/*DUCMINH created: 2009-05-13
*/
var state = 'none';

function showhideDiv(divid) {
	if (state == 'block') {
		state = 'none';
	}
	else {
		state = 'block';
	}

	if (document.all) { //IS IE 4 or 5 (or 6 beta)
		eval( "document.all." + divid + ".style.display = state");
	}

	if (document.layers) { //IS NETSCAPE 4 or below
		document.layers[divid].display = state;
	}

	if (document.getElementById &&!document.all) {
		hza = document.getElementById(divid);
		hza.style.display = state;
	}
}