fix isNaN bug

Author: pricco

examples/simple.html

@@ -14,11 +14,14 @@
     <p>
         <span class="counter" data-direction="down">0:10</span>
     </p>
+    <p>
+        <span class="counter" data-direction="up" data-interval="1" data-format="9999" data-stop="2012">0</span>
+    </p>
     <p>
         <span class="counter" data-direction="up" data-format="23:59:59.9" data-stop="00:00:10.0" data-interval="100">0:00.0</span>
     </p>
     <p>
-        <span class="counter" data-direction="up" data-format="300" data-stop="300" data-interval="100">0</span>
+        <span class="counter" data-direction="up" data-format="1 1 1 1 1 1 1 1" data-stop="0 0 1 0 0 0 0 0" data-interval="100">0</span>
     </p>
     <p>Initialization</p>
     <pre>

src/jquery.counter.js

@@ -29,8 +29,8 @@
                 part.value += data.down ? -1 : 1;
                 if (data.down && part.value < 0) {
                     part.value = part.limit;
-                } else if (!data.down && part.value > part.limit) {
-                    part.value = 0;
+		} else if (!data.down && part.value > part.limit) {
+		    part.value = 0;
                 } else {
                     break;
                 }
@@ -80,7 +80,7 @@
             }
             e.html('');
             $.each(format, function(index, value) {
-                if (!isNaN(value)) {
+                if (/^\d+$/.test(value)) {
                     var part = {};
                     part.index = index;
                     part.padding = (value + '').length;