function sDiv(url, param, target) {
	var xmlhttp=GetXmlHttpObject();
	if (xmlhttp==null) {
  		alert ("Your browser does not support XMLHTTP!");
  		return;
  	}
	
	param = "sid="+Math.random() + param;

	xmlhttp.open("POST", url, true);
	xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=utf-8");
	xmlhttp.send(param);
	
	
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState==4) {
  			document.getElementById(target).innerHTML=xmlhttp.responseText;
  			if(url=='galleria.php')  $('#gallery a').lightBox();
  			if(url=='attivita.php') {
  				$('#gallery a').lightBox();
  			}
  		}	
	};
}

function dim(page) {
	if(page=='big') {
		document.getElementById('bottom').style.height='970px';
		document.getElementById('corpo').style.height='950px';	
	}else if(page=='med') {
		document.getElementById('bottom').style.height='770px';
		document.getElementById('corpo').style.height='750px';	
	}else if(page=='little') {
		document.getElementById('bottom').style.height='470px';
		document.getElementById('corpo').style.height='450px';		
	}
}

function showAttivita(id) {
	document.getElementById('corpoPreliminari').style.display='none';
	document.getElementById('corpoParamassi').style.display='none';
	document.getElementById('corpoConsolidamento').style.display='none';
	document.getElementById('corpoFranosi').style.display='none';
	document.getElementById('corpoIng').style.display='none';
	document.getElementById('attrezzature').style.display='none';

	document.getElementById('DIV_corpoPreliminari').style.backgroundColor='#FFFFFF';
	document.getElementById('DIV_corpoParamassi').style.backgroundColor='#FFFFFF';
	document.getElementById('DIV_corpoConsolidamento').style.backgroundColor='#FFFFFF';
	document.getElementById('DIV_corpoFranosi').style.backgroundColor='#FFFFFF';
	document.getElementById('DIV_corpoIng').style.backgroundColor='#FFFFFF';
	document.getElementById('DIV_attrezzature').style.backgroundColor='#FFFFFF';
	
	
	document.getElementById(id).style.display='block';
	document.getElementById("DIV_"+id).style.backgroundColor='#FFDCAF';
	
}

function GetXmlHttpObject() {
	if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari
  		return new XMLHttpRequest();
  	}
	if (window.ActiveXObject) { // code for IE6, IE5
  		return new ActiveXObject("Microsoft.XMLHTTP");
  	}
	return null;
}