Added tabindex to button.

index.html

@@ -135,6 +135,8 @@
 			        	enableFiltering: true,
 			        	maxHeight: 150
 			        });
+                    
+                    $('#example32').multiselect();
 			    });
 			</script>
 			<p>
@@ -482,6 +484,21 @@
 						The multiselect will adopt the state of the select: <code>&lt;select disabled&gt;&lt;/select&gt;</code>.
 					</td>
 				</tr>
+                <tr>
+					<td>
+						<select id="example32" multiple="multiple" tabindex="1">
+							<option value="cheese">Cheese</option>
+							<option value="tomatoes">Tomatoes</option>
+							<option value="mozarella">Mozzarella</option>
+							<option value="mushrooms">Mushrooms</option>
+							<option value="pepperoni">Pepperoni</option>
+							<option value="onions">Onions</option>
+						</select>
+					</td>
+					<td>
+						The buttin will keep the <code>tabindex</code> of the select.
+					</td>
+				</tr>
 			</table>
 			<div class="page-header">
 				<h1>Code</h1>

js/bootstrap-multiselect.js

@@ -41,12 +41,19 @@
         this.$container = $(this.options.buttonContainer).append('<button type="button" class="multiselect dropdown-toggle ' + this.options.buttonClass + '" data-toggle="dropdown">' + this.options.buttonText(this.getSelected(), this.$select) + '</button>')
             .append('<ul class="multiselect-container dropdown-menu' + (this.options.dropRight ? ' pull-right' : '') + '"></ul>');
 
+        // Manually add button width if set.
         if (this.options.buttonWidth) {
             $('button', this.$container).css({
                 'width' : this.options.buttonWidth
             });
         }
-
+        
+        // Keep the tab index from the select.
+        var tabindex = this.$select.attr('tabindex');
+        if (tabindex) {
+            $('button', this.$container).attr('tabindex', tabindex);
+        }
+        
         // Set max height of dropdown menu to activate auto scrollbar.
         if (this.options.maxHeight) {
             // TODO: Add a class for this option to move the css declarations.