function SetCookie(name,value){
var argv=SetCookie.arguments;
var argc=SetCookie.arguments.length;
var expires=(2<argc)?argv[2]:null;
var path=(3<argc)?argv[3]:null;
var domain=(4<argc)?argv[4]:null;
var secure=(5<argc)?argv[5]:false;
document.cookie=name+"="+escape(value)+((expires==null)?"":("; expires="+expires.toGMTString()))+((path==null)?"":("; path="+path))+((domain==null)?"":("; domain="+domain))+((secure==true)?"; secure":"");
}

function GetCookie(Name) {
var search = Name + "=";
var returnvalue = "";
if (document.cookie.length > 0) {
offset = document.cookie.indexOf(search);
if (offset != -1) { 
offset += search.length;
end = document.cookie.indexOf(";", offset); 
if (end == -1)
end = document.cookie.length;
returnvalue=unescape(document.cookie.substring(offset,end));
}
}
return returnvalue;
}

var thisskin;
thisskin=GetCookie("nowskin");
if(thisskin!="")
document.getElementById("skin").href=thisskin;
else
document.getElementById("skin").href=('/css7/style.css');

function changecss(url){
if(url!=""){
document.getElementById("skin").href=url;
var expdate=new Date();
expdate.setTime(expdate.getTime()+(24*60*60*1000*30));
//expdate=null;
//以下设置COOKIES时间为1年,自己随便设置该时间..
SetCookie("nowskin",url,expdate,"/",null,false);
}
}