Fixed missing var declaration causing trouble in IE, reworded interacting example

git-svn-id: https://flot.googlecode.com/svn/trunk@87 1e0a6537-2640-0410-bfb7-f154510ff394

examples/interacting.html

@@ -13,8 +13,8 @@
 
     <div id="placeholder" style="width:600px;height:300px"></div>
 
-    <p>One of the goals of Flot is to support user interactions intelligently.
-    Try mousing the above plot.</p>
+    <p>One of the goals of Flot is to support user interactions. Try
+    pointing and clicking on the points.</p>
 
     <p id="hoverdata">Mouse hovers at
     (<span id="x">0</span>, <span id="y">0</span>). <span id="clickdata"></span></p>

jquery.flot.js

@@ -1601,7 +1601,7 @@
             if (y2axis.used)
                 pos.y2 = y2axis.c2p(canvasY);
 
-            item = findNearbyItem(canvasX, canvasY);
+            var item = findNearbyItem(canvasX, canvasY);
 
             if (item) {
                 // fill in mouse pos for any listeners out there