function accendi() {
 
if (document.getElementById("info").style.display == "block"){
	document.getElementById("info").style.display = "none"
 
}else{
 
	document.getElementById("formOn").style.display = 'block';
	document.getElementById("formOff").style.display = "none"
	//document.getElementById("info1").style.height = "246px"
	document.getElementById("info").style.display = 'block';
	
	var objname= document.getElementById("nome")
	objname.setAttribute("value", objname.getAttribute("placeHolder"));
	
	var objcognome= document.getElementById("cognome")
	objcognome.setAttribute("value", objcognome.getAttribute("placeHolder"));
	
	var objemail= document.getElementById("email")
	objemail.setAttribute("value", objemail.getAttribute("placeHolder"));
	
	var objtelefono= document.getElementById("telefono")
	objtelefono.setAttribute("value", objtelefono.getAttribute("placeHolder"));
	}
 
}	

function spegni() {
	document.getElementById("info").style.display = 'none';
}




function isLegal(input, legalchars) {
	var ok = true;
	var chr = null;
	var i = 0;
	for (i=0; (i<input.length) && (ok); i++) {
		chr = input.charAt(i);
		ok = (legalchars.indexOf(chr,0) != -1);
	}
	return ok;
}


function limit_note(ctrl, max) {
	if (ctrl.value.length > max) {
		ctrl.value = ctrl.value.substring(0, max);
		//alert('Il commento puņ essere al massimo di 100 caratteri.');
		return false;
	}
}