menu_status = new Array(); 

function showHide(theid){
    if (document.getElementById) {
    var switch_id = document.getElementById(theid);

	if(menu_status[theid] != 'show') {
	   switch_id.className = 'show';
	   menu_status[theid] = 'show';
	}else{
	   switch_id.className = 'hide';
	   menu_status[theid] = 'hide';
	}
    }
}