// Functions for changing the background image (intro, submenu)

function change_background_intro(pattern){
	parent.background=pattern;
	parent.pixel.location.reload();
	self.location.href = "../02_introduction/introduction.html";
}

function change_background_submenu(){
	switch(parent.background){
		case "intro": 	change_background("modern");
						break;
		case "modern": 	change_background("hippie");
						break;
		case "hippie": 	change_background("binary");
						break;
		case "binary": 	change_background("retro");
						break;								
		case "retro": 	change_background("tribal");
						break;				
		case "tribal": 	change_background("modern");
						break;
	}
}

function change_background(pattern){
	parent.background=pattern;
	parent.pixel.location.reload();
	self.location.reload();
}

// Functions for changing the project (portfolio)

var actual_project = 1;
var actual_layer = "project1";
var max_project = 10;

function change_project(num) {
	actual_image = "p" + actual_project;
	selected_image = "p" + num;
	selected_layer = "project" + num;
	document.images[actual_image].src = "../00_common/img/button_page_off.gif";
	document.images[selected_image].src = "../00_common/img/button_page_on.gif";
	document.images['screenshot'].src = "../04_portfolio/img/pic_portfolio_"+num+".jpg";
	getElement(actual_layer).visibility = "hidden";
	getElement(selected_layer).visibility = "visible";
	actual_project = num;
	actual_layer = "project" + num;
}

function previous_project() {
	if (actual_project > 1)
		change_project(actual_project-1);
	
}

function next_project() {
	if (actual_project < max_project)
	change_project(actual_project+1);
}

// Functions for changing the gallery

var actual_gallery = 1;
var actual_thumb = 1;
var max_gallery = 4;

function change_gallery(num){
	actual_image = "g" + actual_gallery;
	selected_image = "g" + num;
	document.images[actual_image].src = "../00_common/img/button_page_off.gif";
	document.images[selected_image].src = "../00_common/img/button_page_on.gif";
	
	actual_gallery = num;
	
	document.images["thumb_1_1"].src = "../06_gallery/img/pic_thumb_gallery_"+actual_gallery+"_1.jpg";
	document.images["thumb_1_2"].src = "../06_gallery/img/pic_thumb_gallery_"+actual_gallery+"_2.jpg";
	document.images["thumb_1_3"].src = "../06_gallery/img/pic_thumb_gallery_"+actual_gallery+"_3.jpg";
	
	document.images["thumb_2_1"].src = "../06_gallery/img/pic_thumb_gallery_"+actual_gallery+"_4.jpg";
	document.images["thumb_2_2"].src = "../06_gallery/img/pic_thumb_gallery_"+actual_gallery+"_5.jpg";
	document.images["thumb_2_3"].src = "../06_gallery/img/pic_thumb_gallery_"+actual_gallery+"_6.jpg";
	
	document.images["thumb_3_1"].src = "../06_gallery/img/pic_thumb_gallery_"+actual_gallery+"_7.jpg";
	document.images["thumb_3_2"].src = "../06_gallery/img/pic_thumb_gallery_"+actual_gallery+"_8.jpg";
	document.images["thumb_3_3"].src = "../06_gallery/img/pic_thumb_gallery_"+actual_gallery+"_9.jpg";
	
	change_zoom(1);
}

function previous_gallery(){
	if (actual_gallery > 1)
		change_gallery(actual_gallery-1);
}

function next_gallery(){
	if (actual_gallery < max_gallery)
		change_gallery(actual_gallery+1);
}

function change_zoom(num) {
	actual_thumb = num;
	document.images["zoom"].src = "../06_gallery/img/pic_zoom_gallery_"+actual_gallery+"_"+actual_thumb+".jpg";
}

// Functions for changing the links

var actual_links = "design";
var actual_links_layer = "divdesign";

function change_links(selected_links) {
	selected_links_layer = "div" + selected_links;
	document.images[actual_links].src = "../07_links/img/button_links_"+actual_links+"_off.gif";
	document.images[selected_links].src = "../07_links/img/button_links_"+selected_links+"_on.gif";
	getElement(actual_links_layer).visibility = "hidden";
	getElement(selected_links_layer).visibility = "visible";
	actual_links = selected_links;
	actual_links_layer = "div" + selected_links;
}


// general functions for  netscape

function redo() {
  			window.location.reload();
		}

if (NN4) window.onresize = redo;