function guardarSesion()
{
	createCookie("evalCookie", encodeURI(document.location), 365);
}

function leerSesion()
{
	var c = readCookie('evalCookie');
	
	if (c.indexOf('evalCookie')!=-1) 
		document.location.href = c.substring('evalCookie='.length,c.length);
}

// FUNCION PARA CREAR LA COOKIE
function createCookie(name,value,days) { //days indica el nš de dias q estara activa
	 if (days) {
		  var date = new Date();
		  date.setTime(date.getTime()+(days*24*60*60*1000));
  		var expires_ = "; expires=" + date.toGMTString();
	 }
	else expires = "";
	 //generamos la cookie
	 document.cookie = name + "=" + value + expires_ + "; path=/";
}

//FUNCION PARA LEER LA COOKIE
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
  		var c = ca[i];
  		while (c.charAt(0)==' ') 
  			c = c.substring(1,c.length);

  		if (c.indexOf(nameEQ) == 0) {
  			//return 
  			c.substring(nameEQ.length,c.length);

  		}
 	}
 	//alert ('El valor de la cookie es:'+ c);
	return c;
}


//FUNCION PARA BORRAR LA COOKIE
function eraseCookie(name) {
	 createCookie(name,"",-1);
}