I have a snippet form a wikipedia api object and would like to know how to get the key "3823": which varies each time a different page is requested.

Code:
var wp = {
	"query":{
		"pages":{
			"3823":{
				"pageid":3823,
				"ns":0,
				"title":"Binary",
				"extract":"<p><b>Binary</b> means <i>composed of two pieces or two parts</i> and may refer to:</p>\n\n",
				"links":[{
					"ns":0,"title":"Binary-coded decimal"},{
					"ns":0,"title":"Binary (Assemblage 23 song)"},{
					"ns":0,"title":"Binary code"}],
				"langlinks":[{
					"lang":"de","*":"Bin\u00e4r"},{
					"lang":"fr","*":"Binaire"},{
					"lang":"ur","*":"\u062a\u062b\u0646\u06cc\u06c1"}]
			}
		}
	}
};
Thanks.