function get_object(obj){
if (document.getElementById)
    return document.getElementById(obj);
else if (document.all)
    return document.all[obj];
}

function expandObj(obj_name, cmd) {

var obj;

obj = get_object(obj_name);

/*
cmd: hide   => force hide
cmd: toggle => toggle
cmd: show   => force show
*/
if (cmd=="hide") {
	eval('obj.style.display="none"');
	}
else if (cmd=="toggle") {
	if (obj.style.display=="none") {
		eval('obj.style.display=""');
		}
	else {
		eval('obj.style.display="none"');
		}	
	}
else {
	eval('obj.style.display=""');
	}
}