function showMenu(which){
	document.getElementById(which).style.visibility="visible";
}
function hideMenu(which){
	document.getElementById(which).style.visibility="hidden";
}
/*	if(screen.availWidth>=1024&&screen.availHeight>=768){
		top.resizeTo(1024,768);
	}*/
	//top.moveTo(0,0)
	top.focus();