function menu_show(id) {
	var Spans = document.getElementsByTagName('div');
	for(var i=0; i < Spans.length; i++) {
		var name = Spans[i].id;
		if(name == id) {
		 	if(Spans[i].style.visibility == 'hidden') {
		 		Spans[i].style.visibility 	= 'visible';
				Spans[i].style.display 		= 'inline';
			}
			else {
				Spans[i].style.visibility 	= 'hidden';
				Spans[i].style.display 		= 'none';
			}
		}
		
		//else (name != id && name.indexOf('menu_') == 1) {
		//if(name != id && name.indexOf('menu_') == 1) {
		else {
			//alert(name);
			if(name != id && name.indexOf('enu_') == 1) {
			Spans[i].style.visibility 		= 'hidden';
			Spans[i].style.display 			= 'none';
			}
		}
	}
}