var obj = { Fname1: \"John\", Lname1: \"Smith\", Age1: \"23\", Fname2: \"Jerry\", Lname2: \"Smith\", Age2: \"24\" }
with an object like this.
values = [] for(name in obj) { if (obj.hasOwnProperty(name) && name.test(/Fname|Lname/i) values[name] = obj[name]; }