//here you place the ids of every element you want.
var ids_classification=new Array('blocco_classification01','blocco_classification02','blocco_classification03','blocco_classification04');

function switchid_classification(id_classification){	
	hideallids_classification();
	showdiv_classification(id_classification);
}

function hideallids_classification(){
	//loop through the array and hide each element by id
	for (var i=0;i<ids_classification.length;i++){
		hidediv_classification(ids_classification[i]);
	}		  
}

function hidediv_classification(id_classification) {
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id_classification).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id_classification.display = 'none';
		}
		else { // IE 4
			document.all.id_classification.style.display = 'none';
		}
	}
}

function showdiv_classification(id_classification) {
	//safe function to show an element with a specified id
		  
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id_classification).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id_classification.display = 'block';
		}
		else { // IE 4
			document.all.id_classification.style.display = 'block';
		}
	}
}
function switchclass_classification(id_classification,id_classification2,id_classification3,id_classification4){
	if (document.getElementById(id_classification).className == 'menu') { // DOM3 = IE5, NS6
		document.getElementById(id_classification).className= 'click';
		document.getElementById(id_classification2).className= 'menu';
		document.getElementById(id_classification3).className= 'menu';
		document.getElementById(id_classification4).className= 'menu';
	}
	else {
	}
}