Index: t3lib/class.t3lib_tceforms.php
--- t3lib/class.t3lib_tceforms.php Base (BASE)
+++ t3lib/class.t3lib_tceforms.php Locally Modified (Based On LOCAL)
@@ -1097,7 +1097,17 @@
 			// css class and id will show the kind of field
 		if (in_array('date', $evalList)) {
 			$inputId = uniqid('tceforms-datefield-');
-			$cssClasses[] = 'tceforms-textfield tceforms-datefield';
+
+			$dateRange = '';
+			if (isset($config['range']['lower'])) {
+				$dateRange .= ' lower-' . intval($config['range']['lower']);
+			}
+			if (isset($config['range']['upper'])) {
+				$dateRange .= ' upper-' . intval($config['range']['upper']);
+			}
+
+			$cssClasses[] = 'tceforms-textfield tceforms-datefield' . $dateRange;
+
 			$fieldAppendix = t3lib_iconWorks::getSpriteIcon(
 				'actions-edit-pick-date',
 				array(
Index: t3lib/js/extjs/tceforms.js
--- t3lib/js/extjs/tceforms.js Base (BASE)
+++ t3lib/js/extjs/tceforms.js Locally Modified (Based On LOCAL)
@@ -38,17 +38,25 @@
 	},
 
 	convertDateFieldsToDatePicker: function() {
-		var dateFields = Ext.select("input[id^=tceforms-date]");
+		var dateFields = Ext.select("input[id^=tceforms-date]"), minDate, maxDate, lowerMatch, upperMatch;
 		dateFields.each(function(element) {
 			var index = element.dom.id.match(/tceforms-datefield-/) ? 0 : 1;
 			var format = TYPO3.settings.datePickerUSmode ? TYPO3.settings.dateFormatUS : TYPO3.settings.dateFormat;
 
 			var datepicker = element.next('span');
 
+			// check for daterange
+			var lowerMatch = element.dom.className.match(/lower-(\d+)\b/);
+			minDate = Ext.isArray(lowerMatch) ? new Date(lowerMatch[1] * 1000) : null;
+			var upperMatch = element.dom.className.match(/upper-(\d+)\b/);
+			maxDate = Ext.isArray(upperMatch) ? new Date(upperMatch[1] * 1000) : null;
+
 			var menu = new Ext.menu.DateMenu({
 				id:			'p' + element.dom.id,
 				format:		format[index],
 				value:		Date.parseDate(element.dom.value, format[index]),
+				minDate:	minDate,
+				maxDate:	maxDate,
 				handler: 	function(picker, date){
 					var relElement = Ext.getDom(picker.ownerCt.id.substring(1));
 					relElement.value = date.format(format[index]);