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;
}

function $(o){
 var o=document.getElementById(o)?document.getElementById(o):'';
 return o;
}

function style(num){
	$("wb").href="http://ccoo.zhongsou.com/netbar/images/wb_"+num+".css";
	 var expdate=new Date();
     expdate.setTime(expdate.getTime()+(24*60*60*1000*365));
	 SetCookie("skin",num,expdate,"/",null,false);
	
}