parseQueryString.js

/**
 * Parse query string into an object.
 * 
 * @author Craig Anderson <[email protected]>
 * @link https://gist.github.com/4760400
 */
function parseQueryString(unparsed) {
	if(typeof unparsed == "undefined") {
		unparsed = window.location.search;
	}
	unparsed = unparsed.replace(/^\?/, "");
	var parsed = {};
	var keyValuePairs = unparsed.split(/&/m);
	var numKeyValuePairs = keyValuePairs.length;
	for(var keyValuePairIndex = 0; keyValuePairIndex < numKeyValuePairs; keyValuePairIndex++) {
		var keyValuePair = keyValuePairs[keyValuePairIndex].split(/=/);
		if(keyValuePair.length == 2) {
			var key = keyValuePair[0];
			var value = keyValuePair[1];
			parsed[key] = value;
		}
	}
	return parsed;
}