// JavaScript Document
var Timer;
var subMenu = '';


function highlight(who) {
	var tem = who.src.indexOf('_dn');
	if (tem == -1){
		who.src = '../../images/menu_' + who.id + '_ro.gif';
	}
}
function lowlight(who) {
	var tem = who.src.indexOf('_dn');
	if (tem == -1){
		who.src = '../../images/menu_' + who.id + '_up.gif';
	}
}
function show(who) {
	hide();
	obj = document.getElementById(who);
	obj.style.visibility = "visible";
	subMenu = obj.id;
}
function hide() {
	document.getElementById('sub_architecture').style.visibility = "hidden";
	document.getElementById('sub_landscape').style.visibility = "hidden";
	document.getElementById('sub_people').style.visibility = "hidden";
	document.getElementById('sub_stilllife').style.visibility = "hidden";
}
function changeFoto(p,l){
	document.getElementById('picture').src = p.src.replace(/thumbs/, 'pics');
	if(l){
		var first_ = p.src.indexOf('_');
		var legenda = p.src.substr(first_);
		legenda = legenda.replace(/_/g, ' ');
		legenda = legenda.replace(/.jpg/, '');
		//alert(p.src.replace(/thmubs/, 'pics'));
	} else {
		legenda = '';
	}
	document.getElementById('legend').innerHTML = legenda;
}

function ScrollDown()
{
	if(subMenu != ''){
	  Timer = setInterval("document.getElementById(subMenu).scrollTop += 2", 15);
	}
}
function ScrollUp()
{
	if(subMenu != ''){
	  Timer = setInterval("document.getElementById(subMenu).scrollTop -= 2", 15);
	}
}