window.onerror = null;

var ns6 = (!document.all && document.getElementById);
var ie4 = (document.all);

var slide_list_en = new Array(
    "http://static4.millennium.pl.eu.org/graphics/info/main_slide_en_1.jpg",
    "http://static1.millennium.pl.eu.org/graphics/info/main_slide_en_2.jpg",
    "http://static2.millennium.pl.eu.org/graphics/info/main_slide_en_3.jpg",
    "http://static3.millennium.pl.eu.org/graphics/info/main_slide_en_4.jpg",
    "http://static1.millennium.pl.eu.org/graphics/info/main_slide_en_5.jpg",
    "http://static2.millennium.pl.eu.org/graphics/info/main_slide_en_6.jpg"
);

var slide_list_pl = new Array(
    "http://static4.millennium.pl.eu.org/graphics/info/main_slide_pl_1.jpg",
    "http://static1.millennium.pl.eu.org/graphics/info/main_slide_pl_2.jpg",
    "http://static2.millennium.pl.eu.org/graphics/info/main_slide_pl_3.jpg",
    "http://static3.millennium.pl.eu.org/graphics/info/main_slide_pl_4.jpg",
    "http://static3.millennium.pl.eu.org/graphics/info/main_slide_pl_5.jpg",
    "http://static4.millennium.pl.eu.org/graphics/info/main_slide_pl_6.jpg"
);

var slide_list;
var slide_images = new Array();
var slide_speed = 5000;
var slide_index = 1;

function main_slide_setTimeout(timeout) {
    if (ie4)
        window.setTimeout("switch_slide()", timeout);
    else if (ns6)
        window.setTimeout(switch_slide, timeout);
}

function switch_slide() {
    if (slide_images[slide_index].complete) {
	document.getElementById("main_slide").src = slide_images[slide_index].src;
	slide_index = slide_index + 1;
	if (slide_index >= 6)
	    slide_index = 0;
	main_slide_setTimeout(slide_speed);
    } else
	main_slide_setTimeout(10);
}

function main_slide_start(lang) {
    if (document.images) {
	if (lang == "pl")
	    slide_list = slide_list_pl;
	else
	    slide_list = slide_list_en;

        for (i = 0; i < slide_list.length; i++) {
    	    slide_images[i] = new Image();
    	    slide_images[i].src = slide_list[i];
	}

	main_slide_setTimeout(slide_speed);
    }
}