function toggle_id(obj) {
	var obj=document.getElementById(obj);
	if (obj.style.display == "block") obj.style.display = "none";
	else obj.style.display = "block";
}


function toggle(obj) {
	var obj=document.getElementById(obj);
	if (obj.style.display == "block") obj.style.display = "none";
	else obj.style.display = "block";
}


function toggle_sign(obj,img) {
	var obj=document.getElementById(obj);
	var img=document.getElementById(img);
	
	if (obj.style.display == "block"){
		obj.style.display = "none";
		img.src = "imagini/plus.gif";
		
	}
	else {
		obj.style.display = "block";
		img.src = "imagini/minus.gif";
	}
}