var precThis = false;		
var precThis1 = false;

function openGroup(obj){
	
	var divid = obj.id + 'Div';
	if(precThis){var precDivid = precThis.id + 'Div';}
	if(precThis != obj){
		if(precThis){
			precThis.className = '';
			document.getElementById(precDivid).style.display = 'none';
		}
		obj.className = 'selected';
		document.getElementById(divid).style.display = '';
		precThis = obj;
	}
}

function changeYear(obj1){
	var tableid = obj1.id + 'Table';
	if(precThis1){var precTableid = precThis1.id + 'Table';}
	if(obj1.src == 'http://www.eni.it/it_IT/static/images/piu.gif'){
		if(precThis1){
			precThis1.src = 'http://www.eni.it/it_IT/static/images/piu.gif';
			document.getElementById(precTableid).style.display = 'none';
		}
		obj1.src = 'http://www.eni.it/it_IT/static/images/meno.gif';
		document.getElementById(tableid).style.display = '';
		precThis1 = obj1;
	}else{
		obj1.src = 'http://www.eni.it/it_IT/static/images/piu.gif';
		document.getElementById(tableid).style.display = 'none';
		precThis1 = false;
	}
}

function openYear(category,year,tail,c){
	var imgDiv = category + year;
	var openID = category + year + tail;	
	if(c){
		document.getElementById(openID).style.display = 'block';
		document.getElementById(imgDiv).src = '/it_IT/static/images/meno.gif';
		for(i=1;i<7;i++){
			imgDiv = category + (year - i);
			openID = category + (year - i) + tail;
			if(document.getElementById(openID)){
				document.getElementById(openID).style.display = 'block';
				document.getElementById(imgDiv).src = '/it_IT/static/images/meno.gif';
				i = 10;
			}
		}
	}
}

function paramOpenGroup(){
	//alert('sono entrato nella funzione paramOpenGroup');
	var splitString = new Array();
	var splitString2 = new Array();
	var urlString = document.location.search.substr(1);
	//alert('la url ritorna il parametro come urlString='+urlString);
	if(urlString.length > 0){
		//type=bil-rap&headersite=documentazione&doc_from=site_header
		splitString = urlString.split('=');
		splitString2 = splitString[1].split('&');
		//alert('splitString='+splitString);
		openGroup(document.getElementById(splitString2[0]));
	}
}