jQuery.extend({

/**

    * Returns get parameters.

    *

    * If the desired param does not exist, null will be returned

    *

    * @example value = $.getURLParam("paramName");

    */

    getURLParam: function(strParamName)

    {

        var strReturn = "";

        var strHref = window.location.href.toUpperCase();

        var bFound = false;

        var cmpstring = strParamName.toUpperCase() + "=";

        var cmplen = cmpstring.length;

        if (strHref.indexOf("?") > -1)

        {

            var strQueryString = strHref.substr(strHref.indexOf("?") + 1);0

            var aQueryString = strQueryString.split("&");

            for (var iParam = 0; iParam < aQueryString.length; iParam++)

            {

                if (aQueryString[iParam].substr(0, cmplen) == cmpstring)

                {

                    var aParam = aQueryString[iParam].split("=");

                    strReturn = aParam[1];

                    bFound = true;

                    break;

                }

            }

        }

        if (bFound == false) return null;

        //  www.permadi.com/tutorial/urlEncoding/

        //<space> %20  or +

       // return escape(sStr).replace(/\+/g, '%2B').replace(/\"/g, '%22').replace(/\'/g, '%27').replace(/\//g, '%2F');

        strReturn = strReturn.replace(/\+/g, '%20');

        return unescape(strReturn);

    },

    getStringParam: function(strParamName, strParamString)

    {

        var strReturn = "";

        var strHref = strParamString.toUpperCase();

        var bFound = false;

        var cmpstring = strParamName.toUpperCase() + "=";

        var cmplen = cmpstring.length;

        var strQueryString = strHref;

        var aQueryString = strQueryString.split("&");

        for (var iParam = 0; iParam < aQueryString.length; iParam++)

        {

            if (aQueryString[iParam].substr(0, cmplen) == cmpstring)

            {

                var aParam = aQueryString[iParam].split("=");

                strReturn = aParam[1];

                bFound = true;

                break;

            }

        }

        if (bFound == false) return null;

        return strReturn;

    }

});