// JavaScript Document
function tabDiv(objpre,num,len,cn,nn)
{
 var cssname=cn;
 var normalname=nn;
 for(var id = 1;id<=len;id++)
 {
  var ss=objpre+id;
  var snav =objpre+"nav"+id;
  if(id==num){
  try{
	  document.getElementById(ss).style.display="block";
  }catch(e){
  };
  try{document.getElementById(snav).className=cssname}catch(e){};
  }else{
  try{document.getElementById(ss).style.display="none"}catch(e){};
  try{document.getElementById(snav).className=normalname}catch(e){};
  }
 }  
}