function donavhighlights(){

	if(!document.layers){
	   
	   	var defaultpage = "index.htm";
		
	   	/* Grab page href and check to see if it's the folder root - if so add index.htm */
		
	   	var pagehref = document.location.href;
		
		if ( pagehref.charAt(pagehref.length-1) == "/" ){
			pagehref = pagehref + defaultpage;
		}
		
		
	    /* Get h1 grandparent nav element */
		/* Compare href of h3 grandparent nav and switch to 'menuactive' if same */
		var atags=document.getElementById("leftnav").getElementsByTagName("h3");
		
		var aname = atags[0].getElementsByTagName("a")[0].href;
		
		if( aname.indexOf( document.location.href )!=-1 ){
			
			atags[0].setAttribute('id', 'menuactive');
			
			var alink = atags[0].getElementsByTagName("a")[0];
			var atext = atags[0].getElementsByTagName("a")[0].innerHTML;
			atags[0].removeChild(alink);
			   
			atags[0].innerHTML = atext;
		}
		
	    /* Get h4 parent nav element */
		/* Compare href of h4 parent nav and switch to 'menuactive' if same */
		var atags=document.getElementById("leftnav").getElementsByTagName("h4");
		
		var aname = atags[0].getElementsByTagName("a")[0].href;
		
		if( aname.indexOf( pagehref )!=-1 ){
			
			atags[0].setAttribute('id', 'menuactive');
			
			var alink = atags[0].getElementsByTagName("a")[0];
			var atext = atags[0].getElementsByTagName("a")[0].innerHTML;
			atags[0].removeChild(alink);
			   
			atags[0].innerHTML = atext;
		}
	  
      
	    /* Get li navigation elements in array */
		/* Compare href of li navigation elements and switch to 'menuactive' if same */
		var atags =document.getElementById("leftnav").getElementsByTagName("li");
		
		for(var i=0;i<atags.length;i++){
		
			var aname = atags[i].getElementsByTagName("a")[0].href;
			
			if ( aname.substr(-1) == "/" ){
				aname = aname + defaultpage;
			}
			
			if(aname.indexOf( pagehref )!=-1){
			
				atags[i].setAttribute('id', 'menuactive');
				
				var alink = atags[i].getElementsByTagName("a")[0];
				var atext = atags[i].getElementsByTagName("a")[0].innerHTML;
				
				atags[i].removeChild(alink);
				
				atags[i].innerHTML = atext;
			
			}
		}
	}
}