function hasSelection (doc)
{
	var res = false;
	var as = doc.activeHistoryState;
	
	doc.selection.deselect();
	if (as != doc.activeHistoryState)
	{
		res = true;
		doc.activeHistoryState = as;
	}
return res; };

// ----- MAIN -----
var doc = activeDocument;
var bSelection = hasSelection(doc)

if (bSelection == false)
{
	app.activeDocument.selection.selectAll()
	app.activeDocument.selection.copy();
	app.activeDocument.selection.deselect();	
}
else { app.activeDocument.selection.copy(); }