function menu_highlight(menuid){
	var the_menuid = "menu_item_" + menuid;
	var menuitem = document.getElementById(the_menuid);
	menuitem.style.backgroundImage = "url('/new_images/hi_top_menu_bg.gif')";
	for(i=0;i<4;i++){
		var dropitemid = "drop_menu_" + menuid;
		var dropitem = document.getElementById(dropitemid);
		dropitem.style.visibility = "hidden";
	}
	drop_menu(menuid);
}

function menu_unhighlight(menuid){
	var the_menuid = "menu_item_" + menuid;
	var menuitem = document.getElementById(the_menuid);
	menuitem.style.backgroundImage = "url('/new_images/top_menu_bg.gif')";
	undrop_menu(menuid);

}

function drop_menu(menuid){
	var dropitemid = "drop_menu_" + menuid;
	var dropitem = document.getElementById(dropitemid);
	dropitem.style.visibility = "visible";

}

function undrop_menu(menuid){
	var dropitemid = "drop_menu_" + menuid;
	var dropitem = document.getElementById(dropitemid);
	dropitem.style.visibility = "hidden";

}

function drop_highlight(menuid){
	myDropId = "drop_item_" + menuid
	var contentitem = document.getElementById(myDropId);
	contentitem.style.backgroundColor = "#aaaaaa";
	
}

function drop_unhighlight(menuid){
	myDropId = "drop_item_" + menuid
	var contentitem = document.getElementById(myDropId);
	contentitem.style.backgroundColor = "";
	
}