**(mouseout-prepend: // [[harlowe:HookName|HookName]] or [[harlowe:String|String]]//) -> //[[harlowe:Changer|Changer]]//**

This is similar to [[harlowe:click-prepend|(click-prepend:)]], but uses the [[harlowe:mouseout|(mouseout:)]] macro's behaviour instead of
[[harlowe:click|(click:)]]'s. For more information, consult the description of [[harlowe:click-prepend|(click-prepend:)]].