function get_subnav(subnavID)
{   
    //Nav selected        
   //document.getElementById("nav_" + subnavID).style.background = "#990000 url(../imgs/over_red.gif) repeat-x";   
   document.getElementById("nav_" + subnavID).src = "imgs/nav_" + subnavID + "_on.gif";
   
}

function display_content(contentID)
{   

        //turn off previous sub nav
        var nav_items = document.getElementsByName("sub_nav");
       
        for (i=0; i < nav_items.length; i++)
        {               
            document.getElementById(nav_items[i].id).className = null;     
        }
        
        //Turn off previous tert nav
        var tert_items = document.getElementsByName("tert_nav");
        for (i=0; i < tert_items.length; i++)
        {            
            document.getElementById(tert_items[i].id).style.display = "none";
        }
        
        //Turn off previous content items
        var content_items = document.getElementsByName("content");         
        for (i=0; i < content_items.length; i++)
        {   
            document.getElementById(content_items[i].id).style.display = "none";
            
        }
    
    //Turn on selected sub/tert nav and content
    document.getElementById("sub_" + contentID).className = "nav_selected";
    document.getElementById("tert_" + contentID).style.display="block"; 
    document.getElementById("tert_" + contentID + "_1").className ="nav_selected";   
    document.getElementById(contentID + "_1").style.display="block";
    
    var hbxLinkSetup = document.getElementById("sub_" + contentID).getElementsByTagName('a');    
    if (hbxLinkSetup)
    {
     
    	for (j = 0; j < hbxLinkSetup.length; j++) 
    	{    	
    		var hbxValue = hbxLinkSetup[j].innerHTML + " clicked";    		
    		_hbLink(hbxValue);
    	}
    }
    
    
}

function content_switcher (contentID, hbx)
{    
    //Turn off previous content items
    var content_items = document.getElementsByName("content");         
    for (i=0; i < content_items.length; i++)
    {   
        document.getElementById(content_items[i].id).style.display = "none";
        document.getElementById("tert_" + content_items[i].id).className = null;
    }
     
     document.getElementById(contentID).style.display="block";
     document.getElementById("tert_" + contentID).className ="nav_selected";
        		 		
      var hbxValue = document.getElementById("tert_" + contentID).innerHTML + " clicked";      
      _hbLink(hbxValue);
        
}


if(typeof(window.external) != 'undefined'){

//yes, this is evil browser sniffing, but only IE has this bug

document.getElementsByName = function(name, tag){
    if(!tag){
        tag = '*';
    }
    var elems = document.getElementsByTagName(tag);
    var res = []
    for(var i=0;i<elems.length;i++){
        att = elems[i].getAttribute('name');
        if(att == name) {
            res.push(elems[i]);
        }
    }
    return res;
}

}