function menu_link(num)
{
	switch(num)

	{

	  case 1:window.location="default.aspx" ;break;

	  case 2:window.location="aboutus.aspx" ;break;
	  
	  case 3:window.location="ordermain.aspx" ;break;

	  case 4:window.location="passwords.aspx" ;break;

	}
}