function active_menu(){	
	if(g_activelink!=null){
	document.getElementById('main_nav').getElementsByTagName('li')[g_activelink].className='active';
	}
//removeBorder();
}

function show_submenu(_id){
	var cap_home = document.getElementById('main_nav').getElementsByTagName('li')[_id].getElementsByTagName('a')[0].text;
	
	if(cap_home=="Home"){
		document.getElementById('main_nav').getElementsByTagName('li')[_id].className='selected';
		}
	else{
	document.getElementById('main_nav').getElementsByTagName('li')[_id].className='selected arrow';
	document.getElementById(_id).style.display='block';
	}
}

function hide_submenu(_id){

	document.getElementById('main_nav').getElementsByTagName('li')[_id].className='';
	if(document.getElementById(_id)!=null){
	document.getElementById(_id).style.display='none';
	}
	
	if(g_activelink!=null){
	active_menu();
	}
}

//function removeBorder(){
	//var tot_ul=document.getElementById('sub_menu').getElementsByTagName('ul').length
	//	for(var i=0; i<tot_ul; i++)
		//{
			//document.getElementById('sub_menu').getElementsByTagName('ul')[i].getElementsByTagName('a')[0].style.border='0px';
		//}
	//}