function firstcookie()
{
	var keyword=document.getElementById("kword").value;
	//alert(keyword);
	addCookie('keyword',keyword,0);
	addCookie('searchtype',0,0);
	addCookie('page',1,0);
	addCookie('city','all',0);
	addCookie('province','all',0);
}
function setcookie()
{
	var keyword=document.getElementById("skword").value;
	var searchtype=document.getElementById("stype").value;
	var page=document.getElementById("spage").value;
	var city=document.getElementById("scity").value;
	var province=document.getElementById("sprov").value;
	addCookie('keyword',keyword,0);
	addCookie('searchtype',searchtype,0);
	addCookie('page',page,0);
	addCookie('city',city,0);
	addCookie('province',province,0);
	//alert("susscess");
}
function getcookievalue()
{
	var keyword=getCookie('keyword');
	var searchtype=getCookie('searchtype');
	var page=getCookie('page');
	var city=getCookie('city');
	var province=getCookie('province');
  document.getElementById("skword").value=keyword;
	document.getElementById("stype").value=searchtype;
	document.getElementById("spage").value=page;
	document.getElementById("scity").value=city;
	document.getElementById("sprov").value=province;
}
function addCookie(name,value,expireHours){
	var cookieString=name+"="+escape(value);
	//判断是否设置过期时间
	if(expireHours>0){
		var date=new Date();
		date.setTime(date.getTime+expireHours*3600*1000); // 转换为毫秒
		cookieString=cookieString+"; expire="+date.toGMTString();
	}
	document.cookie=cookieString;
}
//获取指定名称的cookie值：getCookie(name)
//该函数返回名称为name的cookie值，如果不存在则返回空，其实现如下：
function getCookie(name){
	var strCookie=document.cookie;
	var arrCookie=strCookie.split("; "); // 将多cookie切割为多个名/值对
	//从后往前找
	for(var i=arrCookie.length-1;i>=0;i--){ // 遍历cookie数组，处理每个cookie对
	var arr=arrCookie[i].split("="); // 找到名称为userId的cookie，并返回它的值
	if(arr[0]==name)
		return unescape(arr[1]);
	}
	return "";
}