function cookie(name,value,expires,path,domain,secure)
{this.name=name;this.value=value;this.expires=expires;this.path=path;this.domain=domain;this.secure=secure;this.read=function()
{var ck=document.cookie;var arg=this.name+"=";var alen=arg.length;var clen=ck.length;var i=0;while(i<clen)
{var j=i+ alen;if(ck.substring(i,j)==arg)
{var endstr=ck.indexOf(";",j);if(endstr==-1)endstr=ck.length;return unescape(ck.substring(j,endstr));}
i=ck.indexOf(" ",i)+ 1;if(i==0)break;}
return null;}
this.set=function()
{expStore=this.expires;exp=new Date();base=new Date(0);skew=base.getTime();if(skew>0)exp.setTime(exp.getTime()- skew);exp.setTime(exp.getTime()+(this.expires*24*60*60*1000));this.expires=exp;document.cookie=this.name+"="+ escape(this.value)+
((this.expires)?"; expires="+ this.expires.toGMTString():"")+
((this.path)?"; path="+ this.path:"")+
((this.domain)?"; domain="+ this.domain:"")+
((this.secure)?"; secure":"");this.expires=expStore;}
this.kill=function()
{document.cookie=this.name+"="+
((this.path)?"; path="+ this.path:"")+
((this.domain)?"; domain="+ this.domain:"")+"; expires=Thu, 01-Jan-70 00:00:01 GMT";}
this.changeName=function(chName){this.kill();this.name=chName;this.set();}
this.changeVal=function(chVal){this.kill();this.value=chVal;this.set();}
this.changeExp=function(chExp){this.kill();this.expires=chExp;this.set();}
this.changePath=function(chPath){this.kill();this.path=chPath;this.set();}
this.changeDomain=function(chDom){this.kill();this.domain=chDom;this.set();}
this.changeSecurity=function(chSec){this.kill();this.secure=chSec;this.set();}}