var $j = jQuery.noConflict(); 
        
        $j(document).ready(function(){
            getGoldFree('hgamecode', 'interfaceLevel1', 'interfaceLevel2', 'txtFree', 'GoldFree.aspx');
        });
        
        function getGoldFree(gameCodeId, startLevelId, endLevelId, goldFreeId, postUrl){
            var gameCode = document.getElementById(gameCodeId).value;
            var startLevel = document.getElementById(startLevelId).value;
            var endLevel = document.getElementById(endLevelId).value;
            $j.ajax({
                url : postUrl,
                type : 'post',
                data : 'startLevel=' + startLevel + '&gameCode=' + gameCode + '&endLevel=' + endLevel,
                dataType : 'html',
                success : function(html){
                    document.getElementById(goldFreeId).value = html;
                }
            });
        }