function highlight_selected(item_num) {
	
	
	if (item_num < 10) {
		var selected_item_name = 'nav_menu_item_link_' + item_num;
		document.getElementById(selected_item_name).setAttribute('class', 'selected');
		document.getElementById(selected_item_name).setAttribute('className', 'selected');
	}

	var seledcted_bar_name = 'sub_nav_' + item_num;
	//document.getElementById(seledcted_bar_name).removeAttribute('class');
	//document.getElementById(seledcted_bar_name).removeAttribute('className');
	//alert(seledcted_bar_name);
	
	if (item_num > 1) {
		show_sub_menu(seledcted_bar_name);
		var inner_image = '';
		var inner_alt = '';
		switch (item_num) {
			case 2:
				inner_image = 'http://www.louisianahighschools.org/includes/images/interior/hvhs_interior_03_about.png';
				inner_alt = 'ABOUT';
			break;
			case 3:
				inner_image = 'http://www.louisianahighschools.org/includes/images/interior/hvhs_interior_03_students.png';
				inner_alt = 'STUDENTS';
			break;
			case 4:
				inner_image = 'http://www.louisianahighschools.org/includes/images/interior/hvhs_interior_03_educators.png';
				inner_alt = 'EDUCATORS';
			break;
			case 5:
				inner_image = 'http://www.louisianahighschools.org/includes/images/interior/hvhs_interior_03_businesses.png';
				inner_alt = 'BUSINESSES';
			break;
			case 6:
				inner_image = 'http://www.louisianahighschools.org/includes/images/interior/hvhs_interior_03_parents.png';
				inner_alt = 'PARENTS';
			break;
			case 7:
				inner_image = 'http://www.louisianahighschools.org/includes/images/interior/hvhs_interior_03_getinv.png';
				inner_alt = 'GET INVOLVED';
			break;
			case 8:
				inner_image = 'http://www.louisianahighschools.org/includes/images/interior/hvhs_interior_03_media.png';
				inner_alt = 'MEDIA';
			break;
			case 9:
				inner_image = 'http://www.louisianahighschools.org/includes/images/interior/hvhs_interior_03_pubs.png';
				inner_alt = 'PUBLICATIONS';
			break;
			case 10:
				inner_image = 'http://www.louisianahighschools.org/includes/images/interior/hvhs_interior_03_blog.png';
				inner_alt = 'BLOG';
			break;
		}
		document.getElementById('inner_left_image').setAttribute('src', inner_image);
		document.getElementById('inner_left_image').setAttribute('alt', inner_alt);
	}
}

function show_sub_menu(bar_name) {
	if(document.getElementById(bar_name)) {
		// The object exists so edit it
		document.getElementById(bar_name).removeAttribute('class');
		document.getElementById(bar_name).removeAttribute('className');
	} else {
		// The object doesn't exist yet, so we'll try again in 100 milliseconds
		setTimeout("show_sub_menu()", 100);
	} 
}