// JavaScript Document

function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
        }
    else {
        window.onload = function() {
            oldonload();
            func();
            }
        }
    }

function fit_flash() {
    var slideshow;
    var initial_height;
    var margin;
    var ratio;

    addLoadEvent(init);

    function init() {
        slideshow = document.getElementById("slideshow");
        initial_height = slideshow.height;
        margin = slideshow.offsetTop;
        ratio = slideshow.width/slideshow.height;

        window.onresize = resize;
        resize();
        }

    function resize() {
        var window_height = window.innerHeight || document.documentElement.clientHeight;
        var target_height = Math.max(window_height - 2*margin, 400);

        if (target_height < initial_height) {
            slideshow.height = target_height;
            slideshow.width = target_height*ratio;
            }
        else {
            slideshow.height = initial_height;
            slideshow.width = initial_height*ratio;
            }
        }
    }