var queryString = new Array();
initializeQueryString();

function initializeQueryString() {
    var query = window.location.search.substring(1);
    var parms = query.split('&');

    for (var i=0; i<parms.length; i++) {
        var pos = parms[i].indexOf('=');
        if (pos > 0) {
            var key = parms[i].substring(0,pos);
            var val = parms[i].substring(pos+1);
            val = val.replace(/\%20/g, " ");
            queryString[key] = val;
        }
    }
}