function g(o){return document.getElementById(o);}    
   
   function Hovertab(num,counts,tabname,tabclass){          
   for (i=1;i<=counts;i++)        
     {  g(tabname+'tab'+i).className=tabclass+'book_tabs';          
	     g(tabname+'div0'+i).style.display='none';         
		 
	  }      
		         g(tabname+'tab'+num).className=tabclass+'book_act';      
				 g(tabname+'div0'+num).style.display='block';      
						                              } 
   function menutab(num,counts,tabname,tabclass){          
   for (i=1;i<=counts;i++)        
     {  g(tabname+'tab00'+i).className=tabclass+'bookmenu_tabs';          
	     g(tabname+'div00'+i).style.display='none';         
		 
	  }      
		         g(tabname+'tab00'+num).className=tabclass+'bookmenu_act';      
				 g(tabname+'div00'+num).style.display='block';      
						                              }