function mudafrete(valor) {
	location.href='Fatura.php?Operacao=mudaFrete&idFrete='+valor;
}


function validar(form) { 
	key = document.formulario.query.value;
	if (key == "") {
		alert("Coloque uma palavra para fazer a busca.");
		formulario.query.focus();
		return false;
	}
}

function number_format (number, decimals, dec_point, thousands_sep)
{
  var exponent = "";
  var numberstr = number.toString ();
  var eindex = numberstr.indexOf ("e");
  if (eindex > -1)
  {
    exponent = numberstr.substring (eindex);
    number = parseFloat (numberstr.substring (0, eindex));
  }
  
  if (decimals != null)
  {
    var temp = Math.pow (10, decimals);
    number = Math.round (number * temp) / temp;
  }
  var sign = number < 0 ? "-" : "";
  var integer = (number > 0 ? 
      Math.floor (number) : Math.abs (Math.ceil (number))).toString ();
  
  var fractional = number.toString ().substring (integer.length + sign.length);
  dec_point = dec_point != null ? dec_point : ".";
  fractional = decimals != null && decimals > 0 || fractional.length > 1 ? 
               (dec_point + fractional.substring (1)) : "";
  if (decimals != null && decimals > 0)
  {
		if(dec_point=='') campo1=0; else campo1 =1;
		
    for (i = fractional.length - campo1, z = decimals; i < z; ++i)
      fractional += "0";
  }
  
  thousands_sep = (thousands_sep != dec_point || fractional.length == 0) ? 
                  thousands_sep : null;
  if (thousands_sep != null && thousands_sep != "")
  {
	for (i = integer.length - 3; i > 0; i -= 3)
      integer = integer.substring (0 , i) + thousands_sep + integer.substring (i);
  }
  
  return sign + integer + fractional + exponent;
}

function atualizafrete(valor,frete,i)
{
	var val = parseFloat(valor) + parseFloat(frete);
	val1 = number_format(val,2,',','.');
	
	val2 = number_format((parseFloat(frete)/i),2,'','.');
	
	document.getElementById('totalfrete').innerHTML = '<b>R$ '+val1+'</b>';
	if(document.getElementById('item_frete_1')) document.getElementById('item_frete_1').value = val2;
}

function MudaImagem(src,src2)
{
	document.getElementById('ImagemPrincipal').src = "img_produtos/"+src;
  if(document.getElementById('link1')) document.getElementById('link1').href = "img_produtos/"+src2;
}
function Password()
{
	window.open('ChangePassword.php','Passwd','width=250, height=150');
	return;
}

function abremenu()
{
	if(document.getElementById('menubusca').style.display=='none')
		 document.getElementById('menubusca').style.display = 'block';
	else
		 document.getElementById('menubusca').style.display = 'none';
}

function seleciona_busca(id_categoria,nome_categoria)
{
	document.getElementById('nomecategoriabusca').innerHTML = nome_categoria;
	document.getElementById('menubusca').style.display = 'none';
	document.getElementById('idCategoria').value = id_categoria;
}

function openajax()
{
	try{
		var ajax = null;
		ajax = new ActiveXObject("Microsoft.XMLHTTP");
	}catch(err){
		try{
			ajax = new ActiveXObject("Msxml2.XMLHTTP");
		}catch(err1){
			try{
				ajax = new XMLHttpRequest();
			}catch(err2){
				alert("Este brownser não possui!");
				return null;
			}
		}
	}
	return ajax;
}

function buscacep()
{
	carrega = openajax();
	if(carrega)
	{
		carrega.open("POST","buscacep.php", true);
		carrega.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
		carrega.onreadystatechange=function()
		{
			if(carrega.readyState==4)
			{
				if(carrega.responseText)
				{
					var dados = carrega.responseText;
					dados = dados.split(/\;/);
					
					document.getElementById('endereco').value = dados[0]+' '+dados[1];
					document.getElementById('bairro').value = dados[2];
					document.getElementById('cidade').value = dados[3];
				}
				else
				{
					//alert('Cep não encontrado');
					return;
				}
			}
		}
	}
	if(document.getElementById('cep2'))
	{
		var cep = document.getElementById('cep').value;
		var cep2 = document.getElementById('cep2').value;
		if(cep2=="") return;
		var parametro = "cep="+cep+"&cep2="+cep2;
	} else {
		var cep = document.getElementById('cep').value;
		var parametro = "cep="+cep;
	}
	carrega.send(parametro);
}