Fix htag movement on click event (Firefox)

js/bootstrap-multiselect.js

@@ -39,7 +39,7 @@
 				$(element).attr('selected', true);
 			}
 			
-			$('ul', this.container).append('<li><a href="#" style="padding:0;"><label style="margin:0;padding: 3px 20px 3px 20px;width:100%;height:100%;cursor:pointer;"><input style="margin-bottom:5px;" type="checkbox" value="' + $(element).val() + '" /> ' + $(element).text() + '</label</a></li>');
+			$('ul', this.container).append('<li><a href="javascript:void(0);" style="padding:0;"><label style="margin:0;padding: 3px 20px 3px 20px;width:100%;height:100%;cursor:pointer;"><input style="margin-bottom:5px;" type="checkbox" value="' + $(element).val() + '" /> ' + $(element).text() + '</label</a></li>');
 			
 			var selected = $(element).attr('selected') || false;
 			var checkbox = $('ul li input[value="' + $(element).val() + '"]', this.container);