function Back_Next(all,cur)
{
 if (cur == '1')
 {
 	document.all['backing'].style.visibility	= 'hidden';
 	document.all['M_sign'].style.visibility		= 'hidden';
 }

 if (cur == all)
 {
	 document.all['nexting'].style.visibility 	= 'hidden';
	 document.all['M_sign'].style.visibility	= 'hidden';
 }
   

 if ((all == '0') || (all == '1')){
   document.all['paging'].style.visibility = 'hidden';
   document.all['backNext'].style.visibility = 'hidden';
   }
}