function criaCookie(nome,valor,dias)
{
	if (dias)
	{
		var data = new Date();
		data.setTime(data.getTime()+(dia*24*60*60*1000));
		var expira = "; expires="+data.toGMTString();
	}
	else
	{
	    var expira = "";
	}
	document.cookie = nome+"="+valor+expira+"; path=/";
}

function leCookie(nome) {
	var nomeEQ = nome + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++)
	{
		var c = ca[i];
		while (c.charAt(0)==' ')
		{
		    c = c.substring(1,c.length);
		}
		if (c.indexOf(nomeEQ) == 0)
		{
		    return c.substring(nomeEQ.length,c.length);
		}
	}
	return null;
}

function keyNum(event)
{
  if(event.which==0)
  {
  }
  else
  {
      var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
      var caract = new RegExp(/^[0-9]+$/i);
      var caract = caract.test(String.fromCharCode(keyCode));
      if(!caract && keyCode!=13)
      {
          try{
          keyCode=0;
          return false;
          }
          catch(ex)
          {
            event.returnValue = false;
          }
      }
  }
}

function keyNum2(event)
{
  if(event.which==0)
  {
  }
  else
  {
      var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
      var caract = new RegExp(/^[0-9]+$/i);
      var caract = caract.test(String.fromCharCode(keyCode));
      if(!caract && keyCode!=13 && keyCode!=44)
      {
          try{
          keyCode=0;
          return false;
          }
          catch(ex)
          {
            event.returnValue = false;
          }
      }
  }
}