function showtab(mid,totle,current){
	for(i=1;i<=totle;i++){
		document.getElementById(mid+i).className='MouseOff';
		document.getElementById('s'+mid+i).style.display='none';
		}
		document.getElementById(mid+current).className='MouseOn';
		document.getElementById('s'+mid+current).style.display='block';
	}