diff --git a/GISDlg.cpp b/GISDlg.cpp
index 0d80fe2..943142b 100644
--- a/GISDlg.cpp
+++ b/GISDlg.cpp
@@ -71,7 +71,7 @@ CGISDlg::CGISDlg(CWnd* pParent /*=NULL*/)
 
 	
 
-	for (int i = 0;i<3;i++)
+	for (int i = 0;i<1000;i++)
 	{
 		//�������ͼ��ID
 		m_flyTrackLayerID[i] = -1;
@@ -1086,7 +1086,7 @@ void CGISDlg::OnEraseTrack()
  //�������
 void CGISDlg::EraseTrack(int uavid)
 {
-	if (uavid<0||uavid>2)
+	if (uavid<0||uavid>1000)
 	{
 		return;
 	}