function getCookie(Name) 
{   
	var search = Name + "="   
	
	if (document.cookie.length > 0) 
	{ 
		// if there are any cookies      
		offset = document.cookie.indexOf(search)
	        
		if (offset != -1) 
		{ 
			// if cookie exists          
			offset += search.length          
			
			// set index of beginning of value         
			end = document.cookie.indexOf(";", offset)          

			// set index of end of cookie value         
			if (end == -1)             
				end = document.cookie.length         

			return unescape(document.cookie.substring(offset, end))      
		}    
	}
}

// Sets cookie values. Expiration date is optional
function setCookie(name, value, expire) 
{   
	document.cookie = name + "=" + escape(value)   + ((expire == null) ? "" : ("; expires=" + expire.toGMTString()))
}