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Using jQuery to center a DIV on the screen

I like adding functions to jQuery so this function would help:

 
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;
}
 $.fn.center = function () {
            this.css({
                'position': 'fixed',
                'left': '50%',
                'top': '50%'
            });
            this.css({
                'margin-left': -this.width() / 2 + 'px',
                'margin-top': -this.height() / 2 + 'px'
            });

            return this;
        }
Now we can just write:
$(element).center();



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