var gravatar1;
var gravatar2;
var email1 = $(email1).val();
email1 = $.trim(email1);
email1 = email1.toLowerCase();
email1 = md5(email1);
gravatar1 = 'http://www.gravatar.com/avatar/' + email1;
var email2 = $(email2).val();
email2 = $.trim(email2);
email2 = email2.toLowerCase();
email2 = md5(email2);
gravatar2 = 'http://www.gravatar.com/avatar/' + email2;
是否有任何方法來確定gravatar1是否返回默認圖像,以便我可以覆蓋gravatar1以顯示gravatar2圖像。如果返回默認圖像,gravatar2只會覆蓋gravatar1。謝謝!確定gravatar是否使用javascript返回默認圖像