Plugin loads its script too broadly, blocking buttons in other extensions

The plugin is loading its script too broadly, making the

function disableSaveChanges()
{
	jQuery("form[action='options.php'] input[type='submit']").attr('disabled','disabled');
}

bit apply to other extensions’ settings pages, disabling buttons.

This should be solved by either making the jQuery call more specific or loading the script only on the plugin’s settings page.