/* APRE E CHIUDE IL DIV POP UP */

function shownet() {

	backg = document.getElementById('cvn-bg');
	popsm = document.getElementById('cvn-network');
	document.body.scrollTop=0;

	contheight=document.body.scrollHeight;
	contwidth=document.body.scrollWidth;

	backg.style.height=100+'%';
	backg.style.width=100+'%';
	backg.style.display='block';
	popsm.style.display='block';
	backg.style.opacity = 0.9;
	backg.style.filter = 'alpha(opacity=90)';


	/* document.getElementById('target').innerHTML = "contheight " + contheight + " contwidth " + contwidth; */

}

function hidenet() {

	backg.style.display='none';
	popsm.style.display='none';

}

var delta=0;
var pos=0;

function muovi() {
	if (((pos==-30)&&(delta==-1))||((pos==0)&&(delta==1))) delta=0;
	pos=pos+delta;
	document.getElementById('scroll').style.top = pos+"px";
	if (delta!=0) setTimeout('muovi()',5);
}