diff --git a/filter.js b/filter.js
index d832faf..c53c340 100644
--- a/filter.js
+++ b/filter.js
@@ -274,7 +274,12 @@
     var vals = [];
 
     criteria.$ele.filter(criteria.selector).each(function() {
-      vals.push($(this).val());
+			var value = $(this).val();
+			if (value instanceof Array) {
+				vals = vals.concat(value);
+			} else {
+				vals.push(value);
+			}
     });
 
     if(criteria.type == 'range'){
@@ -325,7 +330,7 @@
 
   //Search
   var bindSearchEvent = function(searchBox, timeout, context){
-    $('body').on('keyup', searchBox, function(e){
+    var handler = function(e){
       if (context.searchTimeoutId) {
         clearTimeout(context.searchTimeoutId);
       }
@@ -333,7 +338,15 @@
         context.filter();
       }, timeout);
       //context.searchFilter(true);
-    });
+    };
+    $('body').on('keyup', searchBox, handler);
+    return handler;
+  };
+
+  var unbindSearchEvent = function(searchBox, handler){
+    if (handler) {
+      $('body').off('keyup', searchBox, handler);
+    }
   };
 
   F.initSearch = function(opts){
@@ -350,7 +363,8 @@
     if(this.$search_ele.length){
       this.has_search = true;
       this.searchFn = this.buildSearchFn(opts.fields);
-      bindSearchEvent(opts.ele, opts.timeout || 0, this);
+      unbindSearchEvent(opts.ele, this.searchHandler);
+      this.searchHandler = bindSearchEvent(opts.ele, opts.timeout || 0, this);
     }
   };