diff --git a/cron/jquery-cron.js b/cron/jquery-cron.js
index 02721cc..05f679a 100644
--- a/cron/jquery-cron.js
+++ b/cron/jquery-cron.js
@@ -90,9 +90,11 @@
             closeEffect    : "slide",
             hideOnMouseOut : true
         },
+        displayPeriods: ['minute', 'hour', 'day', 'week', 'month', 'year'],
         url_set : undefined,
         customValues : undefined,
         onChange: undefined, // callback function each time value changes
+        displayTime: true,
         useGentleSelect: false
     };
 
@@ -139,23 +141,6 @@
         str_opt_dow += "<option value='"+i+"'>" + days[i] + "</option>\n";
     }
 
-    // options for period
-    var str_opt_period = "";
-    var periods = ["minute", "hour", "day", "week", "month", "year"];
-    for (var i = 0; i < periods.length; i++) {
-        str_opt_period += "<option value='"+periods[i]+"'>" + periods[i] + "</option>\n";
-    }
-
-    // display matrix
-    var toDisplay = {
-        "minute" : [],
-        "hour"   : ["mins"],
-        "day"    : ["time"],
-        "week"   : ["dow", "time"],
-        "month"  : ["dom", "time"],
-        "year"   : ["dom", "month", "time"]
-    };
-
     var combinations = {
         "minute" : /^(\*\s){4}\*$/,                    // "* * * * *"
         "hour"   : /^\d{1,2}\s(\*\s){3}\*$/,           // "? * * * *"
@@ -296,6 +281,23 @@
             // error checking
             if (hasError(this, o)) { return this; }
 
+            // options for period
+            var str_opt_period = "";
+            var periods = o.displayPeriods
+            for (var i = 0; i < periods.length; i++) {
+                str_opt_period += "<option value='"+periods[i]+"'>" + periods[i] + "</option>\n"; 
+            }
+
+            // display matrix
+            var toDisplay = {
+                "minute" : [],
+                "hour"   : ["mins"],
+                "day"    : o.displayTime ? ["time"] : [],
+                "week"   : o.displayTime ? ["dow", "time"] : ["dow"],
+                "month"  : o.displayTime ? ["dom", "time"] : ["dom"],
+                "year"   : o.displayTime ? ["dom", "month", "time"] : ["dom", "month"]
+            };
+
             // ---- define select boxes in the right order -----
 
             var block = [], custom_periods = "", cv = o.customValues;
@@ -375,7 +377,7 @@
                     .end();
 
             this.find("select").bind("change.cron-callback", event_handlers.somethingChanged);
-            this.data("options", o).data("block", block); // store options and block pointer
+            this.data("options", o).data("block", block).data("toDisplay", toDisplay); // store options and block pointer
             this.data("current_value", o.initial); // remember base value to detect changes
 
             return methods["value"].call(this, o.initial); // set initial value
@@ -405,7 +407,7 @@
                 };
 
                 // update appropriate select boxes
-                var targets = toDisplay[t];
+                var targets = this.data("toDisplay")[t];
                 for (var i = 0; i < targets.length; i++) {
                     var tgt = targets[i];
                     if (tgt == "time") {
@@ -435,6 +437,7 @@
         periodChanged : function() {
             var root = $(this).data("root");
             var block = root.data("block"),
+                toDisplay = root.data("toDisplay"),
                 opt = root.data("options");
             var period = $(this).val();
 
diff --git a/index.html b/index.html
index 7180030..2fc6575 100644
--- a/index.html
+++ b/index.html
@@ -68,6 +68,16 @@
             },
             useGentleSelect: true
         });
+        $('#example4').cron({
+            displayPeriods: ['day', 'week', 'month'],
+        });
+        $('#example5').cron({
+            displayPeriods: ['day', 'week', 'month'],
+            displayTime: false,
+            onChange: function() {
+                $('#example5-val').text($(this).cron("value"));
+            }
+        });
     });
     </script>
 </head>
@@ -354,6 +364,42 @@ <h3 id='option-customvalues'>Adding custom values</h3>
         </li>
     </ul>
     </p>
+
+    <h3 id='option-periods'>Removing default periods</h3>
+    <p>
+    If you do not need certain periods to be displayed in the drop down, you can specify which periods to
+    display with the <tt>displayPeriods</tt> option.
+    </p>
+    <p>
+    For example, you can limit display periods to day, week, and month with the following:
+    <pre>
+$('#selector').cron({
+    displayPeriods: ['day', 'week', 'month']
+});
+    </pre>
+    </p>
+    <div class='example'>
+        <div id='example4'></div>
+    </div>
+
+    <h3 id='option-showTime'>Disabling time selection</h3>
+    <p>
+    Time selection can also be disabled with the <tt>displayTime</tt> option.  This will only have an effect on the
+    periods that have time selection.
+    </p>
+    <p>
+    For example, the following disables time selection:
+    <pre>
+$('#selector').cron({
+    displayPeriods: ['day', 'week', 'month'],
+    displayTime: false
+});
+    </pre>
+    <div class='example'>
+        <div id='example5'></div>
+        <p>Generated cron entry: <span class='example-text' id='example5-val'></span></p>
+    </div>
+
     <h2>Methods</h2>
     <h3 id='method-value'>value</h3>
     <p>