function queryCommandValue(command) {
			var func;

			// Is hidden then return undefined
			if (editor.quirks.isHidden()) {
				return;
			}

			command = command.toLowerCase();
			if ((func = commands.value[command])) {
				return func(command);
			}

			// Browser commands
			try {
				return editor.getDoc().queryCommandValue(command);
			} catch (ex) {
				// Fails sometimes see bug: 1896577
			}
		}
Queries the command value for example the current fontsize.

@method queryCommandValue
@param {String} command Command to check the value of.
@return {Object} Command value of false if it's not found.