function chli(liname,nowid,num,classname,boxname){
	for (i=0;i<num;i++)
	{document.getElementById(liname+i).className=classname;
	 document.getElementById(boxname+i).style.display="none";
	}
	document.getElementById(liname+nowid).className=classname+"_move";
	document.getElementById(boxname+nowid).style.display="";
}