define("io-extra",["util","querystring","dom","io-base","util"],function(t){var e,r,n,o=t("util"),a=t("querystring"),i=t("dom"),c=t("io-base"),u=t("util");return e=function(t){function e(t){var e,r=m.guid("io-iframe"),n=f.getEmptyIframeSrc();return e=t.iframe=f.create("'),f.prepend(e,y.body||y.documentElement),e}function r(t,e,r){var n,o,a,i=[];return m.each(t,function(t,c){for(n=m.isArray(t),n||(t=[t]),o=0;o