How to inspect Javascript Objects

Question

How can I inspect an Object in an alert box? Normally alerting an Object just throws the nodename:

alert(document);

But I want to get the p

Answer 1

var str = "";
for(var k in obj)
    if (obj.hasOwnProperty(k)) //omit this test if you want to see built-in properties
        str += k + " = " + obj[k] + "\n";
alert(str);