function compareHotspots(a, b) {
		return a.hotspotId.localeCompare(b.hotspotId) || a.backendHelpKey.id.localeCompare(b.backendHelpKey.id);
	}
Compares two given field help hotspots.

@param {object} a A field help hotspot
@param {object} b Another field help hotspot

@returns {-1|0|1} Wheter <code>a</code> is smaller, equal or greater