document.write("<select class='imgsel' onchange='settime(this.value)' id='mySelect'>");
document.write("<option value='3'>自动播放(3秒)</option>");
document.write("<option value='1000000'>手动播放</option>");
document.write("</select>");
function getpicCookie(pic_name)
{
if (document.cookie.length>0)
{ 
c_start=document.cookie.indexOf(pic_name + "=")
if (c_start!=-1)
{ 
c_start=c_start + pic_name.length+1 
c_end=document.cookie.indexOf(";",c_start);
if (c_end==-1) c_end=document.cookie.length
return unescape(document.cookie.substring(c_start,c_end));
} 
}
return ""
}

function setpicCookie(pic_name,value,expiredays)
{
var exdate=new Date()
exdate.setTime(exdate.getTime() + expiredays*60*1000);
document.cookie=pic_name+ "=" +escape(value)+
((expiredays==null) ? "" : "; expires="+exdate.toGMTString())
}


  
   function settime(time)
 {
  setpicCookie('pic_name',time,10);
  setTimeout("jump()",time*1000);
  if(time=="1000000"){
    clearTimeout();
   }
  }
 
 var x=getpicCookie('pic_name');
 if (x!=null && x!="")
{
var optt=document.getElementById("mySelect");
  var _o=optt.options;

  for(var i = 0;i<_o.length;i++){
   
	if(_o[i].value==x){
		_o[i].selected=true;
	}else{
	_o[i].selected=false;
	}
  }
settime(x);
}else{
settime("3");
}