Все свойства объекта

function dumpProps(obj, parent) {
 // Go through all the properties of 
 // the passed-in object
 for (var i in obj) {
    // if a parent (2nd parameter) was passed
    // in, then use that to
    // build the message. Message includes 
    // i (the object's property name)
    // then the object's property value 
    // on a new line
    if (parent) { var msg = parent + "." 
              + i + "\n" + obj[i]; } 
    else { var msg = i + "\n" + obj[i]; }
    // Display the message. If the user 
    // clicks "OK", then continue. If they
    // click "CANCEL" then quit this 
    // level of recursion
    if (!confirm(msg)) { return; }
    // If this property (i) is an object, 
    // then recursively process the object
    if (typeof obj[i] == "object") {
       if (parent) { dumpProps(obj[i], parent 
              + "." + i); } 
    else { dumpProps(obj[i], i); }
    }
 }
}

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