function welcome() {
	var d=new Date();
	thr=d.getHours();
	var info="您好"
	switch(thr){
	case 0:	
	info="夜里好"
	break;
	case 2:
	info="凌晨好";
	break;
	case 5:
	info="早晨好";
	break;
	case 8:
	case 9:
	case 10:
	info="上午好";
	break;
	case 11:
	case 12:
	case 13:
	info="中午好";
	break;

	case 14:
	case 15:
	case 16:
	info="下午好";
	break;

	case 17:
		info="傍晚好";
	break;
	case 18:
	case 19:
	case 20:
	case 21:
	case 22:
		info="晚上好";
	break;

	case 23	:
	info="夜里好，"

	}	
	document.write(info)
try{
	s=""
	s=s.substring(0,10)
	if(s!=""&&s!=null)
	     document.write("&nbsp;"+s + "&nbsp;<A HREF='http://www.kmedu.net/login.aspx?op=logout&urlto='><font color=darkgreen>退出网站</font></A>")
	else 
		document.write("，欢迎光临！");
		}catch(e){}
}