scrollable: remove unused variables in click event for size: 2

time and fn variables do not belong to the scope of the click event's function.

Add test page for size 2 scrollable, including test.
Fixes http://flowplayer.org/forum/8/31650.

Author: phloxic

src/scrollable/scrollable.js

@@ -288,7 +288,7 @@
 					if (i == index) { i--; }
 					self.getItems().removeClass(klass);
 					item.addClass(klass);					
-					return self.seekTo(i, time, fn);
+					return self.seekTo(i);
 				}				
 
 				if (!item.hasClass(klass)) {				

test/scrollable/size2.html

@@ -0,0 +1,77 @@
+
+<script src="../jquery-1.3.2.js"></script>
+<script src="../../src/scrollable/scrollable.js"></script>
+<script src="../../src/scrollable/scrollable.circular.js"></script>
+<script src="../../src/scrollable/scrollable.navigator.js"></script>
+<script src="../../src/scrollable/scrollable.autoscroll.js"></script>
+
+<script src="../../src/util/util.history.js"></script>
+<script src="../../src/util/util.mousewheel.js"></script>
+
+<link rel="stylesheet" type="text/css" href="style.css"/>
+
+<style>
+div.cloned {
+       background-color:#ffc !important;
+}
+
+div.active {
+       background-color:#66d !important;
+}
+
+.disabled {
+       visibility:hidden;
+}
+</style>
+
+<script>
+$(function() {
+       var root = $("div.scrollable").scrollable({
+    size: 2,
+               mousewheel: true
+
+       }).navigator({idPrefix: 'a', history: true});
+
+
+       // setup api
+       window.api = root.scrollable();
+
+  // test http://flowplayer.org/forum/8/31650
+  $("button:eq(0)").click(function () {
+    try {
+      window.api.click(0);
+      $(this).text("success");
+    } catch (err) {
+      $(this).text("failed");
+    }
+  });
+});
+</script>
+
+
+<div class="navi"></div>
+
+
+<a class="prev">prev</a>
+<a class="prevPage">prevPage</a>
+
+<div class="scrollable" style="width:260px">
+
+       <div class="items">
+               <div>0</div>  <div>1</div>  <div>2</div>  <div>3</div> <div>4</div>
+               <div>5</div>  <div>6</div>  <div>7</div>  <div>8</div>  <div>9</div>
+               <div>10</div> <div>11</div> <div>12</div> <div>13</div> <div>14</div>
+       </div>
+
+</div>
+
+<a class="next">next</a>
+<a class="nextPage">nextPage</a>
+
+<br clear="all" />
+
+<h4>Test 8/31650</h4>
+
+<p>
+  <button type="button">test click</button>
+</p>