function langSel()
{
  this.langVars = new Array(); 

  var self = this;
  this.addLV = function (varName, str)
   {
     self.langVars[self.langVars.length] = new Array(varName, str);
   }

  this.getLV = function (varName)
   {
     for (var i=0,  m=self.langVars.length; i<m; i++ )
     {
       if (self.langVars[i][0]==varName) return self.langVars[i][1];
     }
     return '';
   }
  this.getVNs = function ()
   {
     var arr=new Array();

     for (var i=0,  m=self.langVars.length; i<m; i++ )
     {
       arr[arr.length]=self.langVars[i][0];
     }
     return arr;
   }
}