$(document).ready(function() {
    $("#reg").submit( function() {
        var link_url = "services/login.php";
        link_url += "?username=" + encodeURIComponent(document.reg.username.value) + "&password=" + encodeURIComponent(document.reg.password.value);
        executeGETrequest_new(link_url,"loginResponse");
        return false;
    });

    $("#username").focus( function() {
        if($("#username").val() == "потребителско име")
            $("#username").val("");
    });

    $("#username").blur( function() {
        if($("#username").val() == "")
            $("#username").val("потребителско име");
    });

    $("#password").focus( function() {
        if($("#password").val() == "парола")
            $("#password").val("");
    });

    $("#password").blur( function() {
        if($("#password").val() == "")
            $("#password").val("парола");
    });

   $("#search_s").focus( function() {
        if($("#search_s").val() == "търсене")
            $("#search_s").val("");
    });

   $("#search_s").blur( function() {
        if($("#search_s").val() == "")
            $("#search_s").val("търсене");
    });

    $("#search_d").focus( function() {
        if($("#search_d").val() == "ключова дума")
            $("#search_d").val("");
    });

   $("#search_d").blur( function() {
        if($("#search_d").val() == "")
            $("#search_d").val("ключова дума");
    });
});

function loginResponse(http_request) {
    if (http_request.readyState == 4 || http_request.readyState == 'complete') {
        if (http_request.status == 200) {
            var message=http_request.responseText;
            if(message.length > 0) {
                if(message == "<p>ok</p>") {
                    window.location = 'portfolio.php';
                }
                else {
                    $("#login_errmsg").show();
                    $("#login_errmsg").pause(2000);
                    $("#login_errmsg").fadeOut(1000);
                }
            }
        }
        else {
        }
    }
}

function makeRequest() {
    var http_request = false;
    if (window.XMLHttpRequest) {
        http_request = new XMLHttpRequest();
        if (http_request.overrideMimeType)
            http_request.overrideMimeType('text/xml');
    }
    else if (window.ActiveXObject) {
        try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP.5.0");
        } catch (e) {
            try {
                http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
        }
    }
    if (!http_request) {
        alert('Няма връзка със сървъра, свържете се с администратор.');
        return false;
    }
    return http_request;
}

function executePOSTrequest_new(link_url,params,func) {
    var http_request = makeRequest();
    var callback = func+"(http_request)";
    http_request.open("POST", link_url, true);
    http_request.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8")
    http_request.onreadystatechange = function() { eval(callback); };
    http_request.send(params);
}

function executeGETrequest_new(link_url,func) {
    var http_request = makeRequest();
    http_request.open('GET', link_url, true);
    http_request.setRequestHeader('Content-type', 'text/plain; charset=UTF-8;');
    http_request.onreadystatechange = function() { eval(func+"(http_request)"); };
    http_request.send(null);
}

function show_div(obj){
    if(document.getElementById(obj).style.display==''){
       document.getElementById(obj).style.display='none';
       return false;
    }
    return true;
}