var timeout2=8000;  //切换时间
var timeout3=15000; //mouse over 后切换时间
var now_content=0;
var total_content=6;
var way=1;
var start_content=Math.round(Math.random()*(total_content-1))+1; //除广告为第一显示外
function content_mouse(num){
  now_content=num;
  window.clearInterval(theTimer2);   
  for (var i=1;i<=total_content;i++){
  document.getElementById('divhl0'+i).style.display='none';
  }
  document.getElementById('divhl0'+num).style.display='block';
  theTimer2=setTimeout('change_content()', timeout3);
}

function change_content(){
	
  for (var i=1;i<=total_content;i++){
  document.getElementById('divhl0'+i).style.display='none';
  }
  document.getElementById('divhl0'+now_content).style.display='block';
  if (way) now_content++;
  else now_content--;
  if(now_content>total_content) {now_content=total_content-1;way=0;}
  else if(now_content==0) {now_content=1;way=1;}
  theTimer2=setTimeout('change_content()', timeout2);
}
theTimer2=setTimeout(function(){now_content=1;change_content();}, timeout2);