function menu_link(num)
{
	switch(num)

	{

	  case 1:window.location="index.htm" ;break;

	  case 11:window.location="about_us.htm" ;break;

	  case 12:window.location="contact_us.htm" ;break;

	  case 13:window.location="instructors.htm" ;break;

	  case 14:window.location="index.htm" ;break;



	  case 2:window.location="main.htm" ;break;

	  case 21:window.location="main.htm" ;break;

	  case 22:window.location="erc_page.htm" ;break;

	  case 23:window.location="instructors.htm" ;break;

	  case 24:window.location="main.htm" ;break;



	  case 3:window.location="locations.htm" ;break;

	  case 31:window.location="locations.htm" ;break;

	  case 32:window.location="fort_location.htm" ;break;

	  case 33:window.location="locations.htm" ;break;

	  case 34:window.location="locations.htm" ;break;



	  case 4:window.location="getting_started.htm" ;break;

	  case 41:window.location="getting_started.htm" ;break;

	  case 42:window.location="videos.htm" ;break;

	  case 43:window.location="getting_started.htm" ;break;

	  case 44:window.location="getting_started.htm" ;break;



	  case 5:window.location="materials.htm" ;break;

	  case 51:window.location="materials.htm" ;break;

	  case 52:window.location="materials.htm" ;break;

	  case 53:window.location="materials.htm" ;break;

	  case 54:window.location="materials.htm" ;break;

	}
}