	  !(formData[i]['value'] > 0)) {
+      if (formData[i]['name'] == "data[Entry]["+j+"][amount]") {
+	var val = formData[i]['value'].replace(/\$/,'');
 	//$("#debug").append('<P>Bad Amount');
-	alert("Must enter a valid amount");
-	return false;
+	if (!(val > 0)) {
+	  if (formData[i]['value'] == '')
+	    alert("Please enter an amount first.");
+	  else
+	    alert('"'+formData[i]['value']+'"' + " is not valid amount.  Please correct it.");
+	  return false;
+	}
       }
     }
 
diff --git a/site/views/leases/invoice.ctp b/site/views/leases/invoice.ctp
index ed3b6e7..e1c6e97 100644
--- a/site/views/leases/invoice.ctp
+++ b/site/views/leases/invoice.ctp
@@ -10,6 +10,7 @@ $customer = $lease['Customer'];
 if (isset($lease['Lease']))
   $lease = $lease['Lease'];
 
+//pr(compact('unit', 'customer', 'lease', 'movein'));
 
 /**********************************************************************
  **********************************************************************
@@ -62,19 +63,27 @@ function verifyRequest(formData, jqForm, options) {
     if (formData[i]['name'] == "data[Transaction][stamp]" &&
 	formData[i]['value'] == '') {
       //$("#debug").append('<P>Bad Stamp');
-      alert("Must enter a valid date stamp");
+      if (formData[i]['value'] != '')
+	alert(formData[i]['value'] + " is not valid date stamp.  Please correct it.");
+      else
+	alert("Please enter a valid date stamp first.");
       return false;
     }
 
     // Terrible way to accomplish this...
-/*     for (var j = 0; j < 20; ++j) { */
-/*       if (formData[i]['name'] == "data[Entry]["+j+"][amount]" && */
-/* 	  !(formData[i]['value'] > 0)) { */
-/* 	//$("#debug").append('<P>Bad Amount'); */
-/* 	alert("Must enter a valid amount"); */
-/* 	return false; */
-/*       } */
-/*     } */
+    for (var j = 0; j < 20; ++j) {
+      if (formData[i]['name'] == "data[Entry]["+j+"][amount]") {
+	var val = formData[i]['value'].replace(/\$/,'');
+	//$("#debug").append('<P>Bad Amount');
+	if (!(val > 0)) {
+	  if (formData[i]['value'] == '')
+	    alert("Please enter an amount for Charge #"+j+", or remove the Charge completely.");
+	  else
+	    alert('"'+formData[i]['value']+'"' + " is not a valid amount for Charge #"+j+".  Please correct it.");
+	  return false;
+	}
+      }
+    }
   }
 
   //$("#debug").append('OK');
@@ -167,6 +176,86 @@ function onGridState(grid_id, state) {
   }
 }
 
+function setNextRent(id) {
+  var chg_thru;
+  $('.ChargeForm').each( function(i) {
+      if ($('.ChargeFormThroughDate', this).attr('id') == 'Entry'+id+'ThroughDate')
+	return;
+
+      if ($('.ChargeFormAccount option:selected', this).val() == <?php echo $rentAccount ?>
+	  && $('.ChargeFormThroughDate', this).val()) {
+	var dt = new Date($('.ChargeFormThroughDate', this).val());
+	//$('#debug').append('Rent in ' + i + '; date ' + dt + '<BR>');
+	if (chg_thru == null || dt > chg_thru)
+	  chg_thru = dt;
+      }
+    });
+
+  if (!chg_thru) {
+    chg_thru = <?php
+    if ($lease['charge_through_date'])
+      echo 'new Date("'.date('m/d/Y', strtotime($lease['charge_through_date'])).'")';
+    elseif ($lease['paid_through_date'])
+      echo 'new Date("'.date('m/d/Y', strtotime($lease['paid_through_date'])).'")';
+    else
+      echo 'dateYesterday("'.date('m/d/Y', strtotime($lease['movein_date'])).'")';
+    ?>;
+  }
+
+  if (chg_thru < dateEOM(chg_thru)) {
+    // Add a charge to finish out the month
+    datepickerSet('Entry'+id+'EffectiveDate', dateTomorrow(chg_thru));
+    datepickerSet('Entry'+id+'ThroughDate',   dateEOM(chg_thru));
+  } else {
+    // Add a whole month's charge for next month
+    datepickerSet('Entry'+id+'EffectiveDate', dateNextBOM(chg_thru));
+    datepickerSet('Entry'+id+'ThroughDate',   dateNextEOM(chg_thru));
+  }
+
+  // Now add in the amount owed based on the calculated
+  // effective and through dates.
+  prorate(id);
+}
+
+function prorate(id) {
+  var edt = datepickerGet('Entry'+id+'EffectiveDate');
+  var tdt = datepickerGet('Entry'+id+'ThroughDate');
+  var rent = $('#invoice-rent').html().replace(/\$/,'');
+
+  // Reset the comment.  It might wipe out a user comment,
+  // but it's probably low risk/concern
+  $('#Entry'+id+'Comment').val('');
+
+  if (edt == null || tdt == null) {
+    alert('Can only prorate with both effective and through dates');
+    rent = 0;
+  }
+  else if (edt > tdt) {
+    alert('Effective date is later than the Through date');
+    rent = 0;
+  }
+  else if (tdt.getMonth() == edt.getMonth() + 1 && 
+	   edt.getDate()   == tdt.getDate()  + 1) {
+    // appears to be anniversary billing, one full cycle
+  }
+  else if (edt.getTime() == dateBOM(edt).getTime() &&
+	   tdt.getTime() == dateEOM(edt).getTime()) {
+    // appears to be one full month
+  }
+  else {
+    var one_day=1000*60*60*24;
+    var days = Math.ceil((tdt.getTime()-edt.getTime()+1)/(one_day));
+    var dim = 
+      ((edt.getMonth() == tdt.getMonth())
+       ? dateEOM(edt).getDate() // prorated within the month.
+       : 30); // prorated across months.
+    rent *= days / dim;
+    $('#Entry'+id+'Comment').val('Rent proration: '+days+'/'+dim+' days');
+  }
+
+  $('#Entry'+id+'Amount').val(fmtCurrency(rent));
+}
+
 function addChargeSource(flash) {
   var id = $("#charge-entry-id").val();
   addDiv('charge-entry-id', 'charge', 'charges', flash,
@@ -178,26 +267,32 @@ function addChargeSource(flash) {
 	 echo FormatHelper::phpVarToJavascript
 	 ($this->element('form_table',
 			 array('id' => 'Entry%{id}Form',
-			       'class'  => "item invoice ledger-entry entry",
+			       'class'  => "ChargeForm item invoice ledger-entry entry",
 			       //'with_name_after' => ':',
 			       'field_prefix' => 'Entry.%{id}',
 			       'fields' => array
 			       ("account_id"  => array('name' => 'Account',
 						       'opts' =>
-						       array('options' => $chargeAccounts,
+						       array('class' => 'ChargeFormAccount',
+							     'options' => $chargeAccounts,
 							     'value' => $defaultAccount,
 							     ),
+						       'between' => '<A HREF="#" ONCLICK="setNextRent(\'%{id}\'); return false;">Rent</A>',
 						       ),
 				"effective_date" => array('opts' =>
-							  array('type' => 'text'),
+							  array('class' => 'ChargeFormEffectiveDate',
+								'type' => 'text'),
 							  'between' => '<A HREF="#" ONCLICK="datepickerBOM(\'TransactionStamp\',\'Entry%{id}EffectiveDate\'); return false;">BOM</A>',
 							),
 				"through_date" => array('opts' =>
-							array('type' => 'text'),
+							array('class' => 'ChargeFormThroughDate',
+							      'type' => 'text'),
 							'between' => '<A HREF="#" ONCLICK="datepickerEOM(\'Entry%{id}EffectiveDate\',\'Entry%{id}ThroughDate\'); return false;">EOM</A>',
 							),
-				"amount"       => array('opts' => array('class' => 'invoice amount')),
-				"comment"      => array('opts' => array('size' => 50)),
+				"amount"       => array('opts' => array('class' => 'ChargeFormAmount invoice amount'),
+							'between' => '<A HREF="#" ONCLICK="prorate(\'%{id}\'); return false;">Prorate</A>',
+							),
+				"comment"      => array('opts' => array('class' => 'ChargeFormComment', 'size' => 50)),
 				),
 			       ))) . "+\n";
 	 ?>
@@ -330,9 +425,25 @@ Configure::write('debug', '0');
     $('tr td:nth-child('+col+'), tr th:nth-child('+col+')', this).remove();
   };
 
+  function addHidden(id, fld, name) {
+    $('#Entry'+id+fld).after
+      ('<input type="hidden"' +
+       ' name="data[Entry]['+id+']['+name+']"' +
+       ' value="' + $('#Entry'+id+fld).val() + '">');
+  }
+
   $(document).ready(function(){
       datepicker('TransactionStamp');
 
+      <?php if (isset($lease['id'])): ?>
+      $("#lease-id").val(<?php echo $lease['id']; ?>);
+      $("#invoice-lease").html("<?php echo '#'.$lease['number']; ?>");
+      $("#invoice-unit").html("<?php echo $unit['name']; ?>");
+      $("#invoice-customer").html("<?php echo $customer['name']; ?>");
+      $("#invoice-rent").html("<?php echo FormatHelper::currency($lease['rent']); ?>");
+      $("#invoice-late").html("<?php echo FormatHelper::currency($defaultLate); ?>");
+      $("#invoice-deposit").html("<?php echo FormatHelper::currency($lease['deposit']); ?>");
+      <?php else: ?>
       $("#lease-id").val(0);
       $("#invoice-lease").html("INTERNAL ERROR");
       $("#invoice-unit").html("INTERNAL ERROR");
@@ -340,6 +451,8 @@ Configure::write('debug', '0');
       $("#invoice-rent").html("INTERNAL ERROR");
       $("#invoice-late").html("INTERNAL ERROR");
       $("#invoice-deposit").html("INTERNAL ERROR");
+      <?php endif; ?>
+
 
       <?php if (empty($movein)): ?>
 
@@ -356,7 +469,7 @@ Configure::write('debug', '0');
       $('#TransactionStamp').after
 	('<input type="hidden"' +
 	 ' name="data[Transaction][stamp]"' +
-	 ' value="<?php echo date('m/d/Y', $movein['time']); ?>">');
+	 ' value="' + $("#TransactionStamp").val() + '">');
       $("#TransactionComment").val('Move-In Charges');
 
       <?php if ($movein['deposit'] != 0): ?>
@@ -364,61 +477,28 @@ Configure::write('debug', '0');
       $('#Entry'+id+'Form').removeCol(2);
       $('#Entry'+id+'Form input, #Entry'+id+'Form select').attr('disabled', true);
       $('#Entry'+id+'EffectiveDate').val("<?php echo date('m/d/Y', $movein['effective_time']); ?>");
-      $('#Entry'+id+'EffectiveDate').after
-	('<input type="hidden"' +
-	 ' name="data[Entry]['+id+'][effective_date]"' +
-	 ' value="<?php echo date('m/d/Y', $movein['effective_time']); ?>">');
+      addHidden(id, 'EffectiveDate', 'effective_date');
       $('#Entry'+id+'AccountId').val(<?php echo $securityDepositAccount; ?>);
-      $('#Entry'+id+'AccountId').after
-	('<input type="hidden"' +
-	 ' name="data[Entry]['+id+'][account_id]"' +
-	 ' value="<?php echo $securityDepositAccount; ?>">');
+      addHidden(id, 'AccountId', 'account_id');
       $('#Entry'+id+'Amount').val("<?php echo FormatHelper::currency($movein['deposit']); ?>");
-      $('#Entry'+id+'Amount').after
-	('<input type="hidden"' +
-	 ' name="data[Entry]['+id+'][amount]"' +
-	 ' value="<?php echo FormatHelper::currency($movein['deposit']); ?>">');
-      //$('#Entry'+id+'Comment').val('Move-In Security Deposit');
+      addHidden(id, 'Amount', 'amount');
       $('#Entry'+id+'Comment').removeAttr('disabled');
       <?php endif; ?>
 
       id = addChargeSource(false);
       $('#Entry'+id+'Form').removeCol(2);
       $('#Entry'+id+'Form input, #Entry'+id+'Form select').attr('disabled', true);
-      $('#Entry'+id+'EffectiveDate').val("<?php echo date('m/d/Y', $movein['effective_time']); ?>");
-      $('#Entry'+id+'EffectiveDate').after
-	('<input type="hidden"' +
-	 ' name="data[Entry]['+id+'][effective_date]"' +
-	 ' value="<?php echo date('m/d/Y', $movein['effective_time']); ?>">');
-      $('#Entry'+id+'ThroughDate').val("<?php echo date('m/d/Y', $movein['through_time']); ?>");
-      $('#Entry'+id+'ThroughDate').after
-	('<input type="hidden"' +
-	 ' name="data[Entry]['+id+'][through_date]"' +
-	 ' value="<?php echo date('m/d/Y', $movein['through_time']); ?>">');
-      $('#Entry'+id+'AccountId').val(<?php echo $rentAccount; ?>);
-      $('#Entry'+id+'AccountId').after
-	('<input type="hidden"' +
-	 ' name="data[Entry]['+id+'][account_id]"' +
-	 ' value="<?php echo $rentAccount; ?>">');
-      $('#Entry'+id+'Amount').val("<?php echo FormatHelper::currency($movein['prorated_rent']); ?>");
-      $('#Entry'+id+'Amount').after
-	('<input type="hidden"' +
-	 ' name="data[Entry]['+id+'][amount]"' +
-	 ' value="<?php echo FormatHelper::currency($movein['prorated_rent']); ?>">');
-      $('#Entry'+id+'Comment').val("<?php echo($movein['prorated'] ? 'Move-In Rent (Prorated)' : ''); ?>");
+      setNextRent(id);
+      addHidden(id, 'EffectiveDate', 'effective_date');
+      addHidden(id, 'ThroughDate', 'through_date');
+      addHidden(id, 'AccountId', 'account_id');
+      addHidden(id, 'Amount', 'amount');
       $('#Entry'+id+'Comment').removeAttr('disabled');
 
       <?php endif; ?>
 
 
       <?php if (isset($lease['id'])): ?>
-      $("#lease-id").val(<?php echo $lease['id']; ?>);
-      $("#invoice-lease").html("<?php echo '#'.$lease['number']; ?>");
-      $("#invoice-unit").html("<?php echo $unit['name']; ?>");
-      $("#invoice-customer").html("<?php echo $customer['name']; ?>");
-      $("#invoice-rent").html("<?php echo FormatHelper::currency($lease['rent']); ?>");
-      $("#invoice-late").html("<?php echo FormatHelper::currency($defaultLate); ?>");
-      $("#invoice-deposit").html("<?php echo FormatHelper::currency($lease['deposit']); ?>");
       onGridState(null, 'hidden');
       <?php else: ?>
       onGridState(null, 'visible');
diff --git a/site/webroot/js/pmgr.js b/site/webroot/js/pmgr.js
index dde34cc..e682cbb 100644
--- a/site/webroot/js/pmgr.js
+++ b/site/webroot/js/pmgr.js
@@ -67,7 +67,17 @@ function dump(element, limit, depth) {
     if (props.length == 0)
 	return '';
 
-    return pad + '<ol><li>' + props.join("</li>\n" + pad + pad1 + "<li>") + "</li>\n" + pad + "</ol>";
+    if (typeof dump.dumpid == 'undefined')
+        dump.dumpid = 0;
+
+    ++dump.dumpid;
+    return (pad
+	    + '<A HREF="#" ONCLICK="$(\'#dumpid-'+dump.dumpid+'\').toggle(); return false;">(hide members)</A><BR>'
+	    + '<ol id="dumpid-'+dump.dumpid+'" STYLE="padding-top:0; margin-top:0;">'
+	    + '<li>'
+	    + props.join("</li>\n" + pad + pad1 + '<li id="dumpid-'+dump.dumpid+'">')
+	    + "</li>\n"
+	    + pad + "</ol>");
 }
 
 function dump_window(element, limit) {
@@ -158,70 +168,103 @@ function datepicker(id) {
     }
 }
 
-
-function datepickerNow(id, usetime) {
-  var now = new Date();
-  if ($("#"+id).datepicker != null) {
-      // datepicker seems to squash the time portion,
-      // so we have to pass in a copy of now instead.
-      $("#"+id).datepicker('setDate', new Date(now));
-  }
-  else {
-      $("#"+id).val(((now.getMonth()+1) < 10 ? '0' : '')
-		    + (now.getMonth()+1) + '/'
-		    + (now.getDate() < 10 ? '0' : '')
-		    + now.getDate() + '/'
-		    + now.getFullYear());
-  }
-
-  if (usetime == null)
-      usetime = true;
-
-  $("#"+id).val($("#"+id).val() +
-		(usetime
-		 ? (' '
-		    + (now.getHours() < 10 ? '0' : '')
-		    + now.getHours() + ':'
-		    + (now.getMinutes() < 10 ? '0' : '')
-		    + now.getMinutes())
-		 : ''));
-}
-
-function datepickerSet(fromid, id, a, b) {
-  var dt;
-  if (fromid == null)
+function datepickerGet(id) {
+  if (id == null)
     dt = new Date();
   else {
-      if ($("#"+id).datepicker != null)
-	  dt = new Date($("#"+fromid).datepicker('getDate'));
-      else
-	  dt = new Date($("#"+fromid).val());
+    if ($("#"+id).datepicker != null && $("#"+id).datepicker('getDate') != null)
+      dt = new Date($("#"+id).datepicker('getDate'));
+    else if ($("#"+id).val())
+      dt = new Date($("#"+id).val());
+    else
+      dt = null;
   }
 
-  if (a != null)
-    dt.setDate(a);
-  if (b != null)
-    dt.setDate(b);
+  return dt;
+}
 
-  if ($("#"+id).datepicker != null)
-      $("#"+id).datepicker('setDate', dt);
+function datepickerStr(id) {
+  return dateStr(datepickerGet(id));
+}
+
+function datepickerSet(id, dt_or_str, usetime) {
+  if ($("#"+id).datepicker != null && $("#"+id).datepicker('getDate') != null) {
+      // datepicker seems to squash the time portion,
+      // so we have to pass in a copy of dt instead.
+      $("#"+id).datepicker('setDate', new Date(dt_or_str));
+      if (usetime)
+	  $("#"+id).val($("#"+id).val() + ' ' + timeStr(dt_or_str));
+  }
   else {
-      $("#"+id).val(((dt.getMonth()+1) < 10 ? '0' : '')
-		    + (dt.getMonth()+1) + '/'
-		    + (dt.getDate() < 10 ? '0' : '')
-		    + dt.getDate() + '/'
-		    + dt.getFullYear());
+      $("#"+id).val(dateStr(dt_or_str), usetime);
   }
 }
 
-function datepickerBOM(fromid, id) {
-  datepickerSet(fromid, id, 1);
+function datepickerNow(id, usetime) {
+  datepickerSet(id, new Date(), usetime == null ? true : usetime);
 }
 
-function datepickerEOM(fromid, id) {
-  datepickerSet(fromid, id, 32, 0);
+function dateStr(dt_or_str, usetime) {
+  var dt = new Date(dt_or_str);
+
+  return (((dt.getMonth()+1) < 10 ? '0' : '')
+	  + (dt.getMonth()+1) + '/'
+	  + (dt.getDate() < 10 ? '0' : '')
+	  + dt.getDate() + '/'
+	  + dt.getFullYear()
+	  + (usetime ? ' ' + timeStr(dt) : ''));
 }
 
+function timeStr(dt_or_str) {
+  var dt = new Date(dt_or_str);
+
+  return ((dt.getHours() < 10 ? '0' : '')
+	  + dt.getHours() + ':'
+	  + (dt.getMinutes() < 10 ? '0' : '')
+	  + dt.getMinutes());
+}
+
+function dateAdd(dt_or_str, a, b, m, d) {
+  var dt = new Date(dt_or_str);
+  if (m != null) {
+    dt.setDate(1);
+    dt.setMonth(dt.getMonth() + m);
+    //$('#debug').append('set month ('+m+') ' + (dt.getMonth() + m) + '= ' + dt + '<BR>');
+  }
+  if (d != null) {
+    dt.setDate(dt.getDate() + d);
+    //$('#debug').append('set day ('+d+') ' + (dt.getDate() + d) + '= ' + dt + '<BR>');
+  }
+  if (a != null) {
+    dt.setDate(a);
+    //$('#debug').append('set date ('+a+') = ' + dt + '<BR>');
+  }
+  if (b != null) {
+    dt.setDate(b);
+    //$('#debug').append('set date ('+b+') = ' + dt + '<BR>');
+  }
+  return dt;
+}
+
+function dateYesterday(dt) { return dateAdd(dt,null,null,null,-1); }
+function dateTomorrow(dt)  { return dateAdd(dt,null,null,null,1); }
+function dateBOM(dt)       { return dateAdd(dt,1);        }
+function dateNextBOM(dt)   { return dateAdd(dt,1,null,1); }
+function dateEOM(dt)       { return dateAdd(dt,32,0);     }
+function dateNextEOM(dt)   { return dateAdd(dt,32,0,1);   }
+
+function datepickerBOM(fromid, id)
+{ datepickerSet(id, dateBOM(datepickerGet(fromid))); }
+
+function datepickerEOM(fromid, id)
+{ datepickerSet(id, dateEOM(datepickerGet(fromid))); }
+
+function datepickerNextBOM(fromid, id)
+{ datepickerSet(id, dateNextBOM(datepickerGet(fromid))); }
+
+function datepickerNextEOM(fromid, id)
+{ datepickerSet(id, dateNextEOM(datepickerGet(fromid))); }
+
 
 // REVISIT <AP>: 20090617
 //  I would rather use XML to pass from JS to PHP, but at the