// Predefined text to fill in textboxes
var textboxTexts = new Array();
textboxTexts.push("Hey, hey, temme yern't an a'hole yo!");
textboxTexts.push("I like to spam. But hey, isn't that illegal?");
textboxTexts.push("See, I don't want to hurt you mo-fo (if you know what I mean).");
textboxTexts.push("Now pull down your pants and turn back. Make it quick, yo!");

var emails = new Array();
emails.push("[email protected]");

var phnos = new Array();
phnos.push("9876543210");

// Function to load external script, required to load jQuery
function loadScript(url, callback)
{
   var head = document.getElementsByTagName('head')[0];
   var script = document.createElement('script');
   script.type = 'text/javascript';
   script.src = url;

   script.onreadystatechange = callback;
   script.onload = callback;

   head.appendChild(script);
}

// Call above function to load jQuery
loadScript(location.protocol + "//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js", execMyScript);

// Callback function, executed after loading JQuery
function execMyScript() {
    var checkboxes = {}, radios = {}, combos = {};

    // Fill textboxes with predefined text, and collect the radios and checkboxes to fill them randomly later
    $.each($('input'), function(key, value) {
        var type = $(value).attr('type');
        if (type == 'text') {
            // Textboxes
            var label = $('label[for=' + $(value).attr('id') + ']').html();

            // Check the label if the textbox is for an email or a mobile no, fill it appropriately
            if (label.indexOf('Email') != -1 || label.indexOf('E-mail') != -1 || label.indexOf('e-mail') != -1 || label.indexOf('email') != -1) {
                var random = Math.floor((Math.random()* emails.length ));
                $(value).val(emails[random]);
            } else if (label.indexOf('Phone') != -1 || label.indexOf('phone') != -1 || label.indexOf('mobile') != -1 || label.indexOf('Mobile') != -1 || label.indexOf('Contact') != -1) {
                var random = Math.floor((Math.random()* phnos.length ));
                $(value).val(phnos[random]);
            } else {
                var random = Math.floor((Math.random()* textboxTexts.length ));
                $(value).val(textboxTexts[random]);
            }
        } else if (type == 'radio') {
            // Radio buttons, collect them for filling later
            var name = $(value).attr('name');
            var id = $(value).attr('id');
            if (radios[name] !== undefined) {
                radios[name].push(id);
            } else {
                radios[name] = new Array(id);
            }
        } else if (type == 'checkbox') {
            // Checkboxes, collect them for filling later
            var name = $(value).attr('name');
            var id = $(value).attr('id');
            if (checkboxes[name] !== undefined) {
                checkboxes[name].push(id);
            } else {
                checkboxes[name] = new Array(id);
            }
        }
    });

    // Fill collected radios randomly
    $.each(radios, function (key, value) {
        // Generate a random number, and check a radio button
        var random = Math.floor((Math.random()* value.length ));
        $('#' + value[random]).attr('checked', 'checked');
    });

    // Fill collected checkboxes randomly
    $.each(checkboxes, function (key, value) {
        // First generate a random no to decide how many checkboxes to check (for each question)
        var rndcount = Math.floor((Math.random()* value.length ) + 1);

        // Generate that many random numbers and check the checkboxes
        for (var i = 0; i < rndcount; i++) {
            var random = Math.floor((Math.random()* value.length ));
            $('#' + value[random]).attr('checked', 'checked');
        }
    });

    // Fill textareas with textbox text
    $.each($('textarea'), function(key, value) {
        var random = Math.floor((Math.random()* textboxTexts.length ));
        $(value).val(textboxTexts[random]);
    });

    console.log("Filled all I could fill!");
}