var base_url;

function init_home_map(){
	$$('area').invoke('observe', 'mouseover', selectImage);
	$$('area').invoke('observe', 'mouseout', resetImage);
}

function selectImage(event){
	$('image_map').src = $('base_url_helper').href + "/images/" + Event.element(event).id + ".gif";
}
function resetImage(event){
	$('image_map').src = $('base_url_helper').href + "/images/guide-main.gif";
}

function init_agentura_map(){
	$$('area').invoke('observe', 'mouseover', selectAgenturaImage);
	$$('area').invoke('observe', 'mouseout', resetAgenturaImage);
}

function selectAgenturaImage(event){
	$('image_map').src = $('base_url_helper').href + "/images/maps/" + Event.element(event).id + ".png";
}
function resetAgenturaImage(){
	$('image_map').src = $('base_url_helper').href + "/images/maps/menu_2.png";
}

function init_sprava_map(){
	$$('area').invoke('observe', 'mouseover', selectSpravaImage);
	$$('area').invoke('observe', 'mouseout', resetSpravaImage);
}

function selectSpravaImage(event){
	$('image_map').src = $('base_url_helper').href + "/images/maps/" + Event.element(event).id + ".png";
}
function resetSpravaImage(){
	$('image_map').src = $('base_url_helper').href + "/images/maps/menu_3.png";
}

function init_about_map(){
	$$('area').invoke('observe', 'mouseover', selectAboutImage);
	$$('area').invoke('observe', 'mouseout', resetAboutImage);
}

function selectAboutImage(event){
	$('image_map').src = $('base_url_helper').href + "/images/maps/" + Event.element(event).id + ".png";
}
function resetAboutImage(){
	$('image_map').src = $('base_url_helper').href + "/images/maps/menu_4.png";
}