var navUA=navigator.userAgent.toLowerCase();var tipoBrowser;var tipoPlataforma;if(navUA.indexOf('ipod')!=-1)
tipoBrowser='iphone';else if(navUA.indexOf('iphone')!=-1)
tipoBrowser='iphone';else if(navUA.indexOf('msie')!=-1)
tipoBrowser='explorer';else if(navUA.indexOf('netscape')!=-1)
tipoBrowser='netscape';else if(navUA.indexOf('firefox')!=-1)
tipoBrowser='firefox';else if(navUA.indexOf('safari')!=-1)
tipoBrowser='safari';if(navUA.indexOf('windows')!=-1)
tipoPlataforma='windows';else
tipoPlataforma='mac';function createCookie(name,value,days){if(days){var date=new Date();date.setTime(date.getTime()+(4*60*60*1000));var expires="; expires="+date.toGMTString();}
else
expires="";document.cookie=name+"="+value+expires+"; path=/";}
function getCookieVal(offset){var endstr=document.cookie.indexOf(";",offset);if(endstr==-1)
endstr=document.cookie.length;var clave=unescape(document.cookie.substring(offset,endstr));return clave.toLowerCase();}
function Get_Cookie(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;}