// JavaScript Document
function fetch_object(idname)
{
    var my_obj = document.getElementById(idname);
    return my_obj;
}
function toggle_nav(obj)
{
   for (i = 1; i<= 8; i++  )
    {
        var nav_img = fetch_object("nav_" + i);
        var sub_nav = fetch_object("sub_nav_" + i);
        var sub_nav_index = fetch_object("sub_nav_0");
        sub_nav_index.style.display = "none";
        if (obj == i)
        {
            sub_nav.style.display = "block";
			if (obj == 3 ||obj == 4 ||obj == 7)
	         	{
					nav_img.style.background='url(images/nav_mouseover2.gif)';	
				}
					else
					{
					nav_img.style.background='url(images/nav_mouseover.gif)';		
					}
        }
        else
        {
            sub_nav.style.display = "none";
        }
    }
}
 function navmouseout(obj)
      {
		  
	   var nav_img = fetch_object("nav_" + obj);
	   nav_img.style.background='none'; 
	 }