(function($) {
    /* --------------------------------------------------------------------- */
    /*
    *  Extracts a string parameter from the url query string.  Basic operation
    *  wont handle multiples such as radio buttons etc.  Just gets the first 
    *  instance of the name and returns it's value.
    *
    *  @param   {String} Name of value to extract from URL QueryString.
    *  @returns {String} Value of QueryString attribute or null if not found
    */
    $.param = function(name) {
        var exp = new RegExp('[\\?&]' + name + '=([^&#]*)');
        var param = exp.exec(window.location.href);
        return (param) ? param[1] : null;
    }

})(jQuery);


/* EXAMPLE USAGE */
/* Looks for a PageConfig object first then the Section querystring param */

$(function() {
    $('#tabs li a>span:contains(' +
        (($.PageConfig || {}).section || $.param("Section")) || "Home" + 
      ')').parent().addClass("current");
});

Extracts a string paremeter from the url query string.  Basic operation wont handle multiples such as radio buttons etc.  Just gets the first instance of the name and returns it's value.

Primitive QueryString Param Extractor Plugin

javascript, plugin, jquery

JavaScript