function Lee_Cookie(name){
	var namestr = name + "="
	var namelen = namestr.length
	var cooklen = document.cookie.length
	var i = 0
	
	while(i < cooklen){
		var j = i + namelen
		if (document.cookie.substring(i,j) == namestr){
			endstr = document.cookie.indexOf(";",j)
			if (endstr == -1) 
				endstr = document.cookie.length;
			return document.cookie.substring(j,endstr)
		}
		i = document.cookie.indexOf(" ",i) + 1;
		if (i == 0) 
			break;	
	}
	return null;
}

function EscribeCookie(nombre_Cookie, Valor){
	var expdate = new Date();
	expdate.setTime(expdate.getTime() + (1*12*10*1000*365));	
	expdate = expdate.toGMTString();
	if(Valor != '')	
		Valor += ';expires=' + expdate + ';';
	else 
		Valor += ';';
	document.cookie = 'CookiePopUp_'+nombre_Cookie+'='+Valor;
	window.close();
}