function getById(id) { 
	return document.getElementById?document.getElementById(id):(document.all?document.all(id):null); 
	}
function hideDiv(id) { 
	getById(id).style.visibility = "hidden"; 
	getById(id).style.display = "none"; 
	}
function showDiv(id) { 
	getById(id).style.visibility = "visible"; 
	getById(id).style.display = "block"; 
}
function togglevis(layerID){ 
if(getById(layerID).style.visibility=="hidden"){
	showDiv(layerID);
}else{
	hideDiv(layerID);
}
}


function accessCSS(layerID){
	if(document.getElementById){
		return document.getElementById(layerID).style;
	}else if(document.all){
		return document.all[layerID].style;
	}else if(document.layers){
		return document.layers[layerID];
	}
}


function accendi_div(id,nome_div){
  	if (document.getElementById){
		if (document.getElementById(id + '_' + nome_div)) {
			for (var i = 1; i < 1000; i++) {
				if (document.getElementById(i + '_' + nome_div)) { hideDiv(i + '_' + nome_div);}
				else {i = 1000;}
			}
			showDiv(id + '_' + nome_div);
		}
	}
}

function accendi_div2(id,quanti,nome_div){
for (var i = 1; i <= quanti; i++) {
         hideDiv(i + '_' + nome_div);
		accessCSS(i + '_x').border="0px solid #ffffff";
     }
	showDiv(id + '_' + nome_div);
	accessCSS(id + '_x').border="0px solid #ffffff";
}
function accendi_mappa(url){
	ajaxpage(url, 'cartina');
}