function getCookie(n){
	var c,i=0,eq=n+'=',ca=document.cookie.split(';');
	for(i;i<ca.length;i++){
		c = ca[i];
		while(c.charAt(0)==' ') c=c.substring(1,c.length);
		if (c.indexOf(eq)==0) return c.substring(eq.length,c.length);
	}
	return '';
}
function setCookie(n,v,days){
  var ex='',xd=new Date();
  days=isNaN(days)?0:days;
  days=(days==0)?999:days;
  xd.setTime(xd.getTime()+days*24*60*60*1000);
  ex='; expires='+xd.toGMTString();
  document.cookie=n+'='+v+ex+'; path=/';
}