// JavaScript Document
var posX		= 0;
var qtdAMais	= 0;
var minX		= 0;
var larg		= 114;
$(document).ready(function(){
	$('#btn_esq').click(
						function(){
							moverLIs(0);
						}
						);
	$('#btn_dir').click(
						function(){
							moverLIs(1);
						}
						);
	qtdAMais	= $('.canvas_idiomas ul').children().size() - 6;
	minX		= qtdAMais * larg * -1;
	$(".menu ul").supersubs({ 
		minWidth:    5,   // minimum width of sub-menus in em units 
		maxWidth:    10,   // maximum width of sub-menus in em units 
		extraWidth:  1     // extra width can ensure lines don't sometimes turn over 
		// due to slight rounding differences and font-family 
	}).superfish();  // call supersubs first, then superfish, so that subs are 
	// not display:none when measuring. Call before initialising 
	// containing tabs for same reason. 
});
function moverLIs(sentido){
	if(sentido == 0 && posX > minX){
		posX -= larg;
	}
	else{
		if(sentido == 1 && posX < 0){
			posX += larg;
		}
	}
	if(posX <= minX){
		$('#btn_esq').removeClass('btn_naveg');
		$('#btn_esq').addClass('btn_naveg_disabled');
	}
	else{
		$('#btn_esq').removeClass('btn_naveg_disabled');
		$('#btn_esq').addClass('btn_naveg');
	}
	if(posX >= 0){
		$('#btn_dir').removeClass('btn_naveg');
		$('#btn_dir').addClass('btn_naveg_disabled');
	}
	else{
		$('#btn_dir').removeClass('btn_naveg_disabled');
		$('#btn_dir').addClass('btn_naveg');
	}
	$('.canvas_idiomas ul').css('left', posX);
}