CURE|THE|ITCH

I am by no means a JQuery expert, but I pieced together this hack to reposition dialogs in facebook to where the viewport actually is. It is an ugly hack which scans for the tag in the common facebook dialog - which could break if they change the structure of the dialogs, but it should die gracefully in that event.

$(document).ready(function(){
    (function($){
        $.facebook_fixes = {
            dialog_repositioner: function() {
                if ( $('td.fb_pop_border').is(':visible') ) {
                    dialogHeight = ( parseInt($('table#RES_ID_fb_pop_dialog_table').css("height").replace("px",'')) || $('table#RES_ID_fb_pop_dialog_table').height() );
                    dialogWidth = ( parseInt($('table#RES_ID_fb_pop_dialog_table').css("width").replace("px",'')) || $('table#RES_ID_fb_pop_dialog_table').width() );
                    windowHeight = (
                        window.innerHeight && window.innerHeight < 
                        $(window).height()) ? window.innerHeight : $(window).height();
                    if ( dialogHeight +55 < windowHeight ) {
                        var scrollTop = (document.documentElement.scrollTop || document.body.scrollTop)
                        var newPosition = scrollTop + 50;
                        $('table#RES_ID_fb_pop_dialog_table').css({
                            float:"left",
                            position:"absolute",
                            top:newPosition
                        });
                    }
                    if ( parseInt(dialogWidth) > 710 ) {
                        $('table#RES_ID_fb_pop_dialog_table').css({
                            float:"left",
                            position:"absolute",
                            left:-12
                        });
                    }
                }
            }
        }
    })(jQuery);

    setInterval( "$.facebook_fixes.dialog_repositioner()", 100 )
});