// JavaScript Document - Navigation Toggle

// call sample - navInit('03');
function navInit(navID) {
	document.getElementById('nav_' + navID).style.background = "url(/assets/image/nav_primary_hover.gif)";
	document.getElementById('nav_' + navID).style.backgroundRepeat = "no-repeat";
	
	var menuID = 'submenu_' + navID;
	
	if (document.getElementById(menuID)) {
		showAndHideMenu(menuID);
	}
};

/*function navInit(navID, menuID) {
	document.getElementById(navID).style.background = "url(../assets/image/nav_primary_hover.gif)";
	document.getElementById(navID).style.backgroundRepeat = "no-repeat";
	
	if (menuID) {
		showAndHideMenu(menuID);
	}
};*/

function showAndHideMenu(targetMenuID) {
	// check to see if the target menu is hidden or visible
	var attributeValue = document.getElementById(targetMenuID).style.display;
	
	// if its hidden, show it
	if (attributeValue == "none") {
		document.getElementById(targetMenuID).style.display = "block";
	} else { // if its visible, hide it
		document.getElementById(targetMenuID).style.display = "none";
	};
};