var active_submenu = "0";
var category = "news";
  
function applyeffect(selectedImg){
	if (document.all){
		getObject(selectedImg).filters.blendTrans.stop()
		getObject(selectedImg).filters.blendTrans.apply()
	}
}

function playeffect(selectedImg){
	if (document.all)
		getObject(selectedImg).filters.blendTrans.play()
}

function changeImg(selectedImg){
	applyeffect(selectedImg)
	getObject(selectedImg).src = "../images/menu.gif";
	playeffect(selectedImg)
}

function menuActive(selectedImg)
{
   getObject(selectedImg+"_bg").src = "../"+category+"/menu_active.gif";
}

function menuInactive(selectedImg)
{
	changeImg(selectedImg+"_bg");
}

function fadeImg(selectedImg, imgName){
	applyeffect(selectedImg)
	getObject(selectedImg).src = imgName;
	playeffect(selectedImg)
	
	if(getObject("info")!=null)
	   getObject("info").style.visibility="hidden";
	   

}

function displayDetail(selected_submenu)
{
	getObject("detail_"+active_submenu).style.visibility="hidden";
    getObject("detail_"+selected_submenu).style.visibility="visible";

	active_submenu = selected_submenu;
}

function removeDescription()
{
		getObject("info").style.visibility="hidden";
}

function showDescription()
{
		getObject("info").style.visibility="visible";
}

function getObject(objId)
{
	return document.getElementById(objId);
}