fix api level filtering script to compare integers, not strings

Change-Id: I8f0e44ec2bf0833a0d547a3795ee31ee0dc69d8a
diff --git a/tools/droiddoc/templates-sdk/assets/android-developer-reference.js b/tools/droiddoc/templates-sdk/assets/android-developer-reference.js
index daddde0..31a702b 100644
--- a/tools/droiddoc/templates-sdk/assets/android-developer-reference.js
+++ b/tools/droiddoc/templates-sdk/assets/android-developer-reference.js
@@ -56,7 +56,7 @@
   if (userApiLevelEnabled == 0) {
     toggleVisisbleApis(selectedLevel, "body");
   } else {
-    selectedLevel = $("#apiLevelSelector option:selected").val();
+    selectedLevel = parseInt($("#apiLevelSelector option:selected").val());
     toggleVisisbleApis(selectedLevel, "body");
     
     var date = new Date();