Facing weird problem while adding and removing class

Question

i have below function which is being used to initialize a widget.

jQuery.fn.initPortlet = function( parent_component ,header , component ){
        var o         


        

Answer 1

Not sure what variable o is being used for - but the general point of my alteration below is to check to see if the class has been applied already, using the jQuery hasClass() function.

jQuery.fn.initPortlet = function( parent_component ,header , component ){
    var o = $(this[0])

    if (!this.hasClass('ui-widget'))
    {
      this.addClass("ui-widget ui-widget-content ui-corner-all")
        .find(header)           
        .addClass("headertitle")
        .addClass("align_center")
        .addClass("defaultheadercolor")
        .prepend('')
        .end()
        .find(component);
    }
};