// Constants
//  - general
var UU_STR_NONE = "";
var UU_STR_COOKIE_DELIMITER = ";";
var UU_STR_NVPAIR_SPEPARATOR = "=";
var UU_STR_COOKIE_SPACE = " ";
var UU_NVPAIR_ARR_LENGTH = 2;
var UU_NVPAIR_INDEX_NAME = 0;
var UU_NVPAIR_INDEX_VALUE = 1;

// Cookie functions

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

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 null;
}

function checkCookie(which)
{
	var cook=getCookie(which);
	if (cook==null)
	{
		
	}
}

// Function to nuke a cookie's value when we're tired of it
function deleteCookie(c_name)
{  
	if(UU_STR_NONE == getCookie(c_name))
		return false;
	
	if((null == c_name) || (undefined == c_name))
		return false;
	if((UU_STR_NONE == c_name))
		return false;
		
	var exptime = new Date(); 
	var expdate = new Date();  
	expdate.setTime(exptime.getTime() - 32);  

	document.cookie = c_name + UU_STR_NVPAIR_SPEPARATOR + UU_STR_COOKIE_DELIMITER +
		" expires" + UU_STR_NVPAIR_SPEPARATOR + expdate.toGMTString();
		
	return true;
}