console.log("engines running: client information");

// browser window size https://www.w3schools.com/jsref/prop_win_innerheight.asp
var width  = window.innerWidth  || document.documentElement.clientWidth  || document.body.clientWidth;
console.log("width", width)
var height = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;

/*
// bowser version https://stackoverflow.com/a/5918791
navigator.sayswho = (function(){
    var ua= navigator.userAgent, tem,
    M= ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
    if(/trident/i.test(M[1])){
        tem=  /\brv[ :]+(\d+)/g.exec(ua) || [];
        return 'IE '+(tem[1] || '');
    }
    if(M[1]=== 'Chrome'){
        tem= ua.match(/\b(OPR|Edge)\/(\d+)/);
        if(tem!= null) return tem.slice(1).join(' ').replace('OPR', 'Opera');
    }
    M= M[2]? [M[1], M[2]]: [navigator.appName, navigator.appVersion, '-?'];
    if((tem= ua.match(/version\/(\d+)/i))!= null) M.splice(1, 1, tem[1]);
    return M.join(' ');
})();
 */

// save information gathered
document.getElementById("id_window_width").value = width;
document.getElementById("id_window_height").value = height;
//document.getElementById("id_browser").value = navigator.sayswho;