function g(o){return document.getElementById(o);} 
function Hovertab(num,counts,tabname,tabclass){ 
for (i=1;i<=counts;i++) 
{ 
g(tabname+'tab0'+i).className=tabclass+'tabs'; 
g(tabname+'div0'+i).style.display='none'; 
} 
g(tabname+'tab0'+num).className=tabclass+'tabs_act'; 
g(tabname+'div0'+num).style.display='block'; 
}