//Administracion de cookies

var cookie = {

	set:function(name, value){
		if(name != ''){document.cookie = name + '=' + value;}
	},
	
	get:function(name){
		//Without this, it will return the first value in document.cookie when name is the empty string.
		if(name == '') {return('')};
		
		name_index = document.cookie.indexOf(name + '=');
		
		if(name_index == -1) {return('');}
		
		cookie_value =  document.cookie.substr(name_index + name.length + 1, document.cookie.length);
		
		//All cookie name-value pairs end with a semi-colon, except the last one.
		end_of_cookie = cookie_value.indexOf(';');
		if(end_of_cookie != -1) {cookie_value = cookie_value.substr(0, end_of_cookie);}
		
		//Restores all the blank spaces.
		space = cookie_value.indexOf('+');
		while(space != -1){ 
			cookie_value = cookie_value.substr(0, space) + ' ' + 
			cookie_value.substr(space + 1, cookie_value.length);
			
			space = cookie_value.indexOf('+');
		}
		
		return(cookie_value); 
	},
	
	clear:function(name){
		expires = new Date();
		expires.setYear(expires.getYear() - 1);
		
		document.cookie = name + '=null' + '; expires=' + expires; 
	},
	
	clear:function(){
		Cookies = document.cookie;
		Cookie = Cookies;
		expires = new Date();
		expires.setYear(expires.getYear() - 1);
		
		while(Cookie.length > 0){
			//All cookie name-value pairs end with a semi-colon, except the last one.
			Cookie = Cookies.substr(0, Cookies.indexOf(';'));
			Cookies = Cookies.substr(Cookies.indexOf(';') + 1, Cookies.length);
			
			if(Cookie != ''){document.cookie = Cookie + '; expires=' + expires;}
			else{document.cookie = Cookies + '; expires=' + expires;}
		}
	}
}