/*
Este script controla la creacion. obtención y borrado
de los cookies creados en el sitio.
*/

var expDays = 30;
var exp = new Date(); 
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));

//Obtains the posicional value of the cookie
function getCookieVal (offset) {
  var endstr = document.cookie.indexOf (";", offset); 
    if (endstr == -1) 
	endstr = document.cookie.length; 
	return unescape(document.cookie.substring(offset, endstr));
}//

//Obtains the cookie value
function GetCookie (name) {
	
	var arg = name + "="; 
	var alen = arg.length; 
	var clen = document.cookie.length; 
	var i = 0; 
	

	while (i < clen) { 
	
		var j = i + alen; 
		
		if (document.cookie.substring(i, j) == arg) 
			return getCookieVal (j); 
			
		i = document.cookie.indexOf(" ", i) + 1; 
		
		if (i == 0) break; 
		
	} 
	
	return null;
}//

//Set one cookie value
function SetCookie (name,value) {

	var argv = SetCookie.arguments; 
	var argc = SetCookie.arguments.length; 	
	var expires = (argc > 2) ? argv[2] : null; 
	var path = (argc > 3) ? argv[3] : "/"; 
	var domain = (argc > 4) ? argv[4] : null; 
	var secure = (argc > 5) ? argv[5] : false; 
	
	//Creates the cookie
	if(expires==null){
	  expires = new Date(); 
      expires.setDate(expires.getDate() + 100);
      expires.setTime (expires.getTime() + 100); 
	}
	
	myCookie = name + "=" + escape (value) + 
			  ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
			  ((path == null) ? "" : ("; path=" + path)) + 
			  ((domain == null) ? "" : ("; domain=" + domain)) + 
			  ((secure == true) ? "; secure" : "");

	document.cookie = myCookie;
	
}


//Delete one cookie by your name
function DeleteCookie (name) {

	var exp = new Date(); 
	
	exp.setTime ( exp.getTime() - 10 ); 
	
	var cval = GetCookie (name); 
	
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
	
}//