[jQuery] Plugin: How to access the ID in a Non-Objekt?

[jQuery] Plugin: How to access the ID in a Non-Objekt?


Example:
I call a function in a Plugin like this:
$("#someElement").jActual("update");
in the Plugin i do the following:
this.html("hello");
Thats no Problem, but how can I get the id (in this example:
someElement) of the Element if this not exist?
if(this.length <= 0){
//how to give me the id of the NonObjekt?
}