function SH(d1, d2) {
	if (d1 != '') pokaz(d1);
	if (d2 != '') pokaz(d2);
}
function pokaz(id) {
	var item = null;
	var item1 = null;
	var z;
	if (document.getElementById) {
		item = document.getElementById(id);
		} else if (document.all){
			item = document.all[id];
		} else if (document.layers){
			item = document.layers[id];
	}

for(z=1;z<15;z++){
id1="region"+z;
	if (document.getElementById) {
		item1 = document.getElementById(id1);
		} else if (document.all){
			item1 = document.all[id1];
		} else if (document.layers){
			item1 = document.layers[id1];
	}
item1.style.display = "none";
}

	if (!item) {
	

	}
	else if (item.style) {
			if (item.style.display == "none"){ 
				item.style.display = ""; 
			
			}
			else {
				item.style.display = "none"; 
			}
	}else{ 
				item.visibility = "show"; 
	}

	item2=item;
	z=0;
//	alert(z);
}