// JavaScript Document


var setCookie = function(c_name,value,expiredays) {
	if (value==null || value=="") {deleteCookie(c_name); return false;};
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+"="+escape(value)+((expiredays==null)?"":"; expires="+exdate.toGMTString());
};

var deleteCookie = function(c_name) {
	value=null; expiredays=null;
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+"="+escape(value)+((expiredays==null)?"":"; expires="+exdate.toGMTString());
};

var getCookie = function(c_name) {
	var value=false;
	try {
		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;
				value = unescape(document.cookie.substring(c_start,c_end));
			};
		};
		if(!value) value = "";
	} catch(err) {value = "";};
	return value;
};