var Chiamata_up;
var Chiamata_down;
var delta=10;
var dim_max=100;
var dim_min=0;
var n_celle=7;
var id_img = "img_foto";
var id_div = "div_foto";
var id_div2 = "div_foto2";

function td_box(num) {
	
	td_box_up(num);
	td_box_down(num);
}

function td_box_up(num) {

var td,index_px;
var txt = 'td_box_up('+ String(num)+')';
var x=dim_min;

	div = "div_box_" + String(num);
	td = "td_box_" + String(num);
	a_menu = "a_box_" + String(num);
	index_px = Number(document.getElementById(div).style.height.indexOf("px"));
	x = Number(document.getElementById(div).style.height.substr(0,index_px));
		if (x < dim_max){
			x = x + delta;
			Chiamata_up = setTimeout(txt,25);
		} else { x = dim_max; }
	document.getElementById(div).style.height= String(x)+'px';
	document.getElementById(td).className = 'td_menu_over';
	document.getElementById(a_menu).className = 'a_menu_over';

}


function td_box_down(num) {

var td,index_px;
var do_call = 0;
var txt = 'td_box_down('+ String(num)+')';
var y=dim_min;
for(i=1; i<n_celle+1; i++) {
	div = "div_box_" + String(i);
	td = "td_box_" + String(i);
	a_menu = "a_box_" + String(i);
	if (i != num) {
		index_px = Number(document.getElementById(div).style.height.indexOf("px"));
		y = Number(document.getElementById(div).style.height.substr(0,index_px)); 
		if (y > dim_min) {
			y =  y - delta;
			do_call = 1;
		} else { y=dim_min;}
		document.getElementById(div).style.height= String(y)+'px';
		document.getElementById(td).className = 'td_menu';
		document.getElementById(a_menu).className = 'a_menu';
	}
 }
if (do_call == 1 ) {Chiamata_down = setTimeout(txt,25);	}
}

function ferma() {clearTimeout(Chiamata_up);clearTimeout(Chiamata_down);}

function visualizza(foto) {
	document.getElementById(id_div).style.visibility = 'visible';
	document.getElementById(id_div2).style.visibility = 'visible';
	//document.getElementById("loading").style.visibility = 'visible';
	document.getElementById(id_img).src= '../images/loadinfo.gif';
	tmp_img = new Image();
	tmp_img.onload=function()  { document.getElementById(id_img).src = '../images/immagini_locale/' + foto;}
 	tmp_img.src = '../images/immagini_locale/'+ foto;
			

}

function nascondi() {
	
	document.getElementById(id_div).style.visibility = 'hidden';
	document.getElementById(id_div2).style.visibility = 'hidden';
}