function setDisplaySwitch(name_o)
{
		setCloseAllElements();

		var element_o = document.getElementById(name_o);
			element_o.style.display = element_o.style.display ? '' : 'none';
};

function setCloseAllElements()
{
	var object_a = new Array()
		object_a[0] = "submenu_1"
		object_a[1] = "submenu_2"
		object_a[2] = "submenu_3"
		object_a[3] = "submenu_4"

	for(i_i = 0; i_i<4; i_i++)

		{
		var	element_o = document.getElementById(object_a[i_i]);
			element_o.style.display = 'none';

		}

}