function setcookies(sname,svalue,oexpires,spath,sdomain,bsecure){
    var scookie=sname+"="+ encodeURIComponent(svalue);
    if(oexpires){
        scookie+="; expires="+oexpires;
    }
    if(spath){
        scookie+=";path="+spath;        
    }
    if(sdomain){
        scookie+=";domain="+sdomain;
    }
    if(bsecure){
        scookie+=";secure";
    }
    document.cookie=scookie;
}

function getcookie(sname){
    var sre="(?:;)?"+sname+"=([^;]*);?";
    var ore=new RegExp(sre);
    if(ore.test(document.cookie)){
        return decodeURIComponent(RegExp["$1"]);
    }
    else{
        return null;
    }
	alert(document.cookie);
}

function deletecookie(sname,spath,sdomain){
    setcookies(sname,"",new date(0),spath,sdomain);
}

function mysetcookies(sname,svalue){
	var oexpires = new Date((new Date()).getTime() + 15 * 60000); 
	setcookies(sname,svalue,oexpires,"/","bytou.com",false);
}