Plugin ion range slider http://ionden.com/a/plugins/ion.rangeSlider/index.html

  
                            $pdocrud = new PDOCrud();
                            $pdocrud->addPlugin("ion-range-slider");//to add plugin          
                            $pdocrud->fieldCssClass("order_amount", array("order-amount"));// add css classes
                            $pdocrud->fieldAttributes("order_amount", array("data-type"=>"double", "data-min"=>10, "data-max"=>100, "data-grid"=>"true" , "data-skin"=>"round"));// any attribute name and it's value
                            echo $pdocrud->dbTable("orders")->render("insertform");
                            echo $pdocrud->loadPluginJsCode("ion-range-slider",".order-amount");//to add plugin call on select elements