function forms_validation() {
    error_message = 'Please complete all mandatory fields.';

    forms = [];
    /*
    forms['frm_forgot_password'] = 'email';
    forms['frm_contact_us'] = 'subject,message';
    forms['frm_login'] = 'email,password';
    */

    // associate the validation functions
    for (form_id in forms)
        if ($('#'+form_id).length > 0)
            $('#'+form_id).submit(function()
            {
                form_id = $(this).attr('id');
                fields = forms[form_id].split(',');
                found_all_values = true;
                for (key in fields)
                {
                    field_name = fields[key].trim();
                    field_names = [];
                    field_names.push('input[@name="' + field_name + '"]');
                    field_names.push('textarea[@name="' + field_name + '"]');
                    field_names.push('select[@name="' + field_name + '"]');

                    value_found = false;
                    for (key_field_names in field_names)
                    {
                        input_field = $(this).find(field_names[key_field_names]);
                        if (input_field.length > 0) {
                            if (input_field.attr('value').trim() != '') value_found = true;
                            else input_field.focus();
                            break;
                        }
                    }
                    if ( ! value_found) {
                        found_all_values = false;
                        break;
                    }
                }
                if ( ! found_all_values)
                {
                    alert(error_message);
                    return false;
                }
                return true;
            });
}


String.prototype.trim = function() {
    return this.replace(/^\s+|\s+$/g,"");
}

function order_by(orderby, direction) {
    $('table#manage_items').parent().before('<form id="frm_manage_items" action="" method="post"><input type="hidden" name="orderby" value="'+orderby+'" /><input type="hidden" name="direction" value="'+direction+'" /></form>');
    $('#frm_manage_items').submit();
}

function randomString(len)
{
    //var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
    var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ";
    var string_length = len;
    var randomstring = '';
    for (var i=0; i<string_length; i++) {
        var rnum = Math.floor(Math.random() * chars.length);
        randomstring += chars.substring(rnum,rnum+1);
    }
    return randomstring;
}


function imgover() {
    img_src = $(this).attr('src');
    if (img_src.indexOf('over') >= 0) return;
    img_src = img_src.substr(0, img_src.length - 4)+'_over.png';
    $(this).attr('src', img_src);
    $(this).addClass('over');
}

function imgout() {
    img_src = $(this).attr('src');
    if (img_src.indexOf('over') < 0) return;
    img_src = img_src.substr(0, img_src.length - 9)+'.png';
    $(this).attr('src', img_src);
    $(this).removeClass('over');
}

function bgover() {
    img_src = $(this).css('background-image');
    img_src = img_src.substr(4, img_src.length - 5);
    if (img_src.indexOf('over') >= 0) return;
    img_src = img_src.substr(0, img_src.length - 4)+'_over.png';
    $(this).css('background-image', 'url('+img_src+')');
}

function bgout() {
    img_src = $(this).css('background-image');
    img_src = img_src.substr(4, img_src.length - 5);

    if (img_src.indexOf('over') < 0) return;
    img_src = img_src.substr(0, img_src.length - 9)+'.png';
    $(this).css('background-image', 'url('+img_src+')');
}

function ask_delete(link) {
    if (window.confirm('Are you sure you want to delete this item?'))
        document.location = link;
}

function select_form_row() {
    $(this).addClass('selected');
    if ($(this).parent().hasClass('row'))
        $(this).parent().addClass('selected');
    else
        $(this).parent().parent().addClass('selected');
}

function deselect_form_row() {
    $(this).removeClass('selected');
    if ($(this).parent().hasClass('row'))
        $(this).parent().removeClass('selected');
    else
        $(this).parent().parent().removeClass('selected');
}

function repeat_item(item_name)
{
    obj_sample = $('#'+item_name+'_sample');
    obj_count = $('#'+item_name+'_count');
    if (obj_sample.length == 0 || obj_count.length == 0) return;
    the_count = parseInt(obj_count.val()) + 1;
    obj_count.attr('value', the_count);

    obj_instance = obj_sample.after(obj_sample.clone());
    obj_instance.attr('id', item_name + the_count).show();
    obj_instance.focus(select_form_row).blur(deselect_form_row);
//$('#'.item_name.'_sample').after(current_sample);
}

function remove_manager(the_etf_id, obj1, obj2) {
    the_manager_name = obj2.attr('manager_name');
    $.post(domain+'etfs/ajax_delete_manager', {
        etf_id: the_etf_id,
        manager_name: the_manager_name
    }, function (data) {
        if (data['error']) {
            alert(data['error_message']); return;
        }
        $(obj1).remove();
        $(obj2).remove();
    }, 'JSON');
}

//-------------------- [ PROJECT SPECIFIC ] ------------------------
function load_widget(category_id, order_field_val, order_val) {
    if (category_id == '') category_id = $('#selected_category').val();
    $('.widget').html('<div style="text-align: center"><h2>Loading data. Please wait..</h2><img src="images/loader47.gif" /></div>');
    $.post(domain+'home/ajax_etfs', {
        item: category_id,
        order_field: order_field_val,
        order: order_val
    }, function(data) {
        if (data['error']) {
            alert(data['error_message']); return;
        }
        $('.widget').html(data['html']);
    }, 'json');
}

function load_category_widget(category_id, order_field_val, order_val) {
    if (category_id == '') category_id = $('#selected_category').val();
    $('.categories_widget').html('<div style="text-align: center"><h2>Loading data. Please wait..</h2><img src="images/loader47.gif" /></div>');
    $.post(domain+'etfs/ajax_cwidget/' + category_id, {
        item: category_id,
        order_field: order_field_val,
        order: order_val
    }, function(data) {
        if (data['error']) {
            alert(data['error_message']); return;
        }
        $('.categories_widget').html(data['html']);
    }, 'json');
}

function check_search_symbol() {
    if ($('#search_symbol').val() != '') $('#frm_symbol').submit();
}
function check_search_text() {
    if ($('#search_text').val() != '') $('#cse-search-box').submit();
}

function ajaxcall(functionname, parameter, reload) {
    $.getJSON(domain+functionname+'/'+parameter, {}, function(data) {
        if (data['error']) { 
            alert(data['error_message']); return;
        }
        if (reload) window.location.reload(false);
    });
}