var interval = new Array();
function untrans(idmenu)
{
	var idcamada = "submenu_"+idmenu;
	document.getElementById(idcamada).style.display = 'block';
	var total = parseInt(document.getElementById('trans'+idcamada).value);
	if(total==90) { document.getElementById(idcamada).style.filter = "Alpha(Opacity="+total+")"; clearInterval(interval[idmenu]); return; }
	document.getElementById('trans'+idcamada).value = (total+5);
	document.getElementById(idcamada).style.filter = "Alpha(Opacity="+total+")";
	
	if(String(total).charAt(1)) var t = String(total).charAt(0);
	else t = 0;
	document.getElementById(idcamada).style.MozOpacity = eval("0."+(parseInt(t)+1));
}

function trans(idmenu)
{	
	var idcamada = "submenu_"+idmenu;
	var total = parseInt(document.getElementById('trans'+idcamada).value);
	if(total==0) { document.getElementById(idcamada).style.filter = "Alpha(Opacity="+total+")"; document.getElementById(idcamada).style.display = 'none'; clearInterval(interval[idmenu]); return; }
	document.getElementById('trans'+idcamada).value = (total-5);
	document.getElementById(idcamada).style.filter = "Alpha(Opacity="+total+")";
	
	if(String(total).charAt(1)) var t = String(total).charAt(0);
	else t = 0;
	document.getElementById(idcamada).style.MozOpacity = eval("0."+t);
}

function submenu(op,idmenu)
{	

	if(op == "")
	{	
		clearTimeout(interval[idmenu]);
		interval[idmenu] = setInterval("untrans('"+idmenu+"')",2);
	}
	else
	{	
		clearTimeout(interval[idmenu]);
		interval[idmenu] = setInterval("trans('"+idmenu+"')",2);
		document.getElementById(op).style.backgroundColor = '';
	}
}

function closeMenuItem () {

		  submenu('portas-giratorias',1);
		  submenu('semi-giratorias',2);
		  submenu('cabines-seguranca',3);
		  submenu('portais-seguranca',4);
		  submenu('outros-modelos',5); 
		  document.getElementById('portas-giratorias').style.backgroundColor=''; 
		  document.getElementById('semi-giratorias').style.backgroundColor=''; 
		  document.getElementById('cabines-seguranca').style.backgroundColor=''; 
		  document.getElementById('portais-seguranca').style.backgroundColor=''; 
		  document.getElementById('outros-modelos').style.backgroundColor='';

}