function exMenu(tName)
{
	tMenu = document.getElementById(tName).style;
	if (tMenu.display == 'none') tMenu.display = "block"; else tMenu.display = "none";
}


function exMenu2(tName,tNameBg)
{
	tMenu = document.getElementById(tName).style;

	if (tMenu.display == 'none') tMenu.display = "block"; else tMenu.display = "none";

	tMenuBg = document.getElementById(tNameBg);
	if (tMenuBg.className == "plus") {
	   tMenuBg.className = "minus";
	}else{
	   tMenuBg.className = "plus";
	}
}