function toggle_collapse(obj)
{
	var top = fetch_object("top_" + obj);
	var menu = fetch_object("menu_" + obj);

	if(menu.style.display == "none") {
		menu.style.display = "";
		top.className = "menutopon";
	} else {
		menu.style.display = "none";
		top.className = "menutopoff";
	}
}

function fetch_object(idname)
{
	var my_obj = document.getElementById(idname);
	return my_obj;
}

function validate_form(obj, word)
{
	var validate_status = 1;
	for (var i=0;i<obj.length;i++)
	{
		if (obj[i] == "")
		{
			validate_status = 0;
			alert(word[i]);
		}
		if (validate_status == 0)
		{
			return false;
		}
	}
	return true;
}