["12. Example Implementation One Instance Launching"]

# Example Implementation One Instance Launching

This is an example extract from the NotepadA for one instance launching under the floatWindow environment. 



```
ao_module_setWindowTitle("NotepadA Initializing...");
**var** instances = ao_module_getProcessID("NotepadA");
**var** filepath = {filepath to be opened};
**var** filename = {display filename};
remove(instances,ao_module_windowID);
*//Remove the hidden newWindow window that is used to launch Float Windows from FloatWindow.php*
**if** (instances.includes("newWindow")){ 
  remove(instances,"newWindow");
}
*//Check if there are instances already initialized*
**if** (instances.length == 0){
  *//Open a new float window for the file*
  console.log("[NotepadA] Opening " + filepath + " in a new floatWindow");
  window.location.href = "index.php?filename=" + filename + "&filepath=" + filepath;
}**else** **if** (instances.length > 0){
  *//Open the new page in the first instances in list*
  **var** targetWindow = instances[0];
  console.log("[NotepadA] Opening " + filepath + " in floatWindow " + targetWindow);

  parent.crossFrameFunctionCall(targetWindow,"newEditor('" + filepath + "');"); 

*//The newEditor is a function in the main window that used to open a new file.*
  ao_module_close();
}

**function** **remove**(array, element) {
  **const** index = array.indexOf(element);
  array.splice(index, 1);
}
```