<div class="helpdiv"> The name of a custom JavaScript callback function in window scope to call each time a hot spot mouse action occurs.<br/> Alternatively you can pass the function directly as a JavaScript parameter. <br/><br/> Example of a callback function prototype:<br/><br/> <pre style="width:350px;font-face:monospace;word-wrap:break-word;">
function onFSISpin360HSAction(strAction, viewer, idViewer, idHotspot, node, param, angle){
  if (strAction == "click"){
    alert("clicked on hot spot " + idHotspot);
  }
}
</pre> action: a string representing the action "mouseover", "mouseout", "mousedown" or "click"<br/> viewer: the FSI Viewer JS instance calling the method<br/> idViewer: the value of the "id" attribute of the viewer's &lt;div&gt; tag<br/> idHotspot: the 0-based id of the hotspot<br/> node: the &lt;div&gt; node containing the hot spot content<br/> param: the content of the "actionParameter" parameter of the hot spot<br/> angle: the hot spot's perimeterAngle value (the angle at which it's visible best)<br/> </div>