function setTab(name,cursel,n)
{ 
	for(i=1;i<=n;i++)
	{ 
		var menu=document.getElementById(name+i); 
		var con=document.getElementById("con_"+name+"_"+i); 
		menu.className=i==cursel?"hover":""; 
		con.style.display=i==cursel?"block":"none"; 
	} 
} 

function opensite(o)
{ 
	win = window.open(o.href,"_blank"); 
	win.opener="www.p5w.net"; 
	return false; 
} 

function isInnerAD(o)
{
	var str = o.href;
	if (str.toLowerCase().indexOf(".p5w") < 0 && str.toLowerCase().indexOf(".cninfo") < 0 && str.toLowerCase().indexOf(".szse") < 0)
	{
		o.title = '敬请注意：此乃网络广告，广告商的言论与行为，均与全景网无关';
	}
}

function checkform()
{
    var  f = document.myform;
   if(TrimNull(f.user_name.value)=="")
   {
      alert("对不起，用户名的内容不能为空！");
      f.user_name.focus();
      return false;
    } 
    
   if(TrimNull(f.use_pwd.value)=="")
   {
      alert("对不起，密码的内容不能为空！");
      f.use_pwd.focus();
      return false;
    } 
    
   if(TrimNull(f.safecode.value)=="")
   {
      alert("对不起，验证码的内容不能为空！");
      f.safecode.focus();
      return false;
    }  
    return true;

}

function TrimNull(s) {
  var count = s.length;
  var st    = 0;       // start
  var end   = count-1; // end

  if (s == "") return s;
  while (st < count) {
    if (s.charAt(st) == " ")
      st ++;
    else
      break;
  }
  while (end > st) {
    if (s.charAt(end) == " ")
      end --;
    else
      break;
  }
  return s.substring(st,end + 1);
}

function tdate()
 { 
   calendar = new Date();
   day = calendar.getDay();
   month = calendar.getMonth();
   date = calendar.getDate();
   year = calendar.getYear();
   month++;
   if (date<10) date="0"+date ;
   if (month<10) month="0"+month ;
   if (year<=1000) year = 1900 + year;
   switch(day)
    {
 	case 1:tweek="星期一" ;
 		break;
 	case 2:tweek="星期二" ;
 		break;
 	case 3:tweek="星期三" ;
 		break;
 	case 4:tweek="星期四" ;
 		break
 	case 5:tweek="星期五" ;
 		break;
 	case 6:tweek="星期六" ;
 		break;
 	case 0:tweek="星期日" ;
 		break;
    }
   document.write("　<b>"+month+"月"+date+"日　");
   document.write(tweek+"</b>　") ;
 }