javascript 读取，设置cookies

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;

}