Javascript Get cookie and set cookie

Two simple javascript functions for getting and setting cookie values

function setCookie(c_name,value,expiredays){
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : "; expires="+exdate.toGMTString())+ "; path=/";
}
 
function getCookie(c_name){
if (document.cookie.length>0){
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1){ 
    c_start=c_start + c_name.length+1; 
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    } 
  }
	return false;
}
 

A more elaborate pair of cookie get / set functions can be found here:

http://techpatterns.com/downloads/javascript_cookies.php