jQuery Center element method

center.js

  // add Center method to jquery
  jQuery.fn.center = function () {
      this.css("position","absolute");
      this.css("top", Math.max(0, (($(window).height() - $(this).outerHeight()) / 2) + 
                                                  $(window).scrollTop()) + "px");
      this.css("left", Math.max(0, (($(window).width() - $(this).outerWidth()) / 2) + 
                                                  $(window).scrollLeft()) + "px");
      return this;
  }
  
  
  // Call
  
  jQuery("element").center();