function getCookie( name ){
 var start = document.cookie.indexOf( name + "=" );
 var len = start + name.length + 1;
 if ((!start) && (name!=document.cookie.substring(0,name.length))){
    return '';
 }
 if (start==-1) return '';
 var end = document.cookie.indexOf(';',len);
 if (end==-1) end = document.cookie.length;
 return unescape(document.cookie.substring(len,end));
}

function setCookie(name,value,expires,path,domain,secure){
 var today=new Date();
 today.setTime(today.getTime());
 if(expires){expires=expires*1000*60*60*24;}else{expires=1000*60*60*24-today.getTime()}
 var expires_date=new Date(today.getTime()+(expires));
 document.cookie=name+'='+escape(value)+((expires)?';expires='+expires_date.toGMTString():'')+((path)?';path='+path:'')+((domain)?';domain='+domain:'')+((secure)?';secure':'');
}

function deleteCookie(name,path,domain){
 if (getCookie(name)) document.cookie=name+'='+((path)?';path='+path:'')+((domain)?';domain='+domain:'')+';expires=Thu,01-Jan-1970 00:00:01 GMT';
}