function setTab(m,n){ 
var tli=document.getElementById("mtype"+m).getElementsByTagName("TD"); 
var mli=document.getElementById("con"+m).getElementsByTagName("table"); 
for(i=0;i<tli.length;i++){ 
   //tli[i].className=i==n?"hover":""; 
   //tli[i].className=i==n?"":""; 
   mli[i].style.display=i==n?"block":"none"; 
} 
}