Используя стандартный Business Service FINS Data Transfer Utilities вы можете получить activeViewName on Load_applet

function WebApplet_Load (){      
  try {
    var vBS = TheApplication().GetService("FINS Data Transfer Utilities"); 
	var inBS = TheApplication().NewPropertySet(); 
	var outBS = TheApplication().NewPropertySet(); 
	vBS.InvokeMethod("GetActiveViewProp", inBS, outBS); 
 
	var viewName = outBS.GetProperty("View");
  } catch (e) {
    TheApplication().RaiseErrorText(e.errText);
  }finally{
    vBS = inBS = outBS = viewName = null;
  }
}