Added example for select all performance.

index-2-3.html

@@ -193,6 +193,15 @@
                     $('#example41').multiselect({
 			        	includeSelectAllOption: true
 			        });
+                    
+                    for (var i = 1; i < 1000; i++) {
+                        $('#example45').append('<option value="' + i + '">Option ' + i + '</option>');
+                    }
+                    
+                    $('#example45').multiselect({
+                        includeSelectAllOption: true,
+                        maxHeight: 150
+                    });
 			    });
 			</script>
 			<p>
@@ -267,6 +276,14 @@
                         The 'Select all' option automatically repsonds to the selection of the user. In particular, it responds to the initial state of the select.
 					</td>
 				</tr>
+                <tr>
+					<td>
+						<select id="example45" multiple="multiple"></select>
+					</td>
+					<td>
+                        Test the performance of the 'Select all' option with 999 options.
+					</td>
+				</tr>
 				<tr>
 					<td>
 						<select id="example3" multiple="multiple">

index.html

@@ -203,6 +203,15 @@
                             alert('Dropdown hidden ...');
                         }
                     });
+                    
+                    for (var i = 1; i < 1000; i++) {
+                        $('#example45').append('<option value="' + i + '">Option ' + i + '</option>');
+                    }
+                    
+                    $('#example45').multiselect({
+                        includeSelectAllOption: true,
+                        maxHeight: 150
+                    });
 			    });
 			</script>
 			<p>
@@ -277,6 +286,14 @@
                         The 'Select all' option automatically repsonds to the selection of the user. In particular, it responds to the initial state of the select.
 					</td>
 				</tr>
+                <tr>
+					<td>
+						<select id="example45" multiple="multiple"></select>
+					</td>
+					<td>
+                        Test the performance of the 'Select all' option with 999 options.
+					</td>
+				</tr>
 				<tr>
 					<td>
 						<select id="example3" multiple="multiple">

js/bootstrap-multiselect.js

@@ -346,9 +346,9 @@
 
                 if (isSelectAllOption) {
                     var values = [];
+                    
                     // Select the visible checkboxes except the "select-all" and possible divider.
                     var availableInputs = $('li input[value!="' + this.options.selectAllValue + '"][data-role!="divider"]', this.$ul).filter(':visible');
-                    
                     for (var i = 0, j = availableInputs.length; i < j; i++) {
                         values.push(availableInputs[i].value);
                     }